I
9. MAINTENANCE ,
SPARK PLUG SERVICE
Recommended spark plugs: $lGK BPR5ES
ND 16EPR-U
CHAMPION RNIZY
r-GET-l Spark plugs of the wrong heat range can cause engine
damage.
l%r good performance, the spark plug must be properly gapped and free of
deposits.
1. Disconnect the spark plug cap, and remove any dir-t from around the spark
plug area.
.m Touching the engine or exhaust system while hot can
cause burns. Let the engine cool before servicing.
2. Remove the spark plug with a.,spark plug wrench.
3. Inspect the spark plug. Replace it if the electrodes are worn, or if the insulator
is cracked or chipped. Clean the spark plug with a wire brush if you are
going to reuse it. .:
4. Measure the spark plug electrode gap with a,feeler gauge. The gap should
be 0.024-0.028 in (0.6-0.7 mm). Correct the gap as necessary by carefully
bending the side electrode. -
5. Install the spark plug carefully, by hand, to avoid cross-threading.
6. After the spark plug-is seated, tighten with a spark plug wrench to compress
the washer.
II
.A loose spark- plug can get hot enough to damage the
engine. Overtightening may damage the threads.
NOTE: If installing a new spark plug, tighten 1
seats to compress the washer. If reinstalling
1 /8_1/4 turn after the spark plug seats.
7. Install the spark plug cap on the spark plug.
SPARK PLUG
CAP ,,,,f.
I2 turn after the spark plug
a used spark plug; tighten
0.024-0.028 in.
(0.8-0.7 mm)
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SPARK PLUG GRENCH