Valve Clearance - Suzuki LT-Z90 Manual

2-6 PERIODIC MAINTENANCE

VALVE CLEARANCE

Inspect initially at 1 month and every 6 months there-
after.
Excessive valve clearance results in valve noise and insufficient
valve clearance results in valve damage and reduced power.
Check the intake and exhaust valve clearances at the interval
indicated above and adjust the valve clearances to specification,
if necessary.
• Remove the spark plug cap and spark plug. (
• Disconnect the breather hose 1 .
• Remove the cylinder head cover 2 .
Remove the valve timing inspection plug 3 and generator cover
cap 4 .
NOTE:
* Valve clearance is to be checked when the engine is cold.
* The intake and exhaust valves must be checked and adjusted
when the piston is at Top-Dead-Center (TDC) of the compres-
sion stroke.
• Rotate the crankshaft with a box wrench to set the piston at
TDC on the compression stroke. (Rotate the crankshaft until
the line A on the generator rotor is center of the hole in the
generator cover.)
• Align the engraved line 5 on the camshaft so it is parallel with
surface on the cylinder head.
2-8)