12-4-9 TAPPET ADJUSTMENT
Set the tappet at
using a clearance gauge inserted into the clearance. (See Fig.
NOTE: As with the intake and exhaust valves, the clearance between the valve and tappet stem must be within 0.1 f. 0.02.
INTAKE & EXHAUST | VALVE | VALVE | SPRING |
NCE GAUGE
Fig. | Fig. |
NOTE: If the clearance is smaller than that specified, slightly grind down the valve stem end using a grinder, then measure the clearance.
If the clearance is larger than that specified, replace the valve with a new one. Spot the valve seat and use some compound to adjust the clearance.
NOTE: After completing adjustment of tapper clearance, install the valve spring retainers, and then recheck the tappet clearance.
*Installing the valve spring retainer:
Using the special tool. place the retainer over the valve stem with the notch in the outside periphery of the retainer kept toward the front.
12-4-10 INSTALLING THE CYLINDER HEAD
@
1
FRONT
Fig.
Before reinstalling the cylinder head. be sure to remove carbon deposits from the combustion chamber. and clean between the cooling fins. Also check the cylinder head for levelness.
NOTE: Replace the cylinder head gasket with a new one.
The cylinder head is installed using seven 516 x 32mm bolts.
NOTE: | Torque for each cylinder head lock bolt: 90 - 7 70 |
12-4-11 INSTALLING THE SPARK PLUG
Torque for spark plug: 120 - 130 kg-cm
12-4-12 INSTALLING THE CYLINDER BAFFLE
The cylinder baffle is installed to the crankcase, using the M6 x 20mm screw and to the main bearing cover. using the M5 x 1Omm screw.
The cylinder baftle and fuel line clamp are installed. together to the crankcase.