Yamaha 1999 SR125 Manuale di servizio - Pagina 22

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CYLINDER HEAD

WARNING

Always use a new gasket.

Timing chain tensioner bolt

10 Nm (1.0 mSkg)

d. Remove the screwdriver, make sure that the

timing chain tensioner rod releases, and

tighten the cap bolt to the specified torque.

Cap bolt

10 Nm (1.0 mSkg)

6. Tighten:

S Bolt (timing chain)

NOTE:

Install the bolt while holding the magneto

mounting bolt with a wrench.

7. Turn:

S crankshaft

(several turns counterclockwise)

8. Check:

S Magneto rotor slit

Align the stationary pointer with the crank-

case cover (left).

S Cam sprocket "I" mark

Align the stationary pointer with the cylinder

head.

Out of alignment ! Adjust.

9. Check:

S Valve clearance

Refer to "VALVE CLEARANCE ADJUST-

MENT" section in CHAPTER 3.

–14–

ENG

60 Nm (6.0 mSkg)