Yamabiko Echo SRM-2620ES Service Manual Download Page 53

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CUTTER DRIVE SYSTEM

SRM-2620ES, SRM-2620TES
T262XS, C262S
T262TXS, C262TS

7 CUTTER DRIVE SYSTEM on SRM-2620TES, C262TS and T262TXS

( A ) PTO (Driven) Shaft

( B ) Ball bearing

( C ) Retaining ring

( D ) Washer

( E ) Blade fi xture

( F ) Gear set

( G ) Cup plate

( H ) Gear case

( J ) O-ring

( K ) Drive shaft

( L ) Drive shaft housing

(Main pipe)

( M ) Adaptor plate

( N ) Cover plate

(L)

(K)

(H)

(A)

(D)

(C)

(E)

(B)

(F)

(C)

(B)

(J)

(G)

(M)

(C)

(N)

Summary of Contents for Echo SRM-2620ES

Page 2: ...rences We recommend you make use of Operator s Manual and Parts Catalogue together with this manual when servicing We are constantly working on technical improve ment of our products For this reason technical data equipment and design are subject to change without notice All specifications illustra tions and directions in this manual are based on the latest products information available at the ti...

Page 3: ... adjust screw L mixture needle and H mixture needle 32 4 5 3 Adjusting carburetor 33 4 6 Testing carburetor 34 4 7 Inspecting crankcase pulse passage 35 4 8 Inspecting metering lever height 35 4 9 Inspecting inlet needle valve 36 4 10 Inspecting diaphragm and others 36 4 11 Replacing throttle cable and control parts 37 4 12 Checking and adjusting throttle cable 37 5 CLUTCH SYSTEM 38 5 1 Removing c...

Page 4: ... ES Effortless Start S Soft start Rope diameter x length mm in 3 5 x 850 0 14 x 33 5 Fuel Type Premixed two stroke fuel Mixture ratio 50 1 2 Petrol Minimum 89 octane Two stroke engine oil ISO L EGD ISO CD13738 JASO FC FD Tank capacity Full tank capacity 0 6 20 3 L U S fl oz Usable capacity 0 52 17 6 Clutch Type Centrifugal 2 shoe pivot Handle Type Front Crescent loop w cushion grip U handle w inte...

Page 5: ...il resistance Ω 960 1 000 Pole shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 2 900 r min BTDC 9 at 6 500 r min BTDC 22 at 8 500 r min BTDC 33 at 11 000 r min BTDC 19 Carburettor Test Pressure minimum MPa kgf cm2 psi 0 05 0 5 7 0 Metering lever height mm in 0 66 0 03 lower than diaphragm seat Tool to adjust mixture needles Screwdriver 2 5 mm P N X603 000050 D shaped tool S P N X645 000...

Page 6: ...Adjust L mixture needle to maximum idle speed 3 3 Set idle maximum speed w TAS r min 4 000 4 Set idle speed by turning L mixture needle ACW r min 3 000 2 700 3 500 5 Find WOT maximum speed Adjust H mixture needle to maximum WOT speed 6 WOT setting r min Turn H mixture needle ACW to decrease WOT speed by 20 30 WOT engine speed with standard equipment 9 000 10 000 10 400 11 800 r min 11 000 11 900 W...

Page 7: ...utch shoe M6 70 110 7 11 60 95 Cylinder cover M5 30 45 3 4 5 25 40 Engine Crankcase M5 70 110 7 11 60 95 Cylinder M5 70 110 7 11 60 95 Muffler M5 70 110 7 11 60 95 Muffler cover Starter side M5 25 35 2 5 3 5 22 30 Crankcase side M5 30 45 3 4 5 25 40 Other Cutter fastener LM10 280 320 28 32 245 280 Regular bolt nut and screw M3 6 10 0 6 1 5 9 M4 15 25 1 5 2 5 13 22 M5 25 45 2 5 4 5 22 40 M6 45 75 4...

Page 8: ...linder bore When plating is worn and aluminum can be seen B Piston outer diameter Min 33 91 1 335 C Piston pin bore Max 9 035 0 3557 D Piston ring groove Max 1 6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston pin outer diameter Min 8 98 0 3535 G Piston ring width Min 1 45 0 057 H Piston ring end gap Max 0 5 0 02 K Con rod small end bore Max 12 025 0 4734 L Crankshaft runout Max 0 03 0 0...

Page 9: ...e 10 897702 30131 Piston pin tool Removing and installing piston pin Use 8mm dia adapter 11 91004 Module air gap gauge Adjusting pole shoe air gaps 12 897563 19830 Metering lever gauge Measuring metering lever height on carburettor 13 897712 04630 2 pin wrench Removing and installing pawl carrier 14 897726 09130 Oil seal tool Installing crankcase oil seals 15 897800 79931 Spark tester Checking ign...

Page 10: ...XS C262TS 2 STARTER SYSTEM A A Starter case B Starter grip C Rope guide D Rewind spring d End of rewind spring E Rope reel F Power spring f Top end hook of power spring G Pawl catcher H Starter pawl J Spring K Pawl carrier L Dust cover B D d C E F f G H J K L ...

Page 11: ...Disassembling starter assembly 1 Remove bolts A and muffler cover B 2 Remove bolts C and cylinder cover D 3 Remove bolts E washers F and bolt K un der fuel tank Remove fuel tank guard G and fuel tank T 4 Remove bolts H and starter assembly J from unit B D E H A C F J G K T ...

Page 12: ...notch m as shown 6 Rotate rope reel M clockwise to release ten sion of rewind spring 7 Remove tapping screw L 8 Remove pawl catcher N and power spring P 9 Remove rope reel M from starter case S slowly taking care of rewind spring R not to jump out WARNING DANGER Wear eye protection and take care when re moving starter drum because rewind spring may unwind suddenly and cause injury to eyes and body...

Page 13: ...ying WARNING DANGER Do not use flame in an area where gasoline is stored or flammable gases may exist 4 Make a knot D at end of starter rope and pass the starter rope through hole of rope reel then press the knot D into reel well as shown 5 Pass the other end of starter rope through rope guide on starter case then pass starter rope through starter grip and clip B Make a knot as shown 6 Tighten kno...

Page 14: ...d B as shown Repeating this procedure several times wind rewind spring smaller than inner diameter of starter case 3 Retain rewind spring with pliers as shown Set rewind spring in starter case hooking the outer hook a3 to the holder c of starter case C 4 Apply small amount lithium based grease to outside of rewind spring A a1 a2 B C a3 c 2 3 Replacing rope guide If rope guide is worn out or damage...

Page 15: ... strongly pressed against case 3 Spring should fall into starter case and re tainer is detached by itself NOTE Apply Lithium based grease in starter case 1 Assemble rope reel A engaging hook a1 of rope reel with hook B of rewind spring 2 Check for proper engagement of rewind spring and rope reel by turning rope reel A clockwise and counterclockwise 3 Install power spring C assembling hook c1 of po...

Page 16: ...vent it from rewinding and pull out starter grip to take the rope slack 7 Pull starter several times to check rewind spring tension If starter is not rewinding fully rotate rope reel one more turn counterclockwise following above step 6 8 Pull out starter rope all the way and check that rope reel can be rotated an additional half or more turn counterclockwise as shown to prevent rewind spring from...

Page 17: ... rotated further 5 Remove starter pawl assembly rotating counter clockwise with 2 pin wrench 897712 04630 D as shown NOTE Do not use power tools Otherwise piston damage may occur 6 Remove E ring E from pawl and replace pawl and spring 7 Insert spring B to pawl and push pawl into hole near mark R Install E ring E 8 Install starter pawl assembly onto crankshaft rotating clockwise by hand 9 Tighten s...

Page 18: ...2TXS C262TS 2 6 Replacing starter pawl continued NOTE Insert rib h of starter case to gap f be tween crankacse and dust cover Insert rib j1 of starter case to hole g1 of crankacse Insert rib j2 of starter case to hole g2 of crankacse as shown j2 j1 h g1 f g2 ...

Page 19: ...OK S T Not OK S T Not OK Not OK S T OK S T Not OK Pole shoe air gaps Replace Not OK OK Not OK S T OK OK Replace ignition coil Leads connections Not OK OK OK Not OK S T Repair Replace Not OK Remedy Inspect Not OK Flywheel key OK R T End Not OK Flywheel magnet Replace Not OK R T Not OK OK OK Replace ignition coil and or inspect other systems Replace flywheel OK OK Adjust pole shoe air gaps Inspect f...

Page 20: ...orange or red continue with further inspec tion DANGER Do not test near spark plug hole without spark plug installed otherwise there is a chance to ignite fuel mixture inside cylinder Do not touch metal parts of spark tester while performing the test to avoid receiving electrical shock DANGER Do not check spark in area where gasoline is spilled or flammable gases may exist 3 3 Inspecting spark plu...

Page 21: ...r multi meter to primary lead C of ignition switch side as shown 4 Connect the other probe to ground lead D of ignition switch side as shown 5 When ignition switch is in RUN position tester should indicate infinite resistance 6 When ignition switch is in STOP position tes ter should show that the circuit is in conducting state closed circuit 7 If ignition switch is defective replace with a new one...

Page 22: ...r rear handle grip half D from drive shaft housing 3 Disconnect primary lead coupler P and ground lead coupler Q Disconnect throttle cable from carburetor 4 Disconnect end e of throttle cable E from throttle trigger G 5 Remove throttle trigger G with torsion spring H and throttle lockout lever J with torsion spring K 6 Remove ignition switch L with leads corrugat ed tube M and throttle cable E 7 P...

Page 23: ...ut longer arm k of torsion spring in throt tle lockout lever J 12 Connect end e of throttle cable E to throttle trigger G Install throttle trigger G hooking tor sion spring H on the post W as shown 13 Install throttle cable E and corrugated tube M to control handle grip half as shown NOTE Set grooves of corrugated tube M on ribs S of control handle grip half 14 Install right handle grip half on dr...

Page 24: ...switch E with leads corru gated tube F and throttle cable D 5 Remove corrugated tube F from handle shaft together with cable and leads 6 Pull out throttle cable from corrugated tube 7 Pass throttle cable through corrugated tube of new ignition switch 8 Route leads G behind ignition switch E and then install ignition switch to grip half Route leads through grooves and ribs of grip half as shown 9 I...

Page 25: ...pler and ground lead coupler 3 6 Inspecting ignition coil resistance 1 Connect one probe of Ohm meter or multimeter to spark plug cap coil A 2 Connect the other probe to cylinder B to mea sure secondary coil resistance Secondary coil resistance should be in the range of 960 to 1 000 Ω 3 If the meter reading indicates infinite resistance remove spark plug cap and spark plug cap coil and measure res...

Page 26: ...t air gap Refer to 3 9 Setting pole shoe air gaps Install fan cover cylinder cover and muffler cover 8 Connect spark plug cap A to spark plug 3 7 Replacing spark plug cap and coil 1 Disconnect spark plug cap A from spark plug 2 Apply some oil in spark plug cap A for easy re moval from high tension lead B 3 Pull spark plug cap away from high tension lead 4 Inspect spark plug cap coil C for correct ...

Page 27: ...ove Module air gap gauge 91004 A or feeler gauge NOTE When air gap is too narrow contact with flywheel may result When the air gap is too wide spark is weak 3 10 Inspecting flywheel and key 1 Inspect magnetic force of flywheel using flux meter or bridging with a screwdriver as shown 2 If magnetic force is weak replace flywheel as follows 3 Install rope A into spark plug hole by hand to stop cranks...

Page 28: ...e with a new one if deformed 10 Wipe off oil from taper part of crankshaft and flywheel before assembling flywheel 11 Install woodruff key E into key groove h as shown in the picture NOTE If key groove is too tight file woodruff key before installation 12 Align flywheel cast groove h with woodruff key E on crankshaft 13 Insert flywheel H and tighten nut G to specified torque Refer to Service infor...

Page 29: ...et E Fuel line F Tank vent line G Fuel return line H Tank vent J Carburetor K Intake heat shield L Insulator plate boot M Insulator plate N Bellows holder O Intake bellows P Air cleaner cover R Form pre filter S Retainer pre filter T Air filter V Prevent plate W Air cleaner case X Intake gasket A B P T X V G D C O N M L K F E H R S J W ...

Page 30: ...ompressed air gun A blow air from engine side WARNING DANGER Wear eye protection when working with compressed air Eye damage can occur from flying particles 3 Replace air filter if heavily soiled or damaged 4 2 Checking fuel cap and fuel strainer 1 Remove fuel cap 2 Check fuel cap for cracks and gasket A for cuts or damage Replace defective parts as required 3 Pull fuel strainer B from fuel tank u...

Page 31: ...NOTE Tank vent prevents a vacuum from forming in fuel tank when fuel in fuel tank is being con sumed When pressure in fuel tank becomes too high tank vent releases the pressure 5 Remove tank vent D from tank vent line and connect pressure tester 6 Apply pressure approximately 0 05MPa 0 5 kgf cm2 7 psi make sure the pressure is stable in range of 0 1 0 4 kgf cm2 1 4 6 psi 7 If it is not in the rang...

Page 32: ...e B and tank vent line C Fuel strainer can be directly pulled out through grommet hole 3 Remove fuel line A fuel return line B tank vent line C and fuel line E from fuel line grom met D If line is defective replace with a new one 4 Adjust length as follows C A B Line A E Fuel line B Fuel return line C Tank vent line Black Transparent Black Length mm inch 207 8 15 80 3 15 85 3 35 Distance mm inch a...

Page 33: ...clip L second groove m1 on connec tor pipe M 8 Insert fuel line A with connector pipe M clip L and fuel pipe E in grommet D 9 Insert tank vent line C in grommet D 10 Set clip H on tank vent line C and connect tank vent G as shown 11 Install fuel return line B with connector pipe N in grommet D 12 Install grommet D with lines and fuel strainer to fuel tank as shown 13 Put tank vent G in place J of ...

Page 34: ... seconds and WOT for 50 seconds Adjust Idle speed screw to 3 000 200 RPM If engine does not run correctly after this adjust ment proceed to the next step 4 5 2 4 5 2 Initial setting Throttle adjust screw L mixture needle and H mixture needle Tools Required Small screwdriver with 2 5 mm blade P N G310 000050 electronic tachometer P N Y089 000094 A small D shaped tool 1 Turn L mixture needle B clock...

Page 35: ...ture needle CCW to decrease WOT engine speed by 20 30 RPM NOTE For SRM 2620ES T262XS C262S Nylon line length should be 190 mm without shield For SRM 2620TES T262TXS C262TS Nylon line length should be 285 mm without shield 6 Stop engine restart again and verify engine idle speed ranges from 2 700 to 3 500 RPM and ex pand and cut nylon line by shield knife and WOT engine speed ranges from 9 000 to 1...

Page 36: ... the reading does not drop check if purge bulb is defective or check metering lever height is too low according to 4 8 Inspecting metering lever height or inlet needle valve for sticking according to 4 9 Inspecting inlet needle valve 7 Remove fuel return line B and throttle wire from carburetor then remove carburetor from en gine With pressure tester attached submerge carburetor in suitable clean ...

Page 37: ...asket for misassembly or remove oil residue clogging pulse passages in intake insu lator and cylinder 4 Install gasket intake bellows and other remain ing parts to cylinder 4 8 Inspecting metering lever height 1 Remove metering diaphragm cover metering diaphragm and gasket 2 Check metering lever A height Metering lever height 0 1 to 0 25 mm 0 004 to 0 010 in lower than diaphragm seat 3 If necessar...

Page 38: ...mble inlet needle valve spring metering lever and pivot pin NOTE Make sure of metering lever installation as follows 1 Spring is seated in its hole at chamber floor 2 Spring is under dimple of metering lever 3 metering lever fork is holding inlet needle valve 4 10 Inspecting diaphragm and others 1 Check metering diaphragm A for hardening distortion or pin hole Replace it as required 2 Remove pump ...

Page 39: ...handle grip half 2 Remove throttle lockout N and throttle trigger O with torsion spring P throttle cable Q igni tion switch R and corrugated tube S from rear handle Check parts and replace with new one if defective 3 Pull out throttle cable Q from corrugated tube S Pass new throttle cable through corrugated tube Install all parts on rear handle Refer to 3 5 Replacing ignition switch E M K J G L H ...

Page 40: ...ES SRM 2620TES T262XS C262S T262TXS C262TS 5 CLUTCH SYSTEM A Fan cover B Ball bearing C Retaining ring D Clutch drum E Wave washer F Clutch shoe G Washer H Spring J Fan cover protector K Main pipe holder J G E F D C B C A H C K ...

Page 41: ...hers C paying attention direction as shown Valley side Mountain side Clutch side Fan cover side 5 1 Removing clutch shoes and springs 1 Remove muffler cover engine cover and fan cover 2 Install rope A into spark plug hole by hand to stop crankshaft rotation NOTE Do not use power tool Otherwise piston damage may occur 3 Rotate bolts B counterclockwise using 13 mm 0 51 in box wrench C or similar too...

Page 42: ...B 4 Clamp drive shaft housing holder bolt B with a vise NOTE Cover bolt with a cloth so as not to damage it 5 While holding fan cover with both hands pull and remove main pipe holder A out straight NOTE Apply oil around main pipe holder A so that it can be removed easily 6 Replace the defected mount with new one 7 Remove retaining ring C from clutch drum shaft D 8 Push out clutch drum E using pres...

Page 43: ... diameter of adapter b 27 5 mm 3 Check bearings for rotating smoothly 4 Install retaining ring C in groove of fan cover bore 5 Push center d of clutch drum D in ball bear ings with press machine until it bottoms 6 Make sure clutch drum rotates freely 7 Install retaining ring E in groove of crutch drum shaft 8 Reinstall fan cover and other parts A C B D B b E d 5 4 Removing clutch drum bearings 1 R...

Page 44: ...der B Intake heat shield C Exhaust heat shield D Cylinder gasket E Piston ring F Piston G Needle bearing H Piston pin J Snap ring K Oil seal L Crankcase M Crankcase gasket N Ball bearing P Crankshaft assembly R Thrust washer S Woodruff key A D B C K L M N P N L R E J F J G H K S ...

Page 45: ...mbustion chamber and exhaust port piston crown and muffler for carbon deposits NOTE Compression pressure varies with volume of compression gauge tip occupying cylinder combus tion chamber If gauge tip volume is considerably different from spark plug volume it is recommended to measure and note compression pressure of brand new engines as standard pressure in advance 6 2 Cleaning cooling air passag...

Page 46: ...ort always posi tion piston at Top Dead Center TDC to prevent carbon from entering cylinder Do not use metal tool and be careful not to scratch piston or cylin der 4 Remove exhaust guide A exhaust gasket B and spark arrester screen C from muffler D 5 Remove carbon deposits from spark arrester screen C and exhaust gasket B If screen has heavy deposits replace with new one 6 Reinstall muffler D with...

Page 47: ...i per minute is allowed 8 If the reading constantly drops use soapy wa ter to locate leakage Leakage may occur from the cylinder base crankcase seal or oil seal 9 Then apply negative pressure approx 30 kPa 0 3 kgf cm2 4 4 psi by pressure tester and leave for 30 seconds 10 If the reading drops leakage may occur from oil seal Inspect oil seal for damage or wear 11 Remove plugs from exhaust port and ...

Page 48: ... piston pin tool 897702 30131 C with adapter D stamped 8 on an end 5 Inspect needle bearing and spacers and re place if wear or discoloration is noted 6 7 Replacing needle bearing NOTE Always use needle bearing tool 897705 11520 to replace needle bearing on small end of connecting rod 1 Put small end on base A of needle bearing tool and fit needle bearing B in hole a of the base 2 Push needle bear...

Page 49: ...as a set if damaged 5 Inspect connecting rod big end and needle bearing for discoloration or damage Replace crankshaft with a new one as required 6 9 Replacing oil seal 1 Pry defective oil seal from engine NOTE Be careful not to damage housing of oil seal in crankcase 2 Apply Echo Lube grease on dust lip and seal lip of oil seal to avoid damage of lips while inserting crankshaft into oil seal 3 Lu...

Page 50: ...refully remove protruding portion of crank case gasket C with a sharp knife 6 10 Replacing ball bearing 1 Check main ball bearing for smooth rotation after disassembling crankshaft If rough replace it them with new one 2 Pry oil seal from crankcase 3 Remove main ball bearing from crankcase half using bearing tool 897701 14732 as follows 4 Set boss A and shaft B with adapter C inner dia 12 mm outer...

Page 51: ...ves 6 13 Installing piston ring and cylinder 1 Install piston ring on piston ensuring the end gaps of piston ring are properly positioned around locating pin A as shown 2 Stick new cylinder gasket on cylinder base with a little glue for easier installation of cylinder 3 Apply oil to piston ring and internal wall of cylin der 4 Install cylinder over piston ensuring that the ex haust side of cylinde...

Page 52: ... CUTTER DRIVE SYSTEM on SRM 2620ES C262S and T262XS A PTO Driven Shaft B Ball bearing C Retaining ring D Washer E Blade fixture F Gear set G Cup plate H Gear case J O ring K Drive shaft L Drive shaft housing Main pipe M Adaptor plate N Cover plate L K H A C D E G B F C B J M N ...

Page 53: ...TER DRIVE SYSTEM on SRM 2620TES C262TS and T262TXS A PTO Driven Shaft B Ball bearing C Retaining ring D Washer E Blade fixture F Gear set G Cup plate H Gear case J O ring K Drive shaft L Drive shaft housing Main pipe M Adaptor plate N Cover plate L K H A D C E B F C B J G M C C N ...

Page 54: ...ool set 897701 14732 vertically against a flat surface F several times until drive gear with two ball bearings SRM 2620TES C262TS and T262TXS three ball bearings come out WARNING DANGER When using a heat gun put on gloves Otherwise a burn will result 6 Remove retaining ring G from the groove of gear case using pliers then remove washer 7 Connect PTO shaft puller P021 044870 H with connector h1 to ...

Page 55: ...eedle nose pliers 2 Lubricate inside of new ball bearings with small amount of lithium based grease and then install them on new drive gear using oil seal tool 897714 24330 F Reinstall retaining ring D Inner diameter d1 12 mm 3 Remove ball bearing G from PTO shaft using bearing wedge 897701 06030 H or two screw drivers and remove driven gear J from PTO shaft 4 If PTO shaft or ball bearing K is dam...

Page 56: ... shaft 7 Insert PTO shaft in a new ball bearing P until the end of shaft is flush with bearing For SRM 2620TES T262TS and T262TXS 5 If retaining ring L is defective replace with a new one 6 Install a new ball bearing M to the PTO shaft using oil seal tool 897714 24330 7 Install a new driven gear N to PTO shaft 8 Install a new ball bearing P to PTO shaft un til it becomes slightly lower than groove...

Page 57: ...will result 2 Install washer B in gear case until its bottom 3 Install retaining ring C to the groove of gear case 4 Insert drive gear assembly D into gear case NOTE 28 mm diameter drive shaft housing cut to a suitable length can be used as a pusher 5 Install retaining ring E to the groove of the gear case bore 6 Fill gear case with about 20 grams 0 7 oz of lithium based grease 7 Reinstall cover p...

Page 58: ...r Inspect Clean Replace 6 3 Cylinder exhaust port Inspect Clean 6 3 Cooling system Inspect Clean 6 2 Gear housing None Drive shaft Grease Leads and connections Inspect Repair 3 5 Starter system Inspect Repair 2 2 2 6 Daily Inspecting in every service IMPORTANT Service intervals shown above are maximum Actual use and experience will determine the frequency of required maintenance Replacement is rec...

Page 59: ...nder cover Ignition coil 3 8 Piston 6 6 Crankcase 6 7 Ball bearings 5 4 Ball bearings 6 9 Crankshaft 6 7 Oil seal clutch side 6 8 Oil seal starter side 6 8 Flywheel 3 10 Piston ring 6 6 Clutch drum 5 3 Carburetor 4 6 Cylinder 6 5 Muffler 6 3 Starter assembly 2 1 Clutch assembly 5 1 Pawl carrier 2 6 8 2 Disassembly chart ...

Page 60: ...re extremely noisy Fuel consumption is excessive Vibration is excessive Engine does not stop Nylon cord head does not rotate Nylon cord head does not cut well CHECKING Starter system Starter pawl spring Rewind spring Ignition system Sparks Spark plug Spark plug cap coil Ignition switch Ignition coil Pole shoe air gaps Flywheel 2 6 2 4 3 2 3 3 3 7 3 4 3 5 3 6 3 8 3 9 3 10 Continued 15 Starter drum ...

Page 61: ...haust system Cooling air passage Muffler exhaust port Cylinder compression Crankcase cylinder seal Cylinder crankcase Piston piston ring 7 1 6 2 6 3 6 1 6 4 6 5 6 7 6 10 6 6 6 11 6 12 Gears Bearings 7 2 7 3 7 4 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 Crankcase pulse passage 4 7 Throttle control parts 3 5 4 11 Purge bulb 4 10 Clutch Cutter drive system Clutch shoes spring Clutch drum Clutch dr...

Page 62: ...MAINTENANCE GUIDE 60 SRM 2620ES SRM 2620TES T262XS C262S T262TXS C262TS ...

Page 63: ...MEMORANDUM 61 SRM 2620ES SRM 2620TES T262XS C262S T262TXS C262TS ...

Page 64: ...Published by YAMABIKO Corp Tokyo Japan 1802 ...

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Yamabiko Echo SRM-2620ES, Service Manual

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