Disassembly; Inspection - Yamaha BR250F Service Manual

B. Disassembly
1. Install the sheave subassembly tool in
the primary sheave.
Primary sheave subassembly tool:
90890-01858
1. Sheave sub-assembly tool
2. Loosen the six sheave-cap bolts.
3.
Remove the sheave subassembly tool,
and remove the sheave cap.
C. Inspection
1. Inspect the tapered ends of the crank-
shaft and the primary fixed sheave for
scartches. If either is severely scratched,
replace it. If scratches are minor, burnish
the component with emery cloth.
2. Check the primary sheave cap bushing
and the sliding sheave bushing for wear.
If worn beyond tolerance, replace the
bushing.
Use the bushing tool if a bushing is diffi-
cult to remove.
Bushing tool: 90890-01883
1. Bushing tool
4-5
r.
Bushing clearance, limit
Small bushing
Large bushing
Inside 0.25 mm (0.01 in) 0.25 mm (0.01 in)
Outside 0.25 mm (0.01 in)
0.25 mm (0.01 in)