Use and Care Manual

MAINTENANCE BRD-2620

32 X7502343000

1. Remove spark plug and check

for fouling, worn and rounded

center electrode.

2. Clean the plug or replace with a

new one. DO NOT sand blast to

clean. Remaining sand will

damage engine.

3. Adjust spark plug gap by bend-

ing outer electrode.

4. Tighten spark plug to 102-153

kgf•cm (89-133 in•lbf).

Cooling System

Level 2.

To maintain proper engine oper-

ating temperatures, cooling air

must pass freely through the cyl-

inder fin area. This flow of air car-

ries combustion heat away from

the engine.

Overheating and engine seizure can

occur when:

• Air intakes are blocked, prevent-

ing cooling air from reaching the

cylinder.

• Dust and grass build up on the outside of the cylinder. This build up insu-

lates the engine and prevents the heat from leaving.

Removal of cooling passage blockages or cleaning of cooling fins is consid-

ered “Normal Maintenance.” Any failure attributed to lack of maintenance is

not warranted.

0.60 - 0.70 mm

(0.024 - 0.026 in.)