DAELIM NS125III - SERVICE Service Manual Download

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Transmission/Crankshaft/Crank Case

Replacement

L. crank case

●

Use special tools to remove the drive shaft
bearing.

Tools:Bearing remover set

Remover shaft
Remover head

●

Remove the final shaft bearing and oil seal.

●

Remove the countergear bearing.

●

Apply clean engine oil to a new bearing, and
assemble it to the crank case.

Tools: Main shaft bearing:

Driver
Attachment, 32

35mm

Countershaft bearing:
Driver
Attachment, 42

47mm

Pilot 20mm

●

Install a new final shaft oil seal.

11-9

Crankshaft Assembly

●

Apply clean engine oil to the new R. crankshaft
bearing, and press in the bearing into the R.
crank case.

Tools: Driver

Attachment, 72

75mm

Pilot, 35mm

●

Use special tools to assemble the crankshaft to
the L. crank case.

Tools: Assembly shaft

Crankshaft assembly collar

Crankshaft

Driver

Remove shaft

Final shaft bearing

Drive shaft

bearing

Driver

Attachment

Outer driver

Final shaft

bearing

Summary of Contents for NS125III - SERVICE

Page 1: ...NUAL SM37 0211 01E HEAD OFFICE FACTORY 58 SUNG SAN DONG CHANGWON KYUNGNAM KOREA TEL 82 55 239 7000 FAX 82 55 239 7524 OVERSEAS SALES OFFICE 13 5 SUNG SOO 1DONG 1GA SUNG DONG GU SEOUL KOREA TEL 82 2 49...

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Page 4: ...not find the cause of trouble refer to Section 20 Troubleshooting Contents of this manual and specifications are subject to change without prior notice for improvement of vehicle quality No part of th...

Page 5: ......

Page 6: ...always put on the protection gears because the engine or the muffler is hot right after engine stops 4 Gasoline is extremely flammable Maintenance must performed in the place free of the open fire or...

Page 7: ...e bigger diameter to the smaller one from inside to outside and diagonally with the specified torque 5 Clean the parts after the overhaul and before the test and remove the cleaning oil with compresse...

Page 8: ...ection in case of the single sided sealed ball bearing Install the open direction or double sided sealed bearing in the way that the face marked with manufacturer and size should direct to the outer a...

Page 9: ...ll the oil seal so that the manufacturer marked surface directs outer surface direction not covered with oil Pay attention not to bend or damage the lip Apply the grease to the lip 20 Connect the tube...

Page 10: ...er in case of water proof coupler Recheck the condition of contact securing and continuity of each part after maintenance When connecting the battery the plus terminal must be connected first After co...

Page 11: ...following When disconnecting the coupler disconnect it while holding the coupler body Pull while holding the wire harness cord and do not remove the coupler connection Release the lock by inserting t...

Page 12: ...ng T start broaden the groove of T start using the wiring driver and release the torque Connect the harness and the hose to T start and then insert until the groove is locked When removing T start fro...

Page 13: ...ess not to be pulled or expanded when the handle is turned to the right or the left completely Avoid excessive bending or chewing and interference with the engine Prior to using the tester please read...

Page 14: ...ame serial number Engine serial number FARME SERIAL NUMBER LOCATION The frame serial number is stamped on the front central part of the frame ENGINE SERIAL NUMBER LOCATION The engine serial number is...

Page 15: ...e Drum brake Fuel tank capacity Full capacity 7 5 Reserve capacity 1 2 Caster angle 25 Trail 84 7 Front fork oil capacity 80 Type Oil cooled air cooled 4 cycle SOHC engine Cylinders Arrangement 1 Sing...

Page 16: ...uction 2 786 39 14 Ignition system C D I lgnition Ignition timing F mark 15 BTDC 1 800 rpm Full advance 19 AC generator capacity 125W 5 000 rpm Battery type capacity Closed type MF 12V 8AH Spark plug...

Page 17: ...8 6 1 2 12 8 Transmission cover drain bolt 1 8 1 0 10 7 Transmission cover check bolt 1 8 0 9 9 6 Cooling fan bolt 3 6 1 0 10 7 Starting clutch nut 1 22 9 5 95 67 Starter motor terminal nut 2 6 0 9 9...

Page 18: ...ck absorber upper bolt 1 10 2 7 27 20 Rear shock absorber lower bolt 1 10 4 0 40 29 Rear shock absorber damper rod lock nut 2 10 3 8 38 27 Apply locking agent Torque values listed above are for specif...

Page 19: ...Add oil If there is no specific oil indicated use the designated or recommended engine oil Apply grease 3 1 Indicates reference page example Refer to page 3 1 Symbol Meaning Symbol Meaning OIL GREASE...

Page 20: ...itch connector Front winker connector Front brake hose Horn Radiator Packing lever Front brake hose Speedometer cable Rear brake cable Radiator hose Throttle cable Main switch Resister excepted some c...

Page 21: ...Service Information 1 16 CDI unit Ignition coil Radiator hose CDI unit Ignition coil Throttle cable Rear brake cable Fuel pump Fuel filter...

Page 22: ...atisfying the atmospheric temperature In your riding area based on the table shown on the right side 1 1 After disassembly Oil capacity 0 75 After Oil filter change 0 8 After Oil change 0 9 After Oil...

Page 23: ...ough Head gasket faulty Worn piston rings Low oil pressure Oil level now Pressure relief valve stuck open Plugged oil pick up screen Oil pump worn External oil leaks High oil pressure Pressure relief...

Page 24: ...er screen at the first maintenance interval after 1 000Km Clean the oil filter screen every 4 000Km Clean the filter screen with fresh cleaning oil Check the hole cap O ring for satisfactory condition...

Page 25: ...ent spring and filter cover and tighten bolts Torque value Oil filter cover 1 1kg m 11N m 8ft lb Oil Pump Remove the following parts Luggage box 4 5 Rear cushion bolt 6 2 RH floor side cover 4 5 Exhau...

Page 26: ...ip clearance Service limit 0 18mm 0 007in Inspection Assemble the inner and outer rotors to the oil pump Measure the pump body clearance Service limit 0 23mm 0 009in Measure the pump side clearance Se...

Page 27: ...pump to the R crank case cover Install the following parts Oil pump drive gear and driven gear Starter clutch Starter driven gear and reduction gear A C generator R crank case cover Shroud and coolin...

Page 28: ...lation Remove the front wheel Remove the front cover front side cover and inner box Loosen the flange bolt 3EA oil bolt and remove the radiator from the main pipe bracket Radiator Radiator bracket Rad...

Page 29: ...Inspection Check the damage or oil leaks from the radiator Radiator Installation Assemble the radiator to the main pipe bracket Tighten the oil bolt Install the inner box Install the front side cover...

Page 30: ...rease Control Cable Lubrication Remove and clean the upper assembly of the throttle cable and apply oil If the cable has expanded replace it Wheel bearing Side main stand pivot Brake caliper bracket W...

Page 31: ...MEMO...

Page 32: ...eep engine idling in a closed or poorly ventilated place for a long period of time NOTES Driver only Front tire 175kPa 1 75kg Rear tire 200kPa 2 00kg Cold tire pressure Driver and Front tire 225kPa 2...

Page 33: ...Torque Values Spark plug 1 1kg m 11N m 8ft lb Cylinder head cover bolts 1 0kg m 10N m 7ft lb Valve adjusting nuts 1 1kg m 11N m 8ft lb Timing hole cap 0 6kg m 6N m 4 3ft lb Tools Wrench 8 9mm Adjusti...

Page 34: ...ach scheduled maintenance period based on the information described in the owner s manual I Inspect and clean adjust lubricate or replace if necessary R Replace L Lubricate C Clean Frequency Odometer...

Page 35: ...the throttle grip does not operate properly lubricate the throttle cable If the throttle grip does not operate properly check the throttle cable for aging damage or kinking Check the throttle grip fre...

Page 36: ...e Genuine plug CREH 9 Spark plug clearance 0 8 0 9mm Torque value 1 1kg m 11N m 8ft lb NOTE Valve Tappet Clearance Remove the following parts Center cover 4 4 Loosen the 4 cylinder head bolts NOTE Mea...

Page 37: ...a compression gauge Open the throttle completely and crank the engine with the starter motor until the gauge reading rising Tool Compression gauge NOTE Compression pressure 13 8kg cm2 If the pressure...

Page 38: ...heck the brake pads for wear If the red mark on the pad reaches the brake disc replace the pads NOTE Brake Shoe Replacement If the arrow mark of the wear limit aligns with the mark when the rear brake...

Page 39: ...ight beam level by operating the adjusting screw located on the upper side of the front fender NOTE Side Stand Erect the main stand Pull the lower end of the side stand and see if it moves freely If t...

Page 40: ...ll nuts and bolts of the frame during the regular maintenance 3 3 to check if they meet the prescribed torque value Check all pins clips hose clamps and cable stays Inspections Adjustments Do not ride...

Page 41: ...ic cord interferes with the handle If the handle moves satisfactorily adjust the steering head bearing Check the cable if it interferes with the handle operation Wear indicator position mark Wheels Ti...

Page 42: ...moval installation Do not apply unreasonable force when disassembling covers to prevent possible damage A muffler is hot Do not service it immediately after the engine is stopped Service Information 4...

Page 43: ...g covers Front cover Inner box Front side cover Floor side cover Maintenance cover Center cover Rear under cover Rear handle cover Body cover Floor panel Front handle cover Luggage box Rear carrier Ta...

Page 44: ...e reverse order of removal Front Side Cover Removal Installation Remove the front fender 4 10 Remove the front wheel 12 5 Remove the 2 front lower flange bolts and the 2 upper screws Remove the 2 inne...

Page 45: ...n the main key cover slightly to unlock and remove the main key cover Remove the inner box Install in the reverse order of removal Center Cover Loosen the 4 setting screws assembled to the body cover...

Page 46: ...l Remove R L side covers Install in the reverse order of removal Luggage Box Unlock the system with the main key and open the seat Loosen the 4 cap nuts Remove the fuel tank cap NOTE Remove the luggag...

Page 47: ...nter cover 4 4 Loosen 2 each of the R L body cover grill screws set with the floor panel Loosen 1 each of the R L body cover clips assembled to the rear fender Loosen 1 each of the R L flange bolts se...

Page 48: ...r Panel Battery Cover Remove the center cover 4 4 Loosen 2 each of the R L pillion step cover setting screws of the floor mat and remove the floor mat Loosen the 2 battery cover setting screws and rem...

Page 49: ...crews Pull the front handle cover forward and remove the wiring Remove the front handle cover Install in the reverse order of removal Rear Handle Cover Loosen the 3 screws assembled to the handle bar...

Page 50: ...ll the gasket on the EX muffler connect the EX pipe and install the 2 flange nuts temporarily Install the 2 flange bolts on the R crankcase temporarily Tighten the 3 flange nuts to install the EX muff...

Page 51: ...fender A and B Loosen the 2 setting screws of the front fender A and remove the front fender A Loosen 1 setting screw of the front fender B Remove the speedometer cable guide Remove the front fender...

Page 52: ...MEMO...

Page 53: ...Fuel System 5 0 Fuel tank Fuel strainer Fuel pump Carburetor...

Page 54: ...UTION Do not excessively bend or twist cable Distorted or damaged cable may lead to mechanical malfunctions Pay particular attention to the position of O ring Replace with new ones when disassembled I...

Page 55: ...tory rotation Unsatisfactory idling adjustment Mixture too lean or rich Air cleaner clogged Secondary air absorbed into the intake system Fuel system clogged Mixture too lean Carburetor jets clogged F...

Page 56: ...bottom fuel tank bracket bolts Remove the fuel tank bracket Remove the fuel tank Installation Install in the reverse order of removal NOTES 5 3 Check for gasoline leakage Gasoline mark is on the fuel...

Page 57: ...se order of removal Carburetor Remove Remove the air cleaner 5 4 Loosen the throttle cable lock nut and remove the throttle cable from the carburetor Remove the auto cock cord Loosen the set plate set...

Page 58: ...e the jet needle holder spring and jet needle Inspection Check the vacuum piston for wear cracks scratches or other damage Check the jet needle edge for extensive wear twist or damage Check if the dia...

Page 59: ...or damage Check the float valve operation Remove the main jet needle jet holder and needle jet and remove the slow jet NOTE Prior to unfastening the pilot screws count the number of turns until the sc...

Page 60: ...l System Clean all jets and holes with an air hose 5 7 Assemble the needle jet needle jet holder main jet and slow jets Assemble and turn the pilot screw to the number of turns memorized Carburetor bo...

Page 61: ...the jet needle and spring to the piston and install the holder NOTE Install the compression spring and vacuum chamber Carburetor Installation Assemble the air vent fuel tubes and drain tubes to the ca...

Page 62: ...ns 1 10 Adjust the throttle operation Adjust the carburetor idling Adjust the pilot screws Check on oil leakage Pilot Screw Adjustment NOTE Gently tighten the pilot screw clockwise and unscrew in reve...

Page 63: ...MEMO...

Page 64: ...linder and piston Section 9 and 10 Carburetor Section 5 Oil pump Section 2 Items to be worked after removing engine Crankshaft crankshaft bearing crank case bearing Engine oil capacity 1 0 when disass...

Page 65: ...C generator and starter motor cable Remove the high tension cord Remove the carburetor 5 6 Remove the rear brake rod Remove the fuel tube Remove the L floor side cover remove the radiator hose Loosen...

Page 66: ...emoval NOTE Toque Engine hanger bolt Front 2 7kg m 27N m 20ft lb Rear 3 5kg m 35N m 25ft lb Check the following after the engine is assembled Engine oil Electric systems Adjust the rear brake free pla...

Page 67: ...L Crank Case Cover Kick Starter Continuously Variable Transmission 7 0 L crank case cover...

Page 68: ...Drive face boss outer diameter 23 980 23 993 0 9441 0 9446 23 960 0 9433 Drive belt width 22 0 8661 20 5 0 8071 Weight roller outer diameter 10 95 20 05 0 4311 0 7893 19 5 0 7677 Clutch outer and inn...

Page 69: ...gasket and install a new gasket and dowel pin L Crank Case Cover Removal Loosen the kick starter pedal bolt Remove the kick starter pedal Remove the cover side cooling hose Loosen the L crank case co...

Page 70: ...ission Tighten the L crank case cover bolt Assemble the cooling hose to the cover Install the kick starter pedal and tighten bolts Torque value 2 2kg m 22N m 16ft Ib Feed the DAELIM genuine oil to the...

Page 71: ...oval Remove the L crank case cover 7 2 Remove the kick starter spring from the kick return stopper plate on the L crank case cover Remove the kick starter spindle Remove the kick driven gear Remove th...

Page 72: ...rter driven gear Disassemble the kick starter idle shaft Kick Starter Inspection Check the kick starter spindle for wear or damage Check the return spring for defects or damage Check the kick starter...

Page 73: ...Case Cover Kick Starter Continuously Variable Transmission Check the kick starter driven gear for wear and damage Check the friction spring for defects and damage 7 6 Friction spring Kick starter driv...

Page 74: ...ith the L crank case cover groove and assemble Match the kick starter spindle with the idle gear punch mark and assemble Hold and turn in reverse the kick return spring arm Assemble the kick stopper p...

Page 75: ...ven pulley to the drive shaft As shown in the right side figure turn the movable driven face clockwise and assemble the drive belt to the driven pulley while widening the driven pulley belt contact pa...

Page 76: ...Assemble the clutch outer to the drive shaft Fix the clutch outer with the universal holder and fasten with the setting nuts Torque value 5 5kg m 55N m 40ft Ib Tool Universal holder Assemble the L cr...

Page 77: ...r wear or damage Check the weight roller outer diameter Service limit 19 5mm 0 767in Movable Drive Face Assembly Supply grease on the inner side of the movable drive face boss part Assemble oil seal i...

Page 78: ...semble the movable drive face boss and the movable drive face to the crank shaft Assemble the assembly drive belt to the crank shaft Tighten the drive pulley nut with a drive holder Torque value 5 5kg...

Page 79: ...7 7 Use a universal holder to hold the clutch outer and remove the clutch outer after disassembling the 12mm flange nut Remove the movable driven face and the clutch from the drive shaft Driven Face D...

Page 80: ...r Remove the guide roller and its pin Remove the movable driven face Remove the O ring from the movable drive face Remove the oil seal from the movable driven face Remove the inner bearing Seal collar...

Page 81: ...sure the free length of the driven face spring Service limit 97 23mm 3 822in Check the clutch outer for wear or damage Measure the inner diameter of the clutch outer Service limit 120 5mm 4 736in Chec...

Page 82: ...ck the guide globe for wear or damage Check the oil seal for wear damage or other defects Driven Face Assembly Assemble the outer bearing to the movable driven face NOTE Insert the circlip into the gr...

Page 83: ...ndle until the lock nut can be installed Clamp the clutch spring compressor in a vise and tighten the lock nut to the specified torque using the lock nut wrench Remove the spring compressor Torque val...

Page 84: ...Variable Transmission Assemble the clutch outer Hold the clutch outer and tighten nuts with the prescribed torque Torque value 5 5kg m 55N m 40ft lb Tool Universal holder Assemble the drive face Asse...

Page 85: ...Generator Starter Clutch 8 0...

Page 86: ...d without removing the engine Specifications Item Standard value service Limit Starter driven gear O D 39 622 39 635 1 5599 1 5604 39 53 1 556 I D 32 000 32 025 1 2578 1 2588 32 10 1 2618 Reduction ge...

Page 87: ...e 3 shroud R L setting bolts Loosen the shroud L setting screw Remove the shroud R L Install in the reverse order of removal A C Generator Removal Remove the following parts Luggage box 4 5 Body cover...

Page 88: ...Tool Fly wheel puller holder Remove the woodruff key from the crankshaft Stator Removal Installation Loosen the pulse generator screw and remove the pulse generator Loosen the 3 stator setting screws...

Page 89: ...ighten the rotor bolts after fixing the flywheel with the holder Tool Flywheel holder Torque value 5 5kg m 55N m 40ft lb Connect the A C generator wire Assemble the cooling fan with bolts Assemble shr...

Page 90: ...l seals if necessary Starter Reduction Gear Remove the starter reduction gear and shaft Inspection Check the reduction gear for wear or damage Measure the inner diameter of the gear Service limit 12 1...

Page 91: ...etting bolts Assemble the A C generator 8 2 Assemble the R L shroud 8 2 Assemble the luggage box 4 5 Assemble the body cover 4 6 Starter Clutch Removal Remove the shroud 8 2 Remove the A C generator 8...

Page 92: ...her Remove the starter driven gear Check the starter driven gear and starter clutch for proper operation Remove the starter clutch Inspection Check the starter driven gear for wear of damage Measure t...

Page 93: ...ghten the starter driven gear with lock nuts Torque value 9 0kg m 90N m 65ft lb Tool Special socket 12 7 28 120 Assemble the washer Assemble the R crank case cover 8 4 Assemble the A C generator 8 2 A...

Page 94: ...diameter 11 982 12 000 0 4717 0 4724 11 950 0 4705 Cam height IN 33 835 33 995 1 321 1 3384 33 625 1 3234 Camshaft EX 33 984 34 144 1 380 1 3443 33 765 1 3293 Camshaft inner diameter 15 005 15 018 0 5...

Page 95: ...s Faulty hydraulic tappet Burned or bent valves Incorrect valve timing Broken valve spring Cylinder head Leaking or damaged head gasket Warped or cracked cylinder head Cylinder and piston Refer to Sec...

Page 96: ...R crank case cover Verify that the piston is located at the top dead center Make all camshaft lobes face downward If all camshaft lobes face upward rotate the crankshaft to the left for 1 turn 360 an...

Page 97: ...er arm and rocker arm shaft for wear or damage Measure the inner diameter of the rocker arm Service limit 12 060mm 0 4748in Measure the outer diameter of the rocker arm shaft Service limit 11 950mm 0...

Page 98: ...Removal Remove the engine from the frame section 5 Remove the camshaft Remove the cylinder head from the cylinder Remove the gasket dowel pin and cam chain guide from the cylinder Cylinder Head Disas...

Page 99: ...he valve spring Service limit 36 90mm 1 4528in NOTE Clearance Between Valve Steam and Guide Check the valve for bend seizure or damage and check the stem for abnormal wear Insert the valve into the va...

Page 100: ...the service limit replace the valve Valve Guide Replacement NOTE Heat all cylinder heads uniformly to approximate levels of 130 140 NOTE NOTE 9 7 After changing the valve guide make sure to adjust the...

Page 101: ...alve Seat Inspection Adjustment Remove carbon deposits from the valve Apply a light coating of prussian blue to the cylinder head valve seat Gently strike the valve with the valve guide reamer without...

Page 102: ...ndard value 0 8 1 0mm 0 031 0 039in Service limit 1 4mm 0 055in Valve Seat Cutter Repair the damaged valve seat by using valve seat cutters and grinders NOTE Valve Seat Repair If the seat surface is r...

Page 103: ...at Gently strike the valve with a valve guide reamer to check the status of contact without turning the valve If the contact surface is too high grind the surface with a 37 cutter and finish to the pr...

Page 104: ...acing the cylinder head Assemble the spring retainer Compress the valve spring and install the valve cotter NOTE Tool Valve spring compressor 9 11 Do not excessively press and turn the valve to set it...

Page 105: ...chain tensioner and assemble pivot bolts Torque valve 1 0kg m 10N m 7ft lb Assemble spark plugs Torque valve 1 1kg m 11N m 8ft lb Cylinder Head Installation Clean the gasket marks from the cylinder he...

Page 106: ...side of the rocker arm shaft check the camshaft assembly for abnormal condition and place it on the cylinder head Put the cam chain on the cam sprocket Slowly turn the crankshaft to the left and alig...

Page 107: ...der nut and bolts and tighten them driving with 2 or 3 times Torque values 8mm nut 2 9kg m 29N m 21ft lb Remove the sealing screws and washers from the cam chain tensioner lifter Turn the tensioner sh...

Page 108: ...screws to the tensioner lifter Torque values 0 4kg m 4N m 3ft lb Fill clean engine oil into the operating parts of the cylinder head Adjust the valve clearance 3 5 Remove oil from the cylinder head co...

Page 109: ...Cylinder Piston 10 0 O I L O I L Piston pin clip Piston top ring Piston pin clip Piston 2ND ring Piston Oil ring...

Page 110: ...ylinder Excessive carbon build up Low octane fuel Item Standard value Service limit Inner diameter 56 000 56 010 2 2047 2 2051 56 100 2 2087 Cylinder Cylindricality 0 050 0 002 Out of roundness 0 005...

Page 111: ...nner diameter Service limit 56 100mm 2 2087in Measure the piston outer diameter Subtract the piston outer diameter value from the cylinder inner diameter value and measure the clearance between the cy...

Page 112: ...ing Remove the piston ring NOTE Check the clearance between the piston ring and groove Service limit Top 0 110mm 0 0043in Second 0 080mm 0 003in Oil 0 280mm 0 0110in Check the piston for wear or damag...

Page 113: ...r diameter of the piston pin hole Service limit 15 038mm 0 5920in Measure the outer diameter of the piston pin Service limit 14 960mm 0 5890in Check the clearance between the piston and piston pin Ser...

Page 114: ...sembling verify the ring is rotating smoothly 10 5 Top ring Second ring The ring is easily broken Take necessary precautions not to break it and not to damage the piston during assembly Assemble the r...

Page 115: ...the cam chain guide by aligning the tangs with the cylinder slots Assemble the cylinder head 9 10 6 Let the IN mark face towards the intake valve side Place a piece of cloth over the crank case to pr...

Page 116: ...MEMO...

Page 117: ...Transmission Crankshaft Crank Case 11 0 R Crank Case Crankshaft L Crank Case...

Page 118: ...n 7 Clutch driven pulley section 7 The following parts must be removed prior to changing the L crank case Follow the removal procedure specified in each section Transmission section 11 Rear brake sect...

Page 119: ...mover shaft Remover head Sliding weight Assembly shaft Troubleshooting Engine noise Connecting rod big and small ends loose Crank pin bearing loose Engine started but unable to move out Transmission d...

Page 120: ...e the rear wheel section 13 Loosen the 8 transmission cover bolts Remove the transmission cover Remove the gasket and dowel pin Remove the drive shaft from the transmission cover by using a hydraulic...

Page 121: ...Crank Case Check the final shaft for wear or damage Check the countershaft for wear or damage Remove the final shaft and the countershaft comp Inspection Check the drive shaft for wear or damage 11 4...

Page 122: ...special tools to push in the bearing into the case Tools Driver handle A Outer Driver Driver pilot Check the L crank case oil seal for wear or damage 11 5 Installation Install the drive shaft on the...

Page 123: ...ve the parts to disassemble crank case Loosen the seven R L crank case setting bolts Install a new gasket and dowel pin Tighten the transmission cover with setting bolts Assemble the rear wheel sectio...

Page 124: ...y Remove the R crank case cover 8 4 Remove the L crank case cover 7 2 Remove the crankshaft from the R crank case by using a crankshaft remover If there is the bearing left in the L crank case use the...

Page 125: ...hly Check the outer race to see if it is accurately pressed into the case If the outer race is excessively loose or is loosely pressed into the case remove it and replace with a new one Inspection Pla...

Page 126: ...g Driver Attachment 32 35mm Countershaft bearing Driver Attachment 42 47mm Pilot 20mm Install a new final shaft oil seal 11 9 Crankshaft Assembly Apply clean engine oil to the new R crankshaft bearing...

Page 127: ...R crank case to the L crank case NOTE Tighten the crank case bolts Torque value 1 0kg m 10N m 7ft lb Install the R L crank case cover Assemble the disassembled parts Install the engine on the frame 1...

Page 128: ...s section describes how to remove and maintain front wheels front fork and steering system For information on the front brake system refer to section 14 Place a jack underneath the engine to support t...

Page 129: ...wheel installed incorrectly Front wheel wobbling Bent rim Worn front wheel bearings Faulty tire Axle nut not tightened properly Wheel out of balance Soft suspension Weak fork springs Insufficient flui...

Page 130: ...r properly to prevent brake fluid from leaking If the master cylinder is dropped upside down air may enter the hydraulic system Fix it to the vehicle while maintaining the correct assembled location U...

Page 131: ...nd A to the inside surface of the grip and to the clean surface of the left handle bar Wait 3 6 minutes and install the grip Bond A ROYAL BOND 1300 NOTE Clean the bonding surface to avoid oil grease o...

Page 132: ...over Speedometer cable Speedometer gear box Axle nut Screw Insert the brake cable speedometer cable throttle cable into the handle cable guide Install the rear handle cover to the steering handle Conn...

Page 133: ...im runout with a dial gauge Service limit Radial 2 0mm 0 08in Axial 2 0mm 0 08in Bearing inspection Manually turn the bearing inner race and replace if it makes noise or is worn Check if the bearing o...

Page 134: ...OTE Tools Bearing remover head Bearing remover Apply sufficient amount of grease to the bearing Insert the right bearing with its seal surface facing outside Do not tilt the bearing Insert accurately...

Page 135: ...Assembly Apply grease to the right side dust seal rim Install the right side dust seal Install the brake disk Install disk nuts Torque value 1 5kg m 15N m 11ft lb Install the right side collar 12 8 R...

Page 136: ...s Insert the disc taking precautions not to damage the pad and assemble the wheel Align the slots of the speedometer gear with the tangs of the left fork slider Insert the front axle into the speedome...

Page 137: ...the fork tube Disassembly Remove the fork tube cap bolt NOTE Wrap the bottom case with a piece of cloth and remove the socket bolt 12 10 Loosen the fork tube cap bolt but do not remove it If the screw...

Page 138: ...the socket bolt turns idle but cannot be removed temporarily assemble the spring and the fork tube cap bolt first Hold the bottom case firmly with a vise taking precautions not to distort or damage it...

Page 139: ...ear Replace defective parts with new ones Service limit 230 8mm 9 087in Place the fork tube on a V block and measure deflection with a dial gauge Service limit Replace if the deflection is greater tha...

Page 140: ...ols until the attachment groove of the bottom case set ring is exposed Tools Fork seal driver Fork seal driver body Install the set ring Accurately assemble the set ring to the bottom case Install the...

Page 141: ...ly Installation Assemble the front fork to the steering stem Assemble the front fork setting bolt Torque value 1 1kg m 11N m 8ft lb Install the following parts Front wheel 12 5 Brake caliper 14 6 Fron...

Page 142: ...t wheel 12 5 Front fork 12 10 Loosen the 2 headlight stay bolts and remove the stay Remove the front wiring and coupler Remove the steering stem lock nut Tools Lock nut wrench Extension bar Remove the...

Page 143: ...steering bottom cone race dust seal dust seal washer Remove the top ball race and the bottom ball race into the steering head pipe Tool Ball race driver Assembly Insert the top ball race and the bott...

Page 144: ...after applying grease thereto Install the top cone race and the top thread nut over the steering head Tighten the top thread nut completely and loosen by 1 8 turn Torque value 0 2 0 3kg m 2 3N m 2ft l...

Page 145: ...nt Fork Steering Readjust and clamp the speedometer cable Install the front fork Install the headlight stay Install the following parts Front fork Front wheel Main switch Handle bar Front cover 12 18...

Page 146: ...ean the brake drum and replace the brake shoe Item Standard value Service limit Axle shaft run out 0 2 0 008 Rear wheel rim runout Radical 2 0 0 08 Axial 2 0 0 08 Rear brake drum inner diameter 116 0...

Page 147: ...sure incorrect Faulty tire Bent rim Loose wheel bearing Swing arm bushing worn Wheel out of balance Soft suspension Weak springs Shock absorber improperly adjusted Hard suspension Shock absorber impro...

Page 148: ...Loosen the brake arm setting bolts and remove the spring Remove the muffler 4 9 Loosen the rear wheel axle nut Remove the lock washer Remove the rear wheel Inspection Turn the wheel and check the rim...

Page 149: ...emble the brake cable cable and adjust nuts Install the spring on the brake arm and tighten with setting bolts Rear Brake Remove the rear wheel Inspection Measure the brake drum of inner diameter Serv...

Page 150: ...e it Remove the shoe spring from the brake shoe Remove the brake cam Assembly Apply small amount of grease to the brake cam and anchor pin Assemble the brake cam Assemble the brake shoe and spring Ass...

Page 151: ...ng Tools Rear cushion compressor attachment Rear compressor Fix the bottom metal and loosen the lock nut Remove the bottom metal Remove the lock nut bottom metal stopper rubber spring and spring guide...

Page 152: ...per joint and tighten the lock nut Torque value 2 0kg m 20N m 14ft lb Tools Rear compressor Rear cushion compressor attachment Installation Assemble the rear cushion Tighten the top and bottom of the...

Page 153: ...MEMO...

Page 154: ...tisfactory Air in the brake system Moisture in brake fluid Brake pad and disk contaminated Caliper piston seal worn Master cylinder piston seal worn Brake pad worn Caliper inside contaminated Unsatisf...

Page 155: ...Repeat the above operation until there is no air flowing out of the bleeder hose Squeeze the bleeder valve and operate the brake lever to check the ingress of air 14 2 A contaminated disk or pad redu...

Page 156: ...es coming out of the bleeder valve Check the fluid level often and add fluid if the fluid level is near the lower level If no air leaks out of the bleeder hose operate the brake lever to check the pre...

Page 157: ...press the piston to return to the original position Remove the pad pin bolt lock plate and brake pad Verify that the pad spring is installed in specific position Install a new brake pad lock plate an...

Page 158: ...ft lb Install pad pin bolt Torque value 1 8kg m 18N m 13ft lb Bend the lock plate tangs and fix the pad pin bolt Brake Disk Inspection Measure the thickness of the disk Torque value 3 0mm 0 1181in Che...

Page 159: ...brake fluid adhere to the parts because it can damage the painted surface Wind the hose joint with cloth to prevent the brake fluid from leaking Clean the removed parts with the brake fluid and make...

Page 160: ...e the specified brake fluid Rear bracket Slide pin pin bush Dust seal Piston seal Piston Tongued washer pin hanger Pad spring Pad Front brake caliper Apply the silicone grease to the pin bush Connect...

Page 161: ...master cylinder reserve master piston with the recommended brake fluid Master cylinder inspection Check the piston periphery for kink or scratch Check the primary and secondary cups for wear Brake fl...

Page 162: ...indicate the side wear of the cylinder by the direction of the piston contacting face In this case the master cylinder must be replaced also Replace the piston spring cups and snap ring as a set Be su...

Page 163: ...washers and the hose bolt Torque value 3 5kgf m 35N m 25ft 1b Connect the front brake stop switch wire Fill the brake fluid and bleed air Install the rear handle cover 4 8 Install the front handle cov...

Page 164: ...ime specified on top of the battery Use a tester to check the charging status open voltage Do not replace the battery with a general type battery Check the charging system in sequence based on trouble...

Page 165: ...oken or shorted wire or connection Faulty voltage regulator Faulty rectifier Faulty alternator 15 2 Measure battery current leakage 15 5 Check the regulator rectifier 15 7 Battery is failing Open circ...

Page 166: ...Turn off the main switch and remove the earth cable from the battery Connect an ampere meter between the battery terminal and the earth cable and check current when the main switch is turned off NOTE...

Page 167: ...the headlight NOTE Start engine turn the light switch on set the dimmer switch to Hi and check voltage between the blue and green lamp side NOTE Controlled voltage 14 5 0 5V NOTE Tester PVA multi tes...

Page 168: ...e main switch is turned Lead black ON between the black and green Regulator Rectifier Inspection If the inspection of the harness side proves to be satisfactory check the regulator rectifier coupler f...

Page 169: ...Disconnect the 4P coupler of the generator cord Measure the resistance between the yellow leads Resistance value 1 0 1 5 20 68 Measure the resistance between the yellow leads and the engine earth If t...

Page 170: ...current flowing overvoltage may occur on the unit leading to circuit damage Always turn off the main switch prior to servicing Ignition timing cannot be adjusted because the ignition system is of CDI...

Page 171: ...nnected CDI unit connector 4 Open circuit or poor connection in ground cord of the CDI unit 5 Faulty ignition system control circuit such as side stand switch 6 Faulty peak voltage adaptor 7 Faulty CD...

Page 172: ...ter Tool CDI tester NOTE Replace defective CDI unit 16 3 Inspection item Terminal Standard value Pulse generator Blue yellow and green 90 150 20 68 Ignition coil primary coil Black yellow and earth 0...

Page 173: ...the ignition coil spark plug cap and earth Standard value 7 3 11K If the measured value deviates from the prescribed value remove the plug cap from the high tension cord and measure the secondary res...

Page 174: ...C generator blue yellow wire connector Connect the peak voltage adaptor probes to the pulse generator wire terminal of the wire harness side connector and ground Crank the engine with the kick starter...

Page 175: ...ne speed greater than 3 900 rpm it indicates the advance system is correct 16 6 As the system uses the CDI unit the ignition timing need not be adjusted Check the ignition system if the ignition timin...

Page 176: ...dlight 18 2 Remove the coupler of the side stand switch Remove the L side cover 4 5 Loosen the side stand switch mounting 2 bolts Release the wire clamps and remove the side stand switch Installation...

Page 177: ...MEMO...

Page 178: ...rt causing serious injury The starter motor can be maintained without removing the engine from the vehicle A weak battery may be unable to turn the starter motor quickly enough or supply adequate igni...

Page 179: ...at starter magnetic switch coupler Faulty starter magnetic switch Disconnect starter magnetic switch coupler and check the starter magnetic switch coil ground wire 17 7 Connect the starter magnetic s...

Page 180: ...he starter can be assembled correctly later Loosen the starter motor case bolts and remove the motor cover Inspection Check for continuity of the starter motor case Between cord terminal and bracket n...

Page 181: ...utator for Damage or abnormal wear Replace with a new one Discoloration of the commutator bar Replace with a new one Metallic debris between commutator bars Clean it off Check for continuity between p...

Page 182: ...rear bracket mark and install the case Insert the thrust washer 0 5t thrust washer 0 2t slip washer and thrust support CAUTION The sliding surfaces of the brushes can be damaged if they are not instal...

Page 183: ...indicates operation condition is satisfactory Earth Circuit Inspection Disconnect the green yellow wire connector of the starter magnetic switch If power is connected between the harness terminal and...

Page 184: ...rry out continuity test on circuits or parts to diagnose electric systems The continuity test on normal parts can be carried out without removing the parts from the vehicle Simply disconnect the wires...

Page 185: ...replace the light bulb Install in the reverse order of removal Front Winker Bulb Replacement Remove the front handle cover 4 8 Remove the R L winker light bulb socket from the handle cover and replac...

Page 186: ...the speedometer setting screws and remove the front wheel side speedometer Remove the speedometer cable from the meter and remove the speedometer To disassemble the meter release the hook from the me...

Page 187: ...e front handle cover 4 8 Loosen the headlight and remove the handle bar switch terminals Carry out inspection based on the following table 18 4 COLOR BLACK WHITE GREEN RED BLACK TERMINAL IG E BAT HO L...

Page 188: ...Open the seat and remove the retainer and fuel sensor from the fuel tank Fuel gauge Turn the ignition switch on Remove the fuel tank 5 3 NOTE Check the fuel gauge while moving the fuel sensor float u...

Page 189: ...tery Check the sound quality for any abnormalities Clock The current time is displayed at the bottom of the combination meter If the time is incorrect make adjustments with the setting rubber Replacem...

Page 190: ...MP SWITCH Trunk Lamp Switch INSPECTION Release the seat lock with the main key open the seat Disconnect the trunk lamp switch check for continuity between the terminals TR L BAT BLACK RED COLOR TERMIN...

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Page 194: ...Wiring Diagram 19 1 19 Wiring Diagram 19...

Page 195: ...ged 2 Check spark plugs weak or no spark 1 Faulty spark plug 2 Contaminated spark plug 3 Faulty CDI unit 4 Faulty A C generator 5 Disconnected or shorted high tension cord 6 Disconnected or shorted ig...

Page 196: ...arburetor for clogging Clogged 1 Unsatisfactory Carburetor maintenance 5 Remove spark plugs Contaminated or 1 Unsatisfactory plug maintenance discolored 2 Plugs with incorrect heat value used 6 Check...

Page 197: ...ng 4 Check sparks Weak or intermittent 1 Carbon deposited on spark plugs sparks or spark plugs contaminated 2 Faulty CDI unit 3 Faulty ignition coil 4 Faulty A C generator 5 Disconnected or shorted hi...

Page 198: ...r worn 3 Drive pulley bearing worn 5 Abnormal noise or odor 1 Oil or grease spilled on the drive belt and inside pulley 2 Drive belt worn 3 Weak drive face spring 4 Driven pulley bearing worn or seize...

Page 199: ...e and cam contact surface worn 4 Brake drum worn 2 Brake noise 1 Brake shoe worn 2 Foreign matter in the brake lining 3 Brake drum and shoe contact surface curved 3 Poor braking 1 Brake wire defective...

Page 200: ...Ignition switch ON 1 Operate the turn signal to check Signal continuously 1 Fuse cut the battery circuit operates dim or does 2 Battery weak or totally discharged not operate at all 3 Ignition switch...

Page 201: ...ot activated 2 Rotor winding damaged or shorted 3 Starter motor subwire damaged 4 Terminal loose 1 Wire harness damaged Starter Motor turns slow or fails to crank motor 1 Operate the turn signal to ch...

Page 202: ...MEMO...

Page 203: ...2002 11 PRINTED 1999 11 PUBLICATION SERVICE MANUAL NO COPY...

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DAELIM NS125III - SERVICE, Service Manual

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