Yamaha YZ125(W)/W1 Owner's Service Manual page 346

CRANKCASE AND CRANKSHAFT
4-66
2. Check:
9 Shifter operation
9 Transmission operation
Unsmooth operation ¡ Repair.
3. Apply:
9 Sealant
On the crankcase (right) 1
Yamaha bond No. 1215
(ThreeBond
90890-85505
NOTE:
Clean the contacting surface of crankcase (left
and right) before applying the sealant.
4. Install:
9 Dowel pin 1
9 O-ring 2
ENG
® No. 1215):