Polaris 2000 Victory Special Edition - Manual (Page 43)

36
MAINTENANCE
Spark Plug Inspection
Specified Spark Plug RA8GHC Champion
Spark Plug Gap 0.040″ (1.0 mm)
Tightening Torque 12 -- 14 ft. lbs.
The condition of the spark plugs
can often times indicate abnor-
mal engine conditions. They are
important engine components
and are easy to check. Refer to
page 12 for spark plug location.
You should periodically remove
and inspect the spark plugs be-
cause heat and deposits will
cause any spark plug to erode
away its electrodes. If electrode
erosion is excessive or if foreign
deposits are excessive, you
should replace the spark plug
with the specified spark plug.
Normally, both of the spark plugs from the same engine should have the same color
on the spark plugs center insulator. The ideal color is a medium tan color for a mo-
torcycle being operated normally. If one or more spark plugs show a distinctive dif-
ferent color it could be an indication of an engine problem. Do not attempt to diag-
nose such problems yourself. Have your Victory dealer determine what, if
anything, is wrong with your motorcycle.
Always measure the electrode gap with a wire type thickness gauge before instal-
ling new or used spark plugs in your engine. If necessary, adjust the electrode gap
to the specifications.
Before installing the spark plugs, clean the gasket surface. Ensure that the spark
plug’s threads are clean and undamaged. It is a good idea to put a drop of clean
engine oil or a very small amount of anti-seize compound on the spark plug’s
threads before installation. Tighten the spark plugs to the specified torque value.
CAUTION Do not over-tighten or under-tighten the spark plug. Looseness
can cause pre-ignition because heat is not dissipated through the threads. Exces-
sive tightness can damage the threads of both the cylinder head and spark plug.