Chapter 3 Engine Section 4 Inspection and maintenance of engine componenets
3—40
Standard
Thickness of shifting fork
No．Ⅰ：4．8—4．9mm
No．Ⅲ：5．3—5．4mm
As in Fig.3.4.79
Primary driven gear
If the inner sleeve wears, it creates a gap between the
gear and hub wheel, which can cause abnormal noise.
If the clearance is too large, the primary driven gear
needs to be replaced with a new one.
Primary driven gear①
② the buffer block
③ Clutch hub wheel
As in Fig.3.4.80
Clutch
Clutch active friction plate
The thickness of clutch friction plate and the width of
clutch claw were measured by vernier caliper.
If the clutch plate is not within the service limit, the clutch
plate should be replaced in a set.
Thickness: 2.9-3.1 mm
Limit of use: 2.6 mm
As in Fig.3.4.81
Tools: vernier calipers
Use limit
Width：11mm Groove：2—
0
1.0
12
mm
Width：11．4mm Groove：8—
0
2.0
12
mm
As in Fig.3.4.82
Clutch driven plate
Use feeler gauge to measure whether each clutch
driven plate is deformed.
If the driven piece is not within the limits of use, the
whole set should be replaced.
Tools: feeler gauge
Limit of use: 0.10 mm
As in Fig.3.4.83
Fig.3.4.79
Fig.3.4.80
Fig.3.4.81
Fig.3.4.82
Fig.3.4.83
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