4-54
Engine Servicing
(1) GEAR HOLDER
(2) PRIMARY DRIVE GEAR
(3) BALANCER DRIVEN GEAR
Balancer
Removal
Hold the primary drive and driven gear with gear
holder.
Tool:
Gear holder
07724-0010100
Loosen the balancer driven gear lock nut, remove
the lock nut and lock washer.
(1) WATER PUMP DRIVE GEAR
(2) BALANCER DRIVEN GEAR
(1) BALANCER SHAFT
(1) BALANCER SHAFT
Inspection
Turn the balancer shaft bearing inner race with your
finger. Check that the bearing turns smoothly and
quietly.
Replace the bearing if it does not turn smoothly or
loosely fits in the crankcase.
Check the balancer shaft for damage.
Remove the water pump drive gear and balancer
driven gear from the balancer shaft.
Separate the crankcase halves (page 4-68).
Remove the balancer shaft from the left crankcase.
(1)
(2)
(3)
(2)
(1)
(1)
(1)
Summary of Contents for NSF250R 2012
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