Checking The Crankshaft - Yamaha Rhino 450 YXR45FAV Service Manual

CRANKSHAFT AND OIL PUMP
3. Check:
• oil pump operation
Unsmooth → Repeat steps #1 and #2 or
replace the defective parts.

CHECKING THE CRANKSHAFT

1. Measure:
• crank width A
Out of specification → Replace the crank-
shaft.
• side clearance D
Out of specification → Replace the crank-
shaft.
• runout C
Out of specification → Replace the crank-
shaft.
M MMM
The crankshaft 1 and the crank pin 2 oil pas-
sages must be properly interconnected with a
tolerance of less than 1 mm (0.04 in).
L LLL
4 - 68
ENG
Crank width
62.95 ~ 63.00 mm
(2.4783 ~ 2.4803 in)
Big end side clearance
0.25 ~ 0.75 mm
(0.0098 ~ 0.0295 in)
<Limit>: 1.0 mm (0.0394 in)
Runout limit
C1: 0.03 mm (0.0012 in)
C2: 0.03 mm (0.0012 in)
M MMM M M MMM M M MMM M M MMM
L LLL L L LLL L L LLL L L LLL
M M MMM M MMM
L L LLL L LLL