Valve Clearance - Honda CB TWISTER Owner's Manual

5. Make sure the plug washer is in good
condition.
6. Washer of the plug attached thread the
spark plug in by hand prevent cross
threading.
(3) Spark plug gap ¼LikdZ Iyx xS i ½
(4) Side electrode ¼lkbZ M bZ y S D Vª k s M ½
7. Tighten the spark plug:
• If the old plug is good
1/8 turn after it seats.
• If installing a new plug, tighten it
twice to prevent loosening:
a) First tighten the plug:
NGK:1/2 turn after it seats.
b) Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
50
NOTICE
Improperly tightened
 Too loose:- Can damage the engine or
can burn a piston.
 Too tight:- Can damage the threads of
cylinder head.
8. Reinstall the spark plug cap. Take care
to avoid pinching any cables or wires.

VALVE CLEARANCE

Should be serviced by your Honda dealer,
unless the owner has the proper tools and
service data and is mechanically qualified.
Refer to the Official Honda Shop Manual.
Excessive valve clearance will cause noise
and eventual engine damage. Little or no
clearance will prevent the valve from closing
and cause valve damage and power loss.
Check the valve clearance at the specified
intervals when the engine is in cold condition.
The checking or adjusting of the clearance
should be performed while the engine is cold.
spark plug:-