Honda CB750-4 SOHC Repair Manual 1969-1978

• Honda CB750 (K1-K6) 1969-1978
• Honda CB750F 1975-1978
• Honda CB750A Hondamatic (automatic transmission) 1976-1978

MAGNETIC SWITCH

A solenoid switch is used to supply the heavy current for operating the starting motor. When the push button starting switch is pressed, the solenoid coil is energized and becomes an electromagnet that draws the iron core to it.

The circuit is completed when the contacts meet. A return spring pulls the iron core back to break the circuit when the push switch is released.

1. Remove the left side cover and disconnect the lead from the starting motor (Figure 35). Remove the cover.



2. Depress the starter switch and listen for the click of the iron core contacting the coil.



3. Check the condition of the contact points and dress with a point file if they are pitted or burned.

FRONT WHEEL

REMOVAL/DISASSEMBLY

Refer to Figure 1 for details of the front wheel assembly.

1. Place a block under the front of the engine so the wheel is raised clear off the ground.



2. Remove the speedometer cable (Figure 2) at the hub.



3. Remove the axle holding nuts. Remove the wheel from the forks.


NOTE: Do not work the brake lever when the wheel is off the motorcycle, or the caliper piston will be forced out of the cylinder.


4. Unscrew the axle nut (Figure 3) and remove the axle.



5. Remove the gearbox for the speedometer.



6. On models equipped with lock plates, straighten the lock plates. On all models, unscrew the nuts from the wheel (Figure 4) and remove the disc.



7. Remove the bearing retainer from the hub (Figure 5) and remove the dust seal from the retainer.



8. Remove the bearing.

• General Information
• Troubleshooting
• Lubrication, Maintenance and Tune-up
• Engine
• Clutch and Transmission
• Fuel and Exhaust Systems
• Ignition System
• Front Suspension and Steering
• Rear Suspension
• Brakes
• Body and Frame
• Wiring Diagrams