Yamaha VK10L Mode D'emploi page 162

DRIVE CHAIN HOUSING
2. Inspect:
• Drive sprocket 1
• Forward driven sprocket 2
• Reverse driven gear 3
• Reverse drive gear 4
• Counter gear 5
• Journal 6
• Chain tensioner 7
Pitting/wear/damage → Replace.
• Drive chain 8
Wear/damage → Replace.
Shift → Clean or replace.
• Shift lever assembly 9
• Bearing (chain tensioner) 0
Pitting/damage → Replace the bearing and
the inner race holder as a set.
3. Measure:
• 14 link section a of the drive chain
Using a spring scale, pull on the drive chain
with 36 kg (80 lb) of force b.
Out of specification → Replace the drive
chain.
Maximum 14 link drive chain section
length:
133.35 mm (5.25 in)
Limit: 137.35 mm (5.41 in)
NOTE:
• Measure the length between drive chain pin 1
and E as shown.
• Perform this measurement at two or three differ-
ent places.
If replacement is necessary, always replace the
chain and the sprockets as a set.
4. Inspect:
• Drive chain 1
Stiffness → Clean and lubricate or replace.
• Drive chain plates 2
Damage/wear → Replace the drive chain.
Cracks → Replace the drive chain.
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