Checking The Crankpin Oil Clearance - Yamaha F200C Service Manual

POWR
Crankshaft journal diameter a:
62.968–62.992 mm
(2.4791–2.4800 in)
Crankpin diameter b:
49.976–50.000 mm
(1.9676–1.9685 in)
Crankpin width c:
21.50–21.55 mm
(0.8465–0.8484 in)
2. Measure the crankshaft runout. Replace
the crankshaft if out of specification.
Crankshaft runout limit:
0.03 mm (0.0012 in)

Checking the crankpin oil clearance

1. Clean the bearings and the connecting
rod.
2. Install the upper half of the bearing into
the connecting rod 1 and the lower half
into the connecting rod cap 2.
3. Insert the projection a of the bearing into
the slot on the cap and connecting rod.
5-51
Power unit
S69J5C80
NOTE:
Install the connecting rod bearings in their
original positions.
4. Put a piece of Plastigauge
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.
5. Install the connecting rod to the crankpin
3.
®
(PG-1) onto
69J1D11