Cobra Moto CX50 FWE Manual
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Cobra Moto CX50 FWE Manual

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Summary of Contents for Cobra Moto CX50 FWE

  • Page 1 Owners Parts Service Tuning...
  • Page 2 For parts orders, contact your local dealer. To locate your closest Cobra dealer, log on to www.cobramoto.com or call +1 (517) 437 - 9100 Cobra MOTO, LLC 240 Uran Road Hillsdale, MI 49242...
  • Page 3 DISCLAIMER OF WARRANTY This motorcycle is sold “as is” with all faults, obvious or not. There are no warranties expressed or implied, including any warranty of merchantability and warranty of fitness for any particular purpose. “WARNING” THE COBRA CX5E IS A COMPETITION MODEL ONLY AND IS NOT MANUFACTURED FOR, NOR SHOULD IT BE USED ON PUBLIC STREETS, ROADS, OR HIGHWAYS.

  • Page 4: Table Of Contents

    Table of Contents GENERAL INFORMATION .................. 4 ......................4 PECIFICATIONS ENERAL ..................5 PTIONAL USPENSION OMPONENTS ..................... 6 PECIFICATIONS ORQUE ALUES ....................... 7 OWER ROCEDURE MAINTENANCE ....................9 ............................. 9 ..........................10 CHEDULE ..................11 EPLACING OTOR OOLING LUID ..................... 11 ROPER HAIN ADJUSTMENT .....................
  • Page 5 – R ....................... 38 ARTS HEEL – S ......................... 39 ARTS HOCK – S ......................40 ARTS HOCK NSIDE – S ....................41 ARTS WINGARM SSEMBLY SERVICE ......................42 ..................42 OTOR OOLING LUID EPLACEMENT ....................... 42 EAR WHEEL PULLERS .............................

  • Page 6: General Information

    General Information Specifications - General Items CX50 FWE Dimensions 41” (1041mm) Wheelbase 10” (254mm) rear, 12” (305mm) front Wheel size 26” (660mm) Seat height Motor Cobra – out runner Type Cooling system Liquid-cooled Coolant Cobra Motor Cooling Fluid, 500 ml...

  • Page 7: Optional Suspension Components

    Optional Suspension Components Weight of Rider (lb) Fork Spring Shock Spring Less than 50 lb 0.23 kg/mm green, 2.9 kg/mm KCCS3223 SCKGFX29 50-60 0.25 kg/mm black, 3.1 kg/mm KCCS3225 SCKGFX31 60-75 0.25 kg/mm red, 3.3 kg/mm KCCS3225 SCKGFX33 Greater than 80 0.27 kg/mm gray, 3.5 kg/mm KCCS3227...

  • Page 8: Specifications - Torque Values

    Specifications - Torque Values Torque Value Size & Fastener Loctite Remarks ft-lb in-lb Phase & power to MDU M5 x 0.8 Phase wires to Motor M6x1.0, copper Motor mount bolts M8 X 1.25 Swingarm pivot M14 X 2.0 Shock bolt M10 x 1.5 Rear axle nuts M12 X 1.25...

  • Page 9: Power Up Procedure

    Power Up Procedure • Before Powering Up the machine inspect the following o Tire pressure o Chain tension o Cooling fluid level o Proper wear on chain rollers and sliders o Handlebar tightness o Throttle assembly movement o Check for loose nuts and bolts •...
  • Page 10 2. Check chain sliders and sprockets regularly. 3. Change cooling fluid every 3 months. 4. Lube chain each moto. For those serious racers: 1. Warm up motor before racing for better starts. Feel radiator with hand until close to normal running temp is reached.

  • Page 11: Maintenance

    5. Be mindful of anything with wires coming out of it. Things can be waterproof, but those same things may not be pressure washing proof. Other: 1. While on track, if active light starts flashing..either from falling over and being tilting too long or kill switch key falling off...

  • Page 12: Schedule

    a. Example, FWExx17xxx is a 2017 CX50 SR. The frame is 4130 Chrome Moly & HSLA, and it is important to weld it with the proper rod and heat settings set as light as possible. Cobra recommends replacing the frame with a new one if the old one becomes damaged.

  • Page 13: Replacing Motor Cooling Fluid

    Replacing Motor Cooling Fluid Tools needed: • 8mm Allen wrench • Minimum of 500 cc (16 oz) Cobra Motor Cooling Fluid (Part #MCMUMF32). Procedure: (to be completed) Proper Chain adjustment Tools required for chain adjustment • 19 mm wrench or socket •...
  • Page 14 Figure 3 (top), Figure 4 (bottom)

  • Page 15: Rear Brake Maintenance

    Rear Brake Maintenance CAUTION: Too little brake pedal free play will allow the brake pads to drag causing the pads to wear prematurely and possible engine component failures. Too much free play will not allow the rider to apply the brakes quickly. 1.

  • Page 16: Fork Maintenance

    Fork Maintenance Cobra strongly recommends that a professional service technician conduct all internal maintenance other than changing springs and oil. This will help to ensure safe and consistent operation. For routine maintenance, the chart below provides suggested service intervals for common procedures: Each Ride 10 hours...

  • Page 17: Fork Oil Replacement

    Fork Oil Replacement Tools required • 32mm Fork Cap Tool (MCMUTL32) • 8mm Allen wrench • 4 & 5 mm hex key (Allen wrench) • 9/16 wrench • Mallet • 5 wt. VP fork oil Disassembly procedure 1. Remove the front wheel and axle (8mm Allen wrench). 2.
  • Page 18 10. Pump the fork leg several times to verify that it operates smoothly. 11. Reinstall the brake caliper. 12. Reinstall the front wheel (25 ft-lb, 34 Nm).

  • Page 19: Parts - Bars And Controls

    Parts – Bars and Controls Bars and Controls REF # PART # DESCRIPTION HANDLEBAS – MICROBARS – COBRA BEND FAMU0014 GRIPS (SET OF TWO) – MICROGRIPS TCMU0021 THROTTLE ASSEMBLY – TWIG - ELECTRONIC FACE50006MP HCBC0412 12 SHSC STOP RING – MICRO BAR THROTTLE FCMU0041 SEE FRONT BRAKE NCCE50001MP...

  • Page 20: Parts - Battery

    Parts – Battery Battery REF # PART # DESCRIPTION BATTERY ASSY – 1.0 kWh – W MOUNTING HARDWARE DACE10002 GROMMET – REAR BATTERY MOUNT 1kWh DCCE10010 COMP LIMITER – REAR BATTERY MOUNT 1kWh DCCE10009 STUD – FRONT BATTERY MOUNTING DCCE10006 SHIELD –...

  • Page 21: Parts - Coolant System

    Parts – Coolant System Coolant System REF # PART # DESCRIPTION FCCE50012 RADIATOR FCMU0069 LOUVER GROMMET – RADIATOR MOUNTING (2 REQ’D) MCMUGR12 FASTENER – RADIATOR MOUNTING (2 REQ’D) HCSP0610 FCMU0020 CAP, 1.3 BAR FCMU0113 RADIATOR OVERFLOW HOSE, 20” HOSE – USED AS CLAMP FCMU0322 HCSP0004 PLASTIC SCREW...

  • Page 22: Parts - Electrical System

    Parts – Electrical System Electrical System REF # PART # DESCRIPTION CONTROLLER – MOTOR JCCE50003 THERMAL PAD – HEAT SINK TO CONTROLLER NCMU0001 MOUNT – CONTROLLER FCCE50016 CLAMP – CONTROLLER MOUNT (4 PCS) FCCE50019 HCBC0516 M5X16MM SHCS HCBC0665 M6X65MM SHCS M6 FLAT WASHER (4 REQ’D) HCWF0601 HCNL0601...

  • Page 23: Parts - Electronics Box

    Parts – Electronics Box Air Box REF # PART # DESCRIPTION TCCE50002 ELECTRONICS BOX TCCE50062 ELECTRONICS HANGER CAN NETWORK NODE MODULE W/ JCCE50055MP DIAGNOSTIC PORT (CNN Module) TCC60008 MUDFLAP HCSP0004 PLASTIC SCREW HCBC0516 M5X 16 SHCS HCPP0739 PLASTIC SCREW HCHA0003 M6 CLIP NUT HCCN0001 M5 CLIP NUT...

  • Page 24: Parts - Forks & Triple Clamps

    Parts – Forks & Triple Clamps...
  • Page 25 Front Forks and Triple Clamp REF # PART # DESCRIPTION KACS2021FWE FORK COMPLETE, BRAKE & NON-BRAKE SIDE FORK GUARD SET – 2021 KCMU0035 BOLT - FORK GUARD - BLACK (6 REQ’D,) HCSP0610BLK KCMU0036 BRAKELINE CLAMP PLASTIC SCREW (2 REQ’D) HCSP0004 FAMU0020BLK TRIPLE CLAMP BOTTOM ASSY, (CLAMP &...

  • Page 26: Parts - Forks - Leg Assembly - Brake Side

    Parts – Forks – Leg Assembly – Brake Side...
  • Page 27 Parts – Forks – Leg Assembly – Brake Side REF # PART # DESCRIPTION HCBC0408 4 X 8 SHCS CLEAR ZINC ZCKG0001 GASKET, BLEED SCREW FORK KCCS0004C FORK CAP - CONVENTIONAL 32MM USD O-RING – 3MM X 27MM ID ZCMUOR18 KCCS0036 SPRING WEAR PLATE 32MM KCCS0005...

  • Page 28: Parts - Forks - Leg Assembly - Non-Brake Side

    Parts - Forks – Leg Assembly – Non-brake Side...
  • Page 29 Parts - Forks – Leg Assembly – Non-brake Side REF # PART # DESCRIPTION HCBC0408 4 X 8 SHCS CLEAR ZINC ZCKG0001 GASKET, BLEED SCREW FORK KCCS0004S FORK CAP - CONVENTIONAL 32MM USD O-RING – 3MM X 27MM ID ZCMUOR18 KCCS0036 FORK - SPRING WEAR PLATE 32MM KCCS0005...

  • Page 30: Parts - Frame & Subframe

    Parts – Frame & Subframe Frame REF # PART # DESCRIPTION FRAME – 2023 FWE FACE102023 POST – SIDE LOUVER FCCE50015 TCMU0139 FOOTPEGS (PAIR) TCC60012 SPRING - FOOTPEG (SINGLE PIECE) FCMU0031 CLEVIS PIN - FOOTPEG HCWF0801 8mm FLAT WASHER HCCP0008 COTTER PIN 1/8 X 3/4 TCMU0044 LOWER CHAIN SLIDE...

  • Page 31: Parts - Front Brakes

    Parts – Front Brakes Front Brakes REF# PART # DESCRIPTION BACS0001 BRAKE ASSY - FRONT CARD - KING FW - 2 PISTON 11.0 HOSE – BRAKE FRONT BCCS0003 BAMU0009 LEVER ASSEMBLY BAMU0006 MASTER CYLINDER ASSEMBLY COMPLETE W LEVER CALIPER – FRONT – CARD 2 PISTON BAMU0020 BKMU0009 KIT 505 ORGANIC BRAKE PADS, WITH BOLT AND CLIP...

  • Page 32: Parts - Front Wheel

    Parts – Front Wheel Front Wheel REF # PART # DESCRIPTION WHEEL WITH BEARINGS SPOKE STYLE – BLACK ANODIZE WACSF021BLK WCMU0043 FRONT AXLE - HOLLOW BOLT – ALUMINUM AXLE PULL – BLACK ANODIZE HCSP1016BLK WCMU0024 PLUG - BLACK PLASTIC M5X14mm SOCKET HEAD CAP SCREW (5 REQ’D) HCBC0514 BRAKE ROTOR –...

  • Page 33: Parts - Motor System - Internals

    Parts – Motor System - Internals Motor System REF # PART # DESCRIPTION STUGGER – PUMP JCCE50038 M5X16MM FLAT HEAD SCREW (4 REQ’D) HCFH0516 BEARING – OUTPUT ECKGBR01 BEARING – STATOR HUB – 15X28X7 JCCE50034 DOWEL PIN 4X16 (3 REQ’D) ECDC0051 STUD –...
  • Page 34 Parts – Motor System – Sprocket Side Motor System REF # PART # DESCRIPTION MOTOR ASSEMBLY – COBRA – SMALL VEHICLE JACEMU001 SNAP RING – OUTPUT SHAFT (2 REG’D) ECKGSR03 SPROCKET – FRONT – 10T – 415 CHAIN PCMU0010 GUARD – MOTOR CASE SAVER JCCEMU008 GUARD –...
  • Page 35 Parts – Motor System – Wire Side Motor System REF # PART # DESCRIPTION MOTOR SENSOR MODULE – HALL HUB – SMALL VEHICLE JCCEMU004MP O’RING – MOTOR HOUSING (3 REQ’D) ZCCEMUOR01 O’RING – TEMP SENSOR PASS THRU ZCCEMUOR02 O’RING – JST CONNECTOR PASS THRU ZCCEMUOR03 PRESSURE PLATE –...

  • Page 36: Parts - Plastic Bodywork & Seat

    Parts – Plastic Bodywork & Seat...
  • Page 37 Parts – Plastic Bodywork & Seat Plastic and Seat REF # PART # DESCRIPTION FRONT FENDER – BLACK TCCS0009BLK FRONT FENDER x – DENOTES COLOR BLK, WHT, YEL, FXX TCCS0009x HCBF0616 FRONT FENDER MTG BOLTS (4 REQD) TCMU0041BLK FRONT NUMBER PLATE - BLACK FRONT NUMBER PLATE x –...

  • Page 38: Parts - Rear Brake

    Parts – Rear Brake...
  • Page 39 Parts – Rear Brake Rear Brake System REF # PART # DESCRIPTION BRAKE SYSTEM – REAR (M/C-LINE-CALIPER) BAMU0003 BCMU0027 BRAKE PIVOT BOLT SEAL – BRAKE PEDAL (2 REQ’D) BCMU0501 BRAKE PEDAL – ASSEMBLY 50cc – WITH TOE PIECE BCMU0062 BCMU0023T TOE PIECE HCBC0501 M5X 12mm SOCKET HEAD CAP SCREW...

  • Page 40: Parts - Rear Wheel

    Parts – Rear Wheel Rear Wheel REF # PART # DESCRIPTION REAR WHEEL W/BEARINGS – BLACK WAMUR021BLK WCMU1075D32 TIRE - REAR - 70/100-10 - DUNLOP MX3S WCMUTU10 TUBE, 10" PCMU0001 MASTER LINK 420 PCMU0102 CHAIN 420 X 102 PCC50238BLK 50T SPROCKET (STANDARD) 415 - BLACK SPROCKET xx DENOTES TEETH –...

  • Page 41: Parts - Shock

    Parts – Shock Shock REF # PART # DESCRIPTION SHOCK ABSORBER – KING SACS2021 SHOCK - BEARING SPHERICAL SHOCK MOUNT–CARD (2 REQ’D) SCMU0043 O-RING - SHOCK - BUSHING – CARD (4 REQ’D) SCMU0039 SHOCK - MOUNT BUSHING – CARD (4 REQ’D) SCMU0042 SCMU0058 SHOCK - WHITE NYLON TIP SETSCREW M6-1.0 - CARD...

  • Page 42: Parts - Shock - Inside

    Parts – Shock - Inside Shock REF # PART # DESCRIPTION COMPRESSION ADJUSTER ASSEMBLY – COMPLETE SAMU0001 O-RING – COMPRESSION ADJUSTER - OUTSIDE ZCMUB020 O-RING - COMPRESSION ADJUSTER – PISTON SEAL KCMU0021 ZCMUOR37 O-RING - COMPRESSION ADJUSTER - INSIDE SCMU0051 O-RING - IFP SCMU0052 IFP SEAL BAND...

  • Page 43: Parts - Swingarm Assembly

    Parts – Swingarm Assembly Swingarm REF # PART # DESCRIPTION GACS2021 SWINGARM GCMU0021 BOLT - TI - SWINGARM PIVOT and AXLE - CX50- shorter HCNL1201 M12 SWINGARM LOCK NUT SWINGARM BUSHING (4 REQ’D) GCMU0001 CHAIN GUIDE ASSEMBLY COMPLETE – CXe5 PACE10001 M6X40mm FLAT HEAD SCREW (2 REQ’D) HCBFT640...

  • Page 44: Service

    Service Trained technicians with precision gauging and proper assembly fixtures carefully assemble all Cobra engines to specific tolerances. If you feel you have the skills, and the appropriate tools, to perform the following service tasks please follow the instructions closely. The part numbers are listed throughout to help you when ordering parts from your local Cobra dealer.

  • Page 45: Brakes

    Rear wheel alignment: By eye, ensure that the rear sprocket is running true (in-line, planar) with the front sprocket. When the sprockets are running true, the wheel is properly straightened, and the chain will run straight. Brakes Check before each ride: •...

  • Page 46: Tuning

    Tuning Gearing Condition Gear Taller Gear Lower What happens with improper gearing? Sand • Poor performance Hills • Not enough top end speed • No snap out of the corners Hard Pack • No jump at the gate Rear Ratio 4.18 4.36 4.55...

  • Page 47: Front Fork Operation

    Front Fork Operation The front suspension on the CX50SR works under the principals of hydraulic damping, and it features full adjustability to help tune the fork to meet each rider’s needs. The CARD fork contains MXT ‘Smart Leg’ technology that provides very progressive operation; allowing a small bike to perform well on track surfaces ripped up by larger machines.

  • Page 48: Rear Shock Adjustments

    At the base of the conventional leg is another adjustment screw that controls the amount of compression damping. Turning this screw clockwise increases damping and turning it counter- clockwise will decrease it. This is illustrated by the “HARD” and “SOFT” in the figure at the right. The Smart Leg cap is labeled “Speed Sensitive Bottoming Control”, and this adjuster provides a range of control over how progressive the fork feels.
  • Page 49 Shock preload Loosen the set screw and turn the spring perch in full turn increments to get the desired sag settings. NOTE: Always leave the spring perch rotated in such position so that the set screw is easily accessible. Shock Damping The Low Speed “L”...

  • Page 50: Troubleshooting

    Troubleshooting • RDU Lower Left Fault light: Battery Fault • RDU Lower Right Fault Light: Electrical System • Bike doesn’t run at all, RDU Lower Red Fault light is On solid. o Order of replacement: 1. Replace Hall Board in motor 2.

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Cx5e

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