Suzuki EN125-2A, Service Manual

Page: 73 / 208

3-41 ENGINE
PRIMARY DRIVEN GEAR
Primary dr ven gear is composed as shown. i
Ù
Primary driven gear
Damper
Plate
Rivet
Clutch housing
If the internal damper wears, play is generated
between gear and housing, causing abnormal
noise. If the play is extreme, replace the primary
driven gear assembly with a new one.
Service limit 129.9 mm
CAM CHAIN 20-PITCH LENGTH
Pull the chain tight to remove any slack, then
using vernier calipers, measure the 20-pitch (21
pins) length of cam chain. If it measures more than
the limits, replace the cam chain.
CRANKCASE BEARING
Inspect the play of crankcase bearing inner race
by hand while fixing it in the case.
Rotate the inner race by hand to inspect for an
abnormal noise and a smooth rotation. Replace
the bearing if there is something unusual.
STARTER CLUTCH BEARING
I n s p e c t t h e b e a r i n g f o r a n y a b n o r m a l i t y,
particularly cracks, to decide whether it can be
reused or should be replaced.
5
4
3
1
2
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