8-18 ENGINE BOTTOM END

Crankshaft and Connecting Rods

Crankshaft Removal

Split the crankcase (see Crankcase Splitting).

Remove:Camshaft Chain [A]

Oil Pump Sprocket Chain [B]

Remove the crankshaft [C] with the oil seal [D].

Crankshaft Installation

CAUTION

If the crankshaft, bearing inserts, or crankcase halves are replaced with new ones, select the bear- ing inserts and check clearance with a plastigage before assembling engine to be sure the correct bearing inserts are installed.

Fit the crankshaft main bearing inserts on the upper [A] and lower [B] crankcase halves.

#1, 5 Bearing Inserts (no Groove, same) #2, 4 Bearing Inserts (Groove, same) #3 Bearing Insert (no Groove)

NOTE

Be sure the bearing inserts are seated in the saddles, and the tangs in the bearing inserts are aligned with the notches in the saddles.

Apply molybdenum disulfide oil solution to the crankshaft main bearing inserts.

Fit the thrust washers [A] to both sides of the upper crankcase #3 main bearing [B].

Install the thrust washer so that the oil grooves [C] face outward.

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Kawasaki STX-15F service manual Crankshaft and Connecting Rods, Crankshaft Removal, Crankshaft Installation