CHAPTER 3A ENGINE 260/ 300 / 400 cc ATV SERVICE MANUAL09.0
CHAPTER 3 ENGINE PAGE. 3A- 59
Order Job name/ Part name Q'ty Remarks
3
4
5
6
7
8
9
10
Timing chain guide (intake)
Crankcase (right)
Dowel pin
Crankshaft assembly
Timing chain
Crankcase (left)
Oil seal
Oil seal
1
1
2
1
1
1
1
Refer to "CRANKSHAFT INSTALLATION"
section.
Refer to "CRANKSHAFT REMOVAL/
INSTALLATION" section.
Reverse the removal procedure for
installation.
CRANKSHAFT REMOVAL
1. Remove:
zCrankshaft assembly
zTiming chain
NOTE:
zBefore removing the crankshaft assembly,
remove the timing chain from the crankshaft
sprocket.
zIf the timing chain hooks to the crankshaft
sprocket, the crankshaft cannot be removed.
CRANKSHAFT INSPECTION
1. Measure:
zCrankshaft runout
Out of specification → Replace crankshaft
and/or bearing.
NOTE:
Measure the crankshaft runout with the
crankshaft assembly running slowly.
Runout limit:
0.03 mm
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