Spark Plugs; Removal; Inspection; Installation - Cub Crafters CC18-180 Maintenance Manual


Intermediately tighten both nuts to 100 in/lbs.

Finally tighten both nuts alternately, in several steps, to 200-208 in/lbs.

Recheck the timing. If it has changed, loosen the nuts, readjust and repeat the
torquing procedure.

Reconnect the P-lead ground shields with a screw to the proper magneto case.
Torque to 18-20 in/lbs.

Reconnect the P-leads and tighten the nuts to 13-15 in/lbs.

Reposition the respective harness caps, insert the 3 harness cap screws and
tighten to 18-20 in/lbs.
TURN THE MAGNETO SWITCHES OFF SO THE ENGINE CANNOT ACCIDENTALLY BE
B. SPARK PLUGS

(1) REMOVAL

(c) Unscrew all the spark plug caps.
(d) Unscrew all the spark plugs.

(2) INSPECTION

(a) Inspect the firing end of the spark plugs for any foreign material lodged between
electrodes or around the insulator that could be conductive. Clean as needed.
(b) Check the electrode gap. It should be between 0.016 and 0.021 ins. Re-set if
necessary.
(c) Check connector for any abnormalities and clean if needed.

(3) INSTALLATION

(a) Apply a small amount of Spark Plug Thread Lubricant (Refer to section 12-20) to
the threaded area of each spark plug at the firing end. Using a new gasket, install
the plugs and torque to 415-425 in/lbs.
(b) Connect the spark plug caps and torque to 80-90 in/lbs.
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CUB CRAFTERS, INC.
CC18-180 MAINTENANCE MANUAL
WARNING
STARTED.
Manual number TC10000AMM
Date: 05/20/08