650 - 650NK - Techinical Service Manual.pdf - Mojo Motorcycles

PERIODIC MAINTENANCE 2-27
Wheel Bearing Damage Inspection
• Raise the front wheel off the ground with jack (see
Front Wheel Removal in the Wheels/Tires chapter).
• Turn the handlebar all the way to the right or left.
• Inspect the roughness of the front wheel bearing
by pushing and pulling [A] the wheel.
• Spin [B] the front wheel lightly, and check for
smoothly turn, roughness, binding or noise.
If roughness, binding or noise is found, remove the
front wheel and inspect the wheel bearing (see
Front Wheel Removal, Hub Bearing Inspection in
the Wheels/Tires chapter).
• Raise the rear wheel off the ground with stand
(see Rear Wheel Removal in the Wheels/Tires
chapter).
• Inspect the roughness of the rear wheel bearing
by pushing and pulling [A] the wheel.
• Spin [B] the rear wheel lightly, and check for
smoothly turn, roughness,binding or noise.
If roughness, binding or noise is found, remove the
rear wheel and inspect the wheel bearing (see
Rear Wheel Removal, Hub Bearing Inspection in
the Wheels/Tire chapter) and coupling (see Coupling
Bearing Inspection in the Final Drive chapter).
Drive Train
Drive Chain Lubrication Condition Inspection
• If a special lubricant is not available, a heavy oil
such as SAE 90 is preferred to a lighter oil be
cause it will stay on the chain longer and provide
better lubrication.
• If the chain appears especially dirty, clean it
before lubrication.
CAUTION
The O-rings between the side plates seal in
the lubricant between the pin and the
bushing. To avoid damaging the O-ring and
resultant loss of lubricant,observe the following
rules. Use only kerosene or diesel oil for
cleaning and O-ring drive chain. Any other
cleaning solution such as gasoline or trichloroethylene
will cause deterioration and
swelling of the O-ring. Immediately blow the
chain dry with compressed air after cleaning.
Complete cleaning and drying the chain
within 10 minutes.