Pinion and Over-running Clutch

Inspect the pinion for wear, damage or other abnormal conditions.
Check that clutch locks up when turned in direction of drive and rotates smoothly in reverse direction. Replace if necessary.

Fig 1: Checking Pinion And Over-Running Clutch
Courtesy of SUZUKI OF AMERICA CORP.
Inspect the spline teeth for wear or damage. Replace if necessary.
Inspect the pinion for smooth movement.

Fig 2: Locating Spline Teeth
Courtesy of SUZUKI OF AMERICA CORP.