HYOSUNG RX 125 Service Manual page 64

Push the big end of the conrod to one side and
measure its side clearance with a thickness gauge.
Clearance standard on
big end of conrod
0.10~0.45 mm
Thickness gauge : 09900-20803
When the limit is exceeded, replace crankshaft assem-
bly or reduce the deflection and the side clearance to
within the limit by replacing the worn parts-conrod, big
end bearing, crankpin and thrust washers, etc.
CRANKSHAFT RUNOUT
Support the crankshaft with "V"blocks as shown, with
the two end journals resting on the blocks.
Position the dial gauge, as shown, and rotate the
crankshaft slowly to read the run out.
Correct or replace the crankshaft if the runout is greater
than the limit.
Crank shaft runout
CLUTCH DRIVE PLATE
Measure the thickness and claw width of each drive
plate with vernier calipers.
Replace the drive plates found to have worn down to the
limit.
Vernier calipers : 09900-20101
Thickness of clutch drive plate
Claw width of clutch drive plate
Service limit on big end
of conrod
1.00 mm
Service limit 0.05 mm
Standard Serivice limit
2.9~4.1 mm 2.6 mm
11.8~12.0 mm 11.0 mm
ENGINE 3-34
Checking thickness
Checking claw width