Yamaha 4SH-28199-67 Owner's Manual page 272

1. Oil gallery bolt
1. Boulon de rampe de graissage
1. Perno del conducto de aceite
2. Cloth
2. Chiffon
2. Trapo
8-21
Oil pressure check
1. Put a cloth around the cylinder.
2. Slightly loosen the oil gallery bolt in the
cylinder head.
3. Start the engine and keep it idling until oil
begins to seep from the oil gallery. If no oil
comes out after one minute, turn the en-
gine off so it will not seize and find the
cause.
4. Restart the engine and check the oil pres-
sure.
5. After checking, tighten the oil gallery bolt
to specification.
Tightening torque:
Oil gallery bolt:
7 Nm (0.7 m·kg)
CAUTION:
Be sure to inspect the oil pressure after replac-
ing the engine oil.
6. Install the clamp.