Manual

34 MAINTENANCE
Cooling System Cleaning
Before each 9pe[at!gn, check that the air inlet (re-
taw) screen (A) is free from grass and debris. Clean,
the screen if necessary: Eve_ 100 hours of oper-
ation, check and clean the cooling fins and the in-
side of engine shrouds to remove grass, chaff or di_
clogging the cooling system and causing overheat-
ing. When c{eaning, remove the air in_etscreen (A),
the air c_eaner cap (C) and the fan housing (B).
Do not run engine before all cooling system
parts are reinstalled to keep cooling and car-
buretion as intended.
[Bolts Size, Tightening Torque]
Bolts Size Length Tightening torque
5.9 Nm (0.6 kgf.m, 4.3
D Mro 12 mm
ff, lb)
5.9 Nm (0.6 kgf.m, 4.3
E M6 20 mm
ff-lb)
5.9 N.m (0.6 kgfm, 4.3
,F M6 12 mm ff.tb)
,F: Screws
STORAGE 35
Fuel System Draining
Engine to be stored over 30 days should be com-
pletely drained of fuel to prevent gum deposits form-
ing on essentiai carburetor parts, the fuel filter and
the tank.
• Put a pan under the carburetor and ioosen the
drain screw of the carburetor to drain the gasoline
completely.
• Tighten the drain screw.
Gasoline is extremely flammable and can be
explosive under certain conditions,
Drain fuel before storing the equipmen_ for
extended periods.
Drain gasoline in,a well ventilated area away
from, any source of flame or sparks, includ-
ing any appliances with, a pilot light. Store
gasoline in an approved container in safe lo-
cation,
• C_ean every part of the engine.
• Be sure that the engine switch or switch key is
positioned at "OFF" position.
• Ciose the fuel valve and remove the sediment
bowl,
• Put a pan under the fuel valve to receive the
drained gasoline and open the fue_ valve to drain
the gasoline from fuel tank completely.
• Install the sediment bowl.
49
A, Fuel Drain Screw
B, Pan