Maintenance and troubleshooting, Spark plug adjustment and replacement – MK Diamond MK-2005G User Manual
Page 40

MK-2005G
Revision 12/00, Effective Date December 26, 2000
Page 40
MAINTENANCE AND TROUBLESHOOTING
16. Spark Plug Adjustment and Replacement:
DO NOT work around the engine while hot.
NOTE: 1. Recommended spark plugs are: NGK – BPR6ES or DENSO – W20EPR-U
2. When installing the Spark Plug, ensure the threads of the are aligned with the threads in the
engine so as not to “cross-thread" the plug.
(D)
Clean with a wire brush and
re-gap the Spark Plug
(C)
Inspect Spark Plug
if worn replace Spark Plug
and go to step E
(B)
Remove Spark Plug
(A)
Remove Spark Plug Cap
clean cap and around
spark plug
(F)
Tighten the Spark Plug
If new, tighten 1/2-turn
If old, tighten 1/8-1/4 turn
(E)
Install the Spark Plug by Hand
DO NOT cross-thread
the Spark Plug
(G)
Install the Spark Plug Cap
verify the Spark Plug Cap
is seated
Gap Setting
0.028 – 0.031 in
(0.70 – 0.80 mm
Spark Plug
Cap
Pull back to
remove
Clean
13/16-inch
Socket
Turn counter-
clockwise to
loosen
Electrode
not worn
No chips
or cracks
Set Gap
Seat by Hand
Turn clockwise
to tighten
13/16-inch
Socket
Spark Plug
Cap
Push onto
Spark Plug