Motorcycle Transmission

Transmission vibration under load can be caused by:

• Worn clutch friction plates

• Worn gear dogs

• tight spots in the drive chain

• excessive backlash in the clutch shock absorber

In the gearbox illustration, if the 6th shifted gear on the driveshaft is moved to the left, which gear is enaged?

• Second

• Third

• Fourth

• Sixth

A customer complains of a "crashing sound" when engaging 1st gear from neutral.

• worn dogs on first gear

• over tight drive chain

• clutch drag

• faulty selector mechanism

Which of the following is NOT a probable cause of the gear failure shown?

• Improperly fitted gear circlip

• Bent gear selector fork

• Gear Lever return spring worn

• Excessive cam selector drum end float

What type of of gearbox is normally used in motorcycles?

• Constant mesh

• Constant Engagement

• Sliding engagement

• Sliding Mesh

A clutch has excessive free play, This could:

• Cause the clutch to occasionally slip

• make it difficult to disengage the clutch

• Make the clutch wear excessively

• Make it difficult to engage the clutch

A customer complains about imprecise and notchy gear shifting. Which of the following is the most likely to be faulty?

• Sticking pawls

• Worn cam grooves

• Broken gear shift shaft

• Worn shift forks

Severe tight spots have developed in a rear drive chain. What is the most likely cause?

• The chain has been run too loose

• The chain has been run over tight

• The sprockets have worn eccentrically

• A faulty chain.

The purpose of the cush drive within the rear wheel sprocket carrier is to:

• Reduce chain noise

• reduce vibration

• reduce shock loading on the transmission

• protect the rear wheel bearings

The name commonly given to the foot change selector mechanism is:

• Positive stop

• Shift return

• Positive Shift

• Positive return