Kawasaki WORKHORSE 250 (2003) [154/322] Crankshaft runout

9-14 CRANKSHAFT/TRANSMISSION

Crankshaft/Balancer Shaft and Connection Rod

Crankshaft Alignment

•

Check crankshaft alignment by measuring runout.

○

With the crankshaft in an alignment jig, turn the crank-

shaft slowly and measure runout at each of the locations

shown.

[A] 10.5 mm (0.413 in.)

Crankshaft Runout

Standard: TIR 0.04 mm (0.0016 in.) or less

Service Limit: TIR 0.1 mm (0.0039 in.)

If runout at either location exceeds the service limit, align

the crankshaft so that runout is within the service limits.

•

In the case of horizontal misalignment, strike the project-

ing crankshaft half with a plastic, soft lead, or brass ham-

mer as shown.

•

Recheck the runout and repeat the process until the

runout is within service limits.

○

Vertical misalignment is corrected either by driving a

wedge in between the crank halves, or by squeezing the

crank halves in a vise, depending on the nature of the

misalignment.

•

In the case of both horizontal and vertical misalignment,

correct the horizontal misalignment first.

•

Recheck big end side clearance after aligning crankshaft

(see Connecting Rod Big End Side Clearance).

NOTE

○

If crankshaft alignment cannot be corrected by the

above method, replace the crankpin or crank halves as

required.

CAUTION

Don’t hammer the flywheel at the point [A].