Yamaha F150 [130/313] Checking the crankpin oil clearance

POWR

Power unit

5-45

63P3F11

Checking the crankpin oil clearance

1. Clean the bearings and the connecting

rod.

2. Install the upper bearing into the con-

necting rod

and the lower bearing into

the connecting rod cap

NOTE:

Install the connecting rod bearings in their

original positions.

3. Put a piece of Plastigauge (PG-1) onto

the crankpin, parallel to the crankshaft.

NOTE:

Be sure not to put the Plastigauge (PG-1)

over the oil hole in the crankpin of the crank-

shaft.

4. Install the connecting rod to the crankpin

NOTE:

Make sure that the mark

of the connecting

rod faces towards the flywheel magnet side

of the crankshaft.

5. Tighten the connecting rod bolts to the

specified torques in three stages.

NOTE:

• Reuse the removed connecting rod bolts

when checking the oil clearance.

• Do not turn the connecting rod until the

crankpin oil clearance measurement has

been completed.

• Make a mark

on the connecting rod

bolts, connecting rod caps, and then tighten

the bolts 90° from the mark.