2-28 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Remove the number plate (see Number Plate Removal in
the Frame chapter).
Slide the dust cover [A].
Loosen the locknut [B] at the clutch cable, and turn the
adjusting nut [C] so that clutch lever has 8 ∼ 13 mm (0.3
∼ 0.5 in.) of play.
Tighten the locknut, and start the engine and check that
the clutch does not slip and that it release properly.
Clutch Plates Inspection
Remove the clutch plates (see Clutch Removal in the
Visually inspect the friction and steel plates to see if they
show signs of seizure, uneven wear or any other damage.
If any plates show signs of damage, replace the friction
plates and steel plates as a set.
Measure the thickness [A] of the friction and at several
points with vernier calipers.
Friction Plate Thickness
2.92 ∼ 3.08 mm (0.115 ∼ 0.121 in.)
2.7 mm (0.11 in.)
If they have worn past the service limit, replace them with
Place each friction plate or steel plate on a surface plate
Measure the gap between the surface plate and each fric-
tion plate or steel plate [B] with a thickness gauge [C]. The
gap is the amount of friction or steel plate warp.
Friction and Steel Plates Warp
Friction Plate 0.15 mm (0.0059 in.) or less
0.20 mm (0.0079 in.) or less
Friction Plate 0.3 mm (0.012 in.)
0.3 mm (0.012 in.)
If any plate is warped over the service limit, replace it with
a new one.
Engine Lubrication System
Vehicle operation with insufficient, deteriorated,
or contaminated engine oil will cause accelerated
wear and may result in engine seizure, accident,
and injury. Check the oil level before each use and
change the oil and filter according to the periodic