Fig. 47 -
Radiator
Hose Drain
Cock
Fig. 48 -
Radiator
Fill
Cap
The rust and corrosion inhibitors in antifreeze lose their
effectiveness after approximately two years. There-
fore, the cooling system should be flushed and refilled
with a fresh antifreeze solution every two years.
The use of 1 00% antifreeze is not recommended since
a certain amount of water is required to make the
antifreeze affective. Always use a permanent (ethyl-
ene glycol) type antifreeze. Never use a methanol type
antifreeze.
The radiator drain cock is located on the lower radiator
hose on the left hand side of the engine. The engine
drain cock is located on the left side of the engine block.
Open both drains at the same time to drain the cooling
system. Another alternative is to drain one at a time
which will take a little longer for the coolant to drain.
Removing the radiator cap will also to help speed up
the draining process.
FAN
BELT
The fan belt tension should be checked after the first
60
hours of operation, and every 120 hours thereafter. Not
enough tension on the V-belt can cause overheating
32
and low alternator output. Too much tension can place
undue strain on the alternator bearings, water pump
bearings, and the fan belt, resulting in premature
failure.
Fig. 49 - Fan Belt
Adjusting
Bracket
To check the tension, depress the belt midway be-
tween the alternator and the crankshaft pulley with a
force of 11-151bs. (5-7 kg). The belt deflection should
be between3/8 -19/32" (10-15mm). To adjust the belt,
loosen the alternator mounting bolts and rotate the
alternator to tighten the belt. (See Fig. 47)
CLUTCH ADJUSTMENT
The main clutch should have some free play. The
recommended amount of free play should
be
1 3/8" to
1 9/16"
(35-
40mm) as shown in Fig .48, item "N". If the
free play drops, due to wear, below 1" (25mm) adjust
, the clutch as follows:
1.
Detach the fork (3) from the clutch release lever by
removing the pin (4).
2.
Loosen the locknut (2) and extend the length of the
clutch rod
(1)
by rotating the fork
as
required.
3. Re-connect the fork and check the free play.
4. When the free play is with in the recommended
amount, tighten the locknut.
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