Checking the Spark Plug
Important:
Never clean the spark plug(s). Always
replace the spark plug(s) when it has: a black
coating, worn electrodes, an oily film, or cracks.
If you see light brown or gray on the insulator, the
engine is operating properly. A black coating on the
insulator usually means the air cleaner is dirty.
Set the gap to 0.030 inches (0.76 mm).
G008794
1
2
Figure 52
Installing the Spark Plug
Tighten the spark plug(s) to 16 ft.-lb (22 N-m).
Figure 53
Check Spark Arrester (if
equipped)
Service Interval:
Every 50 hours
Hot exhaust system components may ignite
gasoline vapors even after the engine is
stopped. Hot particles exhausted during engine
operation may ignite flammable materials.
Fire may result in personal injury or property
damage.
Do Not refuel or run engine unless spark
arrester is installed.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Wait for muffler to cool.
3. If any breaks in the screen or welds are observed,
replace the arrester.
4. If plugging of the screen is observed, remove the
arrester and shake loose particles out of the arrester
and clean screen with a wire brush (soak in solvent if
necessary). Reinstall arrester on exhaust outlet.
37
Summary of Contents for Z Master 74923
Page 6: ...Slope Chart 6...
Page 8: ...107 2102 107 2112 109 7232 109 7304 109 7929 109 9477 8...
Page 65: ...Schematics Wire Diagram Rev A 65...
Page 66: ...Notes 66...
Page 67: ...Notes 67...
