Cobra CX50P3 Manual Download Page 78 | Manualshive

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Cobra CX50P3 Manual Download Page 78

78

Exhaust ..................................... 30
Frame ........................................ 36
Front Brake ............................... 38
Front Wheel ............................... 39
Inlet ........................................... 18
Plastic & Seat ............................ 40
Rear Brake ................................ 41
Rear Wheel ............................... 42
Shock .................................. 43, 44
Swingarm .................................. 45
Top End ..................................... 29

Plastic & Seat Parts ...................... 40

Pullers ........................................... 63

Rear Brake

Adjustment ................................ 11
Parts .......................................... 41

Rear Wheel

Parts .......................................... 42
Pullers ....................................... 63

Reeds ........................................... 63

Shock

Parts .................................... 43, 44

Slip Clutch ..................................... 16

Spark Plug

Recommended ............................ 4

Specifications .................................. 4

torque values ............................... 5

Starting ............................................ 7

Suspension

Adjustment ................................. 71

Swingarm Parts ............................. 45

Top End

Parts .......................................... 29
Service ....................................... 46

Torque Values ................................. 5

Transmission

Specifications .............................. 4

Transmission Lubricant

Replacing ................................... 10

Troubleshooting ............................ 75

Jetting ........................................ 72

VIN reading ..................................... 8

WARNING ....................................... 1

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Summary of Contents for CX50P3

Page 1: ...NDED FOR EXPERIENCED RACERS ONLY AND NOT FOR BEGINNERS IT IS YOUR RESPONSIBILITY AS THE OWNER OF THIS COBRA MOTORCYCLE OR AS THE PARENT OR LEGAL GUARDIAN OF THE OPERATOR TO KEEP THIS COBRA MOTORCYCLE...

Page 2: ...4 Fork Air Bleeding 15 Fork Oil Replacement 15 Cobra Frictional Drive V3 CFD 16 Parts 18 Parts Airbox and Inlet System 18 Parts Bars and Controls 19 Parts Carburetor 20 Parts Coolant System 21 Parts E...

Page 3: ...ne Removal 49 Complete Engine Disassembly Procedure 50 Top End Disassembly Procedure 50 Splitting the Cases 51 Engine assembly 52 Clutch 53 Clutch Assembly 57 Ignition 58 Cooling System 59 Fuel Air Sy...

Page 4: ...ix oil ratio after break in 40 1 to 50 1 Carburetion 12 mm Dell Orto Slow Pilot Jet Main Jet 55 92 Needle position W7 2 Slide 50 Float Height 16mm 0 5mm 0 63 0 020 Transmission Speed Clutch Single Cob...

Page 5: ...4 X 0 75 Clutch cover bolts 5 8 70 7 9 M6 X 1 0 Clutch nut 40 480 54 263 10 x 1 25 Clutch bolts 12 144 16 263 M6 x 1 0 Engine mount bolts 22 265 30 M8 X 1 25 Swingarm pivot 21 250 28 M14 X 2 0 Shock b...

Page 6: ...nute Allow bike to cool Ride for 15 minutes maximum avoid prolonged high RPM operation and avoid abusing the clutch with throttle blipping Allow bike to cool and inspect bike for loose fasteners Avoid...

Page 7: ...el upright position with the rear wheel off the ground 2 Pull up the choke knob and turn it to lock it 3 Kick start the engine 4 Rev the engine in short spurts turning the throttle no more than 1 4 op...

Page 8: ...er Produces virtually no coking deposits leaving pistons rings and heads extremely clean with minimal pipe spooge 2 Filling your transmission with more than 8 0 oz 235 cc of lubricant will help to tra...

Page 9: ...the recommended schedule below 12 Check proper clutch engagement before and after each ride If the clutch is engaging properly DO NOT feel the need to take the clutch apart to measure the spring stack...

Page 10: ...rned by the engine or the oil Hot oil and hot components on the motorcycle may cause burns 2 Remove the oil drain plug located on the right side of the engine on the clutch cover near the brake lever...

Page 11: ...3 Sit on the bike and verify that the chain has a minimum of 12mm 1 2 free movement when the chain is at its tightest point 4 If the chain requires adjusting loosen the axle with a 19 mm wrench and ti...

Page 12: ...undone while riding To adjust see figure 2b 1 Loosen the lock nut 10mm 2 Undo the free play locking clip from around the brake adjustor plunger with your hand by pushing it forward 3 Slide the pin of...

Page 13: ...The vacuum will swell the air bubbles which assist in them moving throughout the system Continue pulling a vacuum and release the brake lever pedal careful not to allow the reservoir to become empty O...

Page 14: ...esigned Air box It is very important to keep the air filter clean and properly oiled with high quality water resistant foam filter oil It s very important to oil your filter consistently each time bec...

Page 15: ...Fork Oil Replacement Tools required 32mm Fork Cap Tool MCMUTL32 19mm wrench or socket 4 5 mm hex key Allen wrench 9 16 wrench Mallet 2 5 wt Bel Ray fork oil Disassembly procedure 1 Remove the front w...

Page 16: ...height in the clamps 11 Reinstall the brake caliper 12 Reinstall the front wheel 25 ft lb 34 Nm Cobra Frictional Drive V3 CFD The Cobra Frictional Drive CFD is essentially an adjustable slip clutch th...

Page 17: ...ad nut so you must turn it counter clockwise NOTE This V3 CFD torque checking method is possible do to with the chain on Just put the bike on a stand so that the rear wheel can turn freely NOTE The CF...

Page 18: ...W 6 MCKGHO04 HOSE CLAMP CARBURETOR TO MANIFOLD 7 RCCL0001 CARBURETOR 12mm DELLORTO 2016P3 8 RCCM1301 VELOCITY STACK 9 MCKGHO01 HOSE CLAMP AIR BOOT TO CARBURETOR 10 RCCJ0004 AIR FILTER WITH BOOT 11 RCM...

Page 19: ...RO BAR THROTTLE 4 FCPW0004 CABLE COVER 5 FCMU0021 THROTTLE COVER 6 FCMU0019 THROTTLE CABLE 6A HCNJ0801 NUT 8MM JAM 7 BAKG0003 BRAKE ASSEMBLY FRONT 8 FCMU0033 KILL SWITCH ASSEMBLY 9 HCBC0806 M8X30mm SO...

Page 20: ...ASSEMBLY 13 RCMU0009 FUEL MIXTURE SCREW 16 14 RCMU0011 IDLE ADJUSTMENT SCREW 18 15 RCMU0201 SCREW FLOAT BOWL 20 RCMU00xx PILOT JET xx denotes size 22 RCMU0262 ATOMIZER 2 62 AU STANDARD 23 RCMU0107 FLO...

Page 21: ...6 LOCK NUT 7 MCKGGR00 GROMMET RADIATOR MOUNTING 8 FCCJ0029 HOSE RADIATOR RIGHT VENOM 9 TCCJ0001 BUMPER RAD BRACKET 10 FCMU0049 OVERFLOW HOSE 20 11 MCMUCL05 HOSE CLAMP OVERFLOW HOSE 12 ECHA0109 MOUNTIN...

Page 22: ...3 STATOR WITH GROMMET 8 HCBC0535 M5X35mm SOCKET HEAD CAP SCREW 2 REQ D 9 HCBC0525 M5X25mm SOCKET HEAD CAP SCREW 10 HCWF0601 6MM FLAT WASHER FOR STATOR 3 REQ D 11 ICMU0042 ROTOR FEW 2016 5 12 EKMU0035...

Page 23: ...23 This Page Intentionally Left Blank...

Page 24: ...24 Parts Engine Bottom End and Transmission...

Page 25: ...1 BEARING TRANSMISSION SHAFT 1 EACH CASE HALF 13 HCBB0612 M6X12mm BUTTON HEAD SCREW BEARING RETAINER 2 REQ D 14 ECKGBR01 BEARING TRANSMISSION OUTPUT SHAFT 15 ECMU0236 SEAL OUTPUT SHAFT 2016 5 16 ECMU0...

Page 26: ...26 Parts Engine Clutch and Kick Lever...

Page 27: ...CFD 7mm 21 ECMU0272 OIL FILL PLUG VENOM 22 ZCMUB014 O RING OIL FILL PLUG 23 HCFH0616 M6X16mm FLAT HEAD BOLT 24 ECMU0250 WASHER KICK LEVER MOUNTING 25 EAMU0011 KICK LEVER 26 ECDC0078 SEAL KICKSHAFT 28...

Page 28: ...5 ECKG0073 IMPELLER WATER PUMP ALUMINUM 6 HCBB0512 M5X12mm BUTTON HEAD 7 ECMU0167 BEARING WATER PUMP BIG 8 EKMU0035 KIT PULLEYS SPACER BELT RETAINER FWE 2016 5 9 HCBS0009 SHOULDER BOLT 10 ECKG0170 WAT...

Page 29: ...ECMUSR00 SNAP RING FOR PISTON 2 REQ D 7 ECKG0012 WRIST PIN 8 ZCMUOR07 O RING EXHAUST FLANGE 9 ECMU0262 EXHAUST FLANGE 10 ZCMOTE11 O RINGS PIPE TO FLANGE 2 REQ D 11 HCBC0612 M6X12 EXHAUST FLANGE SCREW...

Page 30: ...GS 2 REQ D 3 XCMU0005 EXHAUST SPRING SHORT 2 REQ D 4 MCMUGR02 GROMMET KIT 5 XCMU0028 PIPE SILENCER SEAL 2016 6 XCMU0032 SILENCER 7 MCMUGR03 MOUNTING GROMMET 2 REQ D 8 TCKG0001 SPACER 2 REQ D 9 HCWF147...

Page 31: ...31 This page left intentionally blank...

Page 32: ...32 Parts Forks Triple Clamps...

Page 33: ...6 M8X30mm SOCKET HEAD CAP SCREW 4 REQ D 13 TKMU0404 HANDLE BAR CLAMP KIT SHORT STANDARD 13A TKMU0403 HANDLE BAR CLAMP KIT TALL 14 HCBC0820 M8X20mm SOCKET HEAD CAP SCREW 4 REQ D 16 FCMU1103 DUST COVER...

Page 34: ...34 Parts Forks Leg Assembly...

Page 35: ...FORK SPRING GUIDE 32MM 14 KCCL0002 SPACER SPRING GUIDE EXTEND 15 KCCJ3221 STANDARD SPRING FORK 0 21 KG MM 32mm 15 KCCJ3218 LIGHT SPRING FORK 0 18 KG MM 32mm 15 KCCJ3225 HEAVY SPRING FORK 0 25 KG MM 3...

Page 36: ...HCBB0635 M6X35mm BUTTON HEAD CAP SCREW 13 HCBF0620 M6X20mm FLANGE HEAD BOLT 14 HCNF0602 M6 NYLOC FLANGE NUT 15 HCBF0625 M6X25mm FLANGE HEAD BOLT 16 MCMUGR03 GROMMET SILENCER 2 REQ D 17 TCKG0001 SPACER...

Page 37: ...T RADIATOR BOTTOM 3 HCBC0608 M6X55mm SOCKET HEAD CAP SCREW 4 HCNL0601 M6 LOCK NUT 5 MCKGGR00 GROMMET RADIATOR MOUNT 2 REQ D ON BOTTOM 2 ON TOP BRACKET 6 ECHA0109 MOUNTING BRACKET RADIATOR TOP 2 REQ D...

Page 38: ...E FLUID DOT 5 1 OR HIGHER ACCESSORY BCKG0031 BLEED KIT MULTIPLE SYRINGES FITTINGS HOSE ACCESSORY BCKG0028 LEVER ADJUSTMENT KIT ACCESSORY BCKG0027 RESERVOIR SEAL KIT ACCESSORY BCKG0025 REPLACEMENT BAR...

Page 39: ...AXLE 3 HCBC0514 M5X14mm SOCKET HEAD CAP SCREW 6 REQ D 4 BCMU0503 BRAKE ROTOR FRONT 5 WCMU0101 WHEEL SPACER LEFT SHORT 6 WCMU0120 BEARING WHEEL 2 REQ D 7 WCCJ0007 SPACER WHEEL FRONT 8 WCCJ0003 WHEEL SP...

Page 40: ...EW 5G TCHA0004 BUSHING REAR TANK MOUNTING 6 TCHA0002 CAP FUEL TANK 7 TCHA0003 HOSE FUEL CAP 8 TCMU0151 FUEL PETCOCK 9 TCCM0007 SEAT 9A TCCM0007C SEAT COVER REPLACEMENT 9B HCBB0604 M6X35mm SHCS SEAT HO...

Page 41: ...LT 14 HCCC0000 BRAKE HOSE CLAMP 2 REQ D 15 HCPP0832 BRAKE HOSE CLAMP FASTENER 2 REQ D 16 BCMU0502 BRAKE ROTOR 140mm 17 HCBC0601 M6X16mm SOCKET HEAD CAP SCREWS 5 REQ D 18 HCBF0620 M6X20mm FLANGE HEAD B...

Page 42: ...34 45 7 HCBH0702 M7X30mm HEX HEAD BOLT 4 REQ D 7A HCWF0701 7mm FLAT WASHER 4 REQ D 7B HCNL0701 M7 LOCKNUT 4 REQ D 8 WCMU0016 REAR AXLE 10 WCMU0101 WHEEL SPACER 11 WCMU0120 WHEEL BEARING SPROCKET SIDE...

Page 43: ...MU0042 BUSHING SHOCK MOUNT 4 REQ D 5 SCMU0058 SET SCREW NYLON TIP M6 1 0 6 HCFH0408 4MM FLAT HEAD SCREW 8 SCCJ0004 BUMPER P3 CARD SHOCK 9 SCMU0054 PERCH SPRING 10 HCBF1040 M10X40 FLANGE HEAD BOLT 11 S...

Page 44: ...RGE PORT 3 SCMU0035 O RING IFP SCREW 4 SCP30002 O RING IFP 5 SCP30003 SEAL BAND IFP 6 SCC60014 PISTON BAND 7 SCMU0044 SEAL HEAD BUMPER 8 SCMU0034 O RING SEAL HEAD 9 SCMU0045 DUST SEAL 10 SCMU0047 SPAC...

Page 45: ...10 HCBFT640 M6X40mm FLAT HEAD BOLT 2 REQ D 11 HCNL0601 M6 LOCKNUT 2 REQ D 12 FAMU0005 WHEEL PULL ASSEMBLY BLOCK CAP BOLT AND WASHER 13 FCMU0203 WHEEL PULL 14 FCMU0202 WHEEL PULL ENDCAP 15 HCWF0801 8m...

Page 46: ...ry of the spark plug used in this Cobra Motorcycle the adapter used with your compression tester must have a similar volume protruding into the combustion chamber to establish an accurate value Length...

Page 47: ...and crankcases all have varying tolerances Cobra offers several different base gasket thickness to ensure that you can always set the squish clearance of your engine to factory specifications For bas...

Page 48: ...that the tip of the wire touches the left or right side cylinder wall not the front or back as the piston will rock more and give incorrect measurement Hold the wire at this position and rotate the c...

Page 49: ...5 With the internal CFD gear stop tool in position check the slip torque again it is NOT necessary to have the cotter pin for the test 6 If the slip torque is below 108 Nm 80 ft lb then repeat steps...

Page 50: ...f the frame NOTE If you are merely performing a top end service skip ahead to Top End Disassembly Procedure Complete Engine Disassembly Procedure 1 Remove the ignition cover 3mm hex key 2 Remove the b...

Page 51: ...pes scratches pitting etc are found replace the cylinder 2 If deposits are all are found a Clean with muriatic acid b Once the deposits are removed inspect for abrasions and missing surface coating i...

Page 52: ...faces the crank weights 3 Press in the counter shaft seal concave side faces inside of transmission 4 Press in the water pump assembly 5 Tap both ways axially then verify easy rotation 6 Inspect the...

Page 53: ...cycles 19 Leak check the engine to 20 psi to ensure proper seal 20 Install stator reinstalling the grommet and wires snug the bolts 21 Install the rotor per Rotor Installation section under the S3 Ig...

Page 54: ...ch nut removal tool ECMU0078 piston stop MCMUTL03 Cobra 3 Shoe Clutch Milk Part MCMUGF32 CLUTCH REMOVAL 1 Drain the engine transmission oil and remove the clutch cover 2 Remove the clutch nut NOT left...

Page 55: ...mer to achieve different clutch engagements hits by changing washer counts and configurations CAUTION Generally reassemble the springs as you removed them from the engine or as you received them from...

Page 56: ...e stock washer with the proper combination of adjustment washers that delivers the desired clutch hit CAUTION It is easy to prematurely damage the clutch and other engine components with improper clut...

Page 57: ...removing all old thread locking material 3 Assemble the stacks and shoes on the arbor using high strength thread lock material to the stack bolt and tighten to 16 Nm 12 ft lb 144 in lb CAUTION Avoid a...

Page 58: ...large enough There should be even clearance as the rotor rotates relative to the stator Ignition timing is not adjustable Changing the ignition timing can degrade performance Make sure connections ar...

Page 59: ...ng System Radiator fluid removal Remove the coolant drain plug 10mm hex key on the bottom of the engine cases NOTE Inspect the old coolant for evidence of oil combustion byproducts black oil slick stu...

Page 60: ...ed 9 Lubricate the bore with grease 10 Prepare for assembly by installing the water pump assembly into the assembly tool and align the tool with engine case making sure alignment pin is in proper hole...

Page 61: ...e can occur if not properly adjusted IDLE ADJUSTMENT On the left side of the carburetor there are two adjustment screws The larger screw with the knurled head is the idle adjustment screw To raise the...

Page 62: ...rmer conditions turn the screw in In colder conditions turn the screw out Be sure to keep the carburetor very clean and make sure you don t have water or dirt in the carburetor bowl Use automotive car...

Page 63: ...crucial element to a motorcycle Any kinks dents or damage done to the pipe will result in a major performance loss NOTE Be sure to take the pipe off and any carbon that may be built up Carbon build up...

Page 64: ...Clean the rotor with mild dish soap or alcohol Contaminated pads must be replaced Ensure that the brake caliper is centered over the brake rotor It a correction is needed Cobra has thin brake shims to...

Page 65: ...n the new seal Also take care that the inner lip is not folded over when installing 4 Slide bushing 3 onto lower fork leg 5 Install the glide ring into groove on lower fork leg 6 Slide the bushing ove...

Page 66: ...Because of different rider weights sizes and riding styles we offer various suspension options See Optional Components section of this manual for details on these and other optional components for yo...

Page 67: ...thickness difficult to measure accurately can only be approximated by the size of the step where it sticks out of the basket h Basket has worn and is too large There is a relationship between observe...

Page 68: ...to remember If your clutch is hitting fine don t mess with it Some things to remember to aid clutch life Change oil each ride Gear to the low side Avoid mud if possible Cut mud practice to 1 lap or n...

Page 69: ...any of the measurements A For the most part that does not matter Suffice it to say that any efforts to make the three shoes behave identically will make the best performing clutch Taking extra time t...

Page 70: ...er Mud Sand Hills Hard Pack Throttle Blipper novice Front Sprocket Rear Sprocket Gear Ratio 15 33 2 20 15 34 2 27 15 35 2 33 14 33 2 36 15 36 2 40 14 34 2 43 15 37 2 47 14 35 2 50 15 38 2 53 13 33 2 5...

Page 71: ...esistance to the suspension motion when the suspension is compressing 1 6 Rebound damping 1 6 1 Harder more damping slower adds resistance to the suspension motion when the suspension is returning to...

Page 72: ...gine performance and engine life Symptoms of improper jetting are listed below Symptoms of incorrect oil or oil fuel ratio o Poor acceleration o Misfire at low engine speeds o Excessive smoke o Spark...

Page 73: ...roper measuring technique is described later in this section NOTE Perform all jetting changes on a motorcycle that has been warmed up to proper operating temperature The carburetor on your Cobra motor...

Page 74: ...cceleration of your Cobra Motorcycle on the longest straight at the track Observe any of the lean or rich symptoms spark plug appearance and bike performance listed above and change your jetting accor...

Page 75: ...is down on power a Clutch engagement is not set properly b Jetting is incorrect c Silencer needs repacked d Exhaust pipe i Has excess carbon buildup ii Has large dent in it e Compression is low i Pis...

Page 76: ...round vi Stator winding damaged d Exhaust is plugged 6 Overheating a Bad stator b Water pump pulleys or belt broken c Water pump impeller broken or bolt out d Jetting too lean e Too much throttle blip...

Page 77: ...6 Cooling System 59 Engine Specifications 4 Exhaust 63 Parts 30 Fork Operation 72 Fork oil replacement 15 Frame Parts 36 Frictional Drive 16 Front Brake Parts 38 Front Wheel Parts 39 Fuel System Servi...

Page 78: ...Brake Adjustment 11 Parts 41 Rear Wheel Parts 42 Pullers 63 Reeds 63 Shock Parts 43 44 Slip Clutch 16 Spark Plug Recommended 4 Specifications 4 torque values 5 Starting 7 Suspension Adjustment 71 Swi...

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