Use and Care Manual

28 MAINTENANCE
Fuel Filter and Fuel Pump Service
WARNING
Improper use of solvents can result in fire or
an explosion.
Do not use gasoline or low flash-point sol-
vents to clean the fuel filter and/or the fuel
pump.
Clean only in a well ventilated area away from
sources of sparks or flame, including any ap-
pliances with a pilot lamp.
•
The fuel filter can not be disassembled. If the fuel
filter gets clogged, replace it with a new one.
The fuel pump can not be disassembled. If the fuel
pump fails, r eplace it with a new one.
28 MAINTENANCE
Fuel Filter and Fuel Pump Service
WARNING
Improper use of solvents can result in fire or
an explosion.
Do not use gasoline or low flash-point sol-
vents to clean the fuel filter and/or the fuel
pump.
Clean only in a well ventilated area away from
sources of sparks or flame, including any ap-
pliances with a pilot lamp.
•
The fuel filter can not be disassembled. If the fuel
filter gets clogged, replace it with a new one.
The fuel pump can not be disassembled. If the fuel
pump fails, r eplace it with a new one.
MAINTENANCE 29
Cooling System Cleaning
Before each use, chec
k that the air inlet (rotary)
screen (inside A) is free from grass and debris and
clean if necessary. When checking or cleaning the
air inlet screen, rem
ove air inlet guard (A). Every 100
hours of operation, check and clean the cooling fins
and inside of engine shrouds to remove grass, chaff
or dirt clogging th
e cooling system and causing over-
heating. When cleaning, remove the air cleaner (in-
side E), loosen the bolts (C), (D), and then, remove
the fan housing (B)
.
CAUTION
Do not run engine before all cooling system
parts are reinstalled to keep cooling and car-
buretion as inte
nded.
CAUTION
Bend the engine shroud (regulator side) [A]
only within the shown range [B] (70°).
[Bolts Size, Tightening Torque]
Bolts
Size
Length Tightening Torque
C
M6 16 mm
8.8 N ·m (0.9 kgf·m, 78 in ·lb)
D M6 22 mm
8.8 N ·m (0.9 kgf·m, 78 in ·lb)
[B] = 70°
31
MAINTENANCE