15
ADJUSTING CARBURETTOR
(As Required)
WARNING DANGER
WHEN CARBURETTOR ADJUSTMENT IS
COMPLETED, BLADES SHOULD NOT MOVE AT
IDLE, OTHERWISE SERIOUS PERSONAL INJURY
MAY RESULT.
Every unit is test run at the factory and the carburettor is
fine tuned for maximum performance.
Before adjusting carburettor, clean or replace air filter,
start engine and run several minutes to bring it to operating
temperature.
CAUTION
When starting, idle speed adjuster should be
adjusted not to move the blades.
When there is some trouble with the carburettor,
contact your dealer.
1. Idle Speed Adjustment.
Stop engine. Turn low speed needle anticlockwise
until it stops.
Start engine and turn idle speed adjustment screw
clockwise until the blades begin to move, then turn
the screw anticlockwise until the blades stop
moving. Turn screw anticlockwise an additional 1/2
turn.
2. Accelerate to full throttle for 2 to 3 seconds to clear
excess fuel from engine then return to idle.
Accelerate to full throttle to check for smooth
transition from idle to full throttle.
T : Idle speed adjuster
L : Low speed mixture adjuster
Recoil starter housing
Fins
Silencer
CLEANING SILENCER AND EXHAUST
PORT (Check Periodically)
1. Carefully remove housing halves.
2. Remove and disassemble silencer.
3. Clean deposits from cylinder exhaust port and
silencer.
NOTE
Clogged fins will cause poor engine cooling.
CLEANING CYLINDER FINS (Check
Periodically)
1. Carefully remove housing and clean dirt and dust
from fins.
2. Reinstall housing.
NOTE
Be careful not to scratch the cylinder or piston when
cleaning the cylinder exhaust port.
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