Spark Plug Inspection - Yamaha FZR400 1988-1989 Service Manual

SPARK PLUG INSPECTION

Throttle Cable Free Play
(Throttle Grip) @ :
2 - 5 mm (0.08 - 0.20 in)
I
??
Tighten the locknut @ .
NOTE:
Normally, once the throttle cable length adjuster
(carburetor) is properly set; the only adjustment
required is maintenance of free play at the
throttle cable length adjuster (Throttle grip).
SPARK PLUG INSPECTION
1. Inspect:
Electrode @
? ?
Wear/ Damage-t Replace.
*Insulator color @
Normal condition is a medium to light tan
color.
Distinctly different color-+Check the engine
condition.
2. Clean:
Clean the spark plug with a spark plug
cleaner or wire brush.
3. Inspect:
*Spark plug type
Incorrect4 Replace.
Standard Spark Plug:
3-19
I