36 MAINTENANCE
A. Spark Plug Gap
B. Eiect_
Cooling Sys_m Cleaning
Beforeeach use. checkthat the air-intake(rotary)
screen(A) isfree fromgrass and debrisand clean
necessary.Ever,/100 hoursof operation,checka_
clean the coolingfinsand _side of engine shrouds
to remove grass, chaff or dirt cloggingthe cooling
and causingovereating. When cleaning,
removetheair-intakescreen(A), andthe air cleaner
cap ((3)the fan housing(B).
CAUTION
Do not run engine before all cooling sys_
parts are reinstalled to keep cooling and car-
burn as intanded,
Bolts Size O Torque]
Bolts Size Leng_ "l]ghtefl_-to-:que
5.9 N.m (0.6 kgf.m, 4.3
D M6 12 mm
ft.lb)
5.g N.m (0.6 kgf'm, 4.3
E M6 20 mm ft.lb)
,5.9N.m (0.6 kgf.m, 4.3
.F M6 12 mm
.lb)
.F: Screws
FHS41VtOII4 O
MAINT_NCE 37
49
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