Before choosing an instrument cable for the 1981 CB650C, trace the existing cable to its drive and gauge. The speedometer and tachometer replacements have different references. Compare those identities and the route needed by any repositioned gauges rather than ordering from casing appearance alone.
1981 Honda CB650C Custom Motorcycle Parts1981 Honda CB750C Motorcycle Parts1982 Honda CB450SC Nighthawk Motorcycle Parts1982 Honda CB750C Motorcycle PartsHonda CB Tachometer & Speedometer CablesHonda CB Tachometer, Speedometer & Gauge PartsHonda CB450 Motorcycle Parts by Model & YearHonda CB450SC Nighthawk Motorcycle Parts (1982–1986)Honda CB650 Motorcycle Parts by Model & YearHonda CB650C Custom Motorcycle Parts (1980–1981)Honda CB750 DOHC Parts (1979–1982)Honda CB750 Motorcycle Parts by Model & YearHonda CB750C Custom Motorcycle Parts (1980–1982)Series 5: CB650 (79-82)Series 7: CB400-CB450 (65-86)
Replace your CB Custom or CB450SC speedometer cable with this Speedometer Cable, replacing OEM #44830-MA5-670. Made in Japan.Key Features• Speedometer cable• Replaces OEM #44830-MA5-670•...
Replace your CB650 tachometer cable with this Tachometer Cable, replacing OEM #37260-426-000. Made in Japan.Key Features• Tachometer cable• Replaces OEM #37260-426-000• Made in JapanFitment...
Trace the drive cable before selecting its replacement
The speedometer cable uses 44830-MA5-670 for the 1981 Custom. The tachometer cable uses 37260-426-000. Keep the two applications distinct and check the actual instrument ends before planning a cable replacement.
The Japanese-made speedometer cable has a specific 1981 CB650C application. Identify the fitted wheel drive and gauge before choosing it. Previous repairs may have altered one end of the system even when the motorcycle still has an otherwise original cockpit.
Keep cable removal and cable replacement separate
Replacing a cable and removing a mechanical instrument call for different parts. If a cable is being removed, identify the required closure, seal and retainer from the product instructions. A speedometer wheel-drive closure serves a different fitting from a tachometer-drive plug; compare each interface separately.
Speedometer & Tachometer Cables questions
Why can the speedometer still jump or make noise after a cable change?
Inspect the instrument and wheel-drive unit for wear or binding as well as the cable. Check for sharp bends or tension and fully seated ends; follow the cable maker’s lubrication instructions. A replacement cable cannot repair a worn or binding drive or gauge.
What should I check after relocating the tachometer?
Confirm its connection and the route and reach required from the drive. The standard cable application does not verify every new bracket position or altered cockpit layout.
When would a tachometer-drive block-off be relevant?
A block-off is relevant when the mechanical tachometer cable is no longer used and its opening needs sealing. Product 73-0884 includes an O-ring and specifies an approximately 15 mm cable-end fitting with a 10.5 mm groove and screw retention. Follow its fitting instructions rather than assuming which internal drive parts can remain.
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