Scotts 907254 - LM21SW Operating And Parts Manual page 17

3. Scrape and wash spark plug with a commercial
solvent. DO NOT blast clean.
4. Replace spark plug.
NOTE: Sparking can occur if wire terminal does not fit
firmly on spark plug. Replace terminal if damaged.
4
2
3
Briggs & Stratton Intek OHV
1. Oil Fill Cap & Dipstick
2. Air Cleaner
Figure 13
CHECK ENGINE COOLING
Engine is air cooled. Air must circulate freely around
engine from Air Intake to cooling fins on cylinder head
and block to prevent overheating.
WARNING: HOT SURFACES can cause
death or serious injury. DO NOT TOUCH parts
which are hot from operation. ALWAYS allow
parts to cool.
Every 100 hours of operation or yearly (more often if
conditions require) remove cooling shrouds and clean
cooling fins. Clean external surfaces of engine of dust,
dirt and oil deposits which can contribute to improper
cooling.
IMPORTANT: DO NOT operate engine with blower
housing removed or engine overheating damage will
result.
CHECK MUFFLER
Check muffler for cracks, wear, or other damage. Worn
out mufflers should be replaced immediately.
Continued use could result in fire or explosion.
1
OM0680
3. Spark Plug & Wire
4. Fuel Cap & Tank
17