04-22-2018, 11:37 PM
If the service manual is not available:
Loosen the balancer shaft holder pinch bolt. Turn the balance shaft counterclockwise until resistance is felt, then back it off three graduations using the punch mark as a measure.
Warm up the engine and let it idle. If balancer gear noises are excessive, adjust the balancer backlash as follows:
Turn the balance gear shaft counterclockwise until the gears begin to make a "whining" noise. Then turn the gear shaft clockwise until the gear "whining" noise disappears.
Tighten the balancer shaft pinch bolt. After all gear backlash adjustments are done, snap the throttle and make sure the gear noises are not excessive.
If the gear "whine" noise is excessive, the backlash is too small. If the gear "rattling" noise is excessive, the backlash is excessive.
Loosen the balancer shaft holder pinch bolt. Turn the balance shaft counterclockwise until resistance is felt, then back it off three graduations using the punch mark as a measure.
Warm up the engine and let it idle. If balancer gear noises are excessive, adjust the balancer backlash as follows:
Turn the balance gear shaft counterclockwise until the gears begin to make a "whining" noise. Then turn the gear shaft clockwise until the gear "whining" noise disappears.
Tighten the balancer shaft pinch bolt. After all gear backlash adjustments are done, snap the throttle and make sure the gear noises are not excessive.
If the gear "whine" noise is excessive, the backlash is too small. If the gear "rattling" noise is excessive, the backlash is excessive.