Maintenance
GB–17
Spark Plug
A spark plug that is dirty, pitted, carbon-covered or
has worn electrodes may cause hard starting and poor
operation.
Clean or replace spark plug once a season or every 25
hours, whichever occurs first. Use a Champion
RJ12C spark plug or equivalent.
1.
Pull wire off spark plug (Fig. 21). Remove spark
plug and clean with a wire brush, removing
carbon build–up. DO NOT SAND BLAST.
Check condition of plug for cracks and damaged
or worn electrodes. Replace if necessary.
2.
Set spark plug gap at .035 inch (.85 mm)
(Fig. 20).
986
.035 in.
(.85 mm)
Figure 20
3.
Install spark plug by hand, then torque to
180 in.–lbs. (15 ft.–lbs.) (20 N
⋅
m) (Fig. 21).
1042
1
Figure 21
1.
Spark plug wire
4.
Reconnect spark plug wire when maintenance is
completed.
Clean Mower Housing
A clean mower housing provides the best cutting
performance. Check for grass build-up and clean after
each use.
1.
Disconnect spark plug wire (Fig. 21).
2.
Run engine dry or remove gas with hand pump.
POTENTIAL HAZARD
•
Gasoline is extremely flammable, highly
explosive and under certain conditions can
cause personal injury or property damage.
WHAT CAN HAPPEN
•
Tipping mower may cause fuel leakage
from carburetor or fuel tank.
HOW TO AVOID THE HAZARD
•
Avoid fuel spills by running engine dry or
remove gas with hand pump, never siphon.
3.
Tip mower onto right side (Fig. 22).
1128
Figure 22
4.
Scrape built-up grass clippings and dirt from
mower housing with a hardwood scraper.
5.
Tip mower upright.
6.
Reconnect spark plug wire when maintenance is
completed.
7.
Fill fuel tank with clean, fresh gasoline/oil mix.
