18
IDLE SPEED
If the engine is cold, start it and run for 10 minutes
of stop-‐and-‐go riding, then turn the engine off.
CAUTION:
Make sure the engine is fully warm before adjusting
the idle speed. Adjusting the idle speed before the
engine is warm could result in excessive engine wear.
Park the motorcycle on a level surface and use the
side stand to support.
Connect tachometer to the engine.
Shift into neutral and start the engine.
Adjust the idle speed as needed by turning the
throttle stop screw. The correct idle speed (in
neutral) should be 1500 ± 50 rpm.
SPARK PLUG
CAUTION:
Use only recommended spark plug: NGK D8TC or a
suitable equivalent. Using an incorrect spark plug in
the improper heat range for this engine could cause
severe engine damage and void the warranty.
To replace:
Clean any dirt around the spark plug base.
Disconnect the spark plug caps and make certain
you do not damage the wires.
Remove the spark plug using the spark plug wrench
pro-‐ vided in the tool kit.
Inspect the electrodes on the spark plug for
corrosion and deposits. Replace if a large amount of
corrosion is present.
Using a wire-‐type feeler, check the gap on every
new spark plug. The proper gap is .024-‐.028 in. (.6-‐
.7 mm).
Thread spark plug in by hand to prevent cross
threading.
Tighten with the spark plug wrench. Rotate
additional 1/8 to 1/4 turn (if reinstalling old spark
plug) or 1/2 turn (if new spark plug) after plug
seats.
Reinstall spark plug caps.
CAUTION:
Incorrect tightening of the spark plug can cause
severe damage to the engine. Too loose can damage
piston; too tight can damage the threads .