Carburetor adjustment
The idle speed may be performed by customer
as a part of the routine maintenance.
ldle speed adjustment
1.Start the engine and warm it up for a few min-
utes at approximately 1,000 to 2,000 r/min, increase
the speed of engine to 4000 to 5000r/min .
2.Set the specified idle speed by adjusting the
throttle adjusting screw,Turn the screw into increase
engine speed,and out to decrease engine speed.
Specified idle speed:1450-1550 r/min
Valve clearance adjustment
Incorrect valve clearance will result in improper
fuel/air supply or engine noise.To prevent this ,the
valve clearance must be adjusted regularly,but the
adj ustment should be done by a professional
mainterance technician.
Throttle lever adjustment
NOTE
Adjust the engine idle speed before adjusting
the throttle lever.
1.lossen the locknut.
2.Rotate the adjusting bolt until the throttle lever
free play is 3-5mm(0.12-0.20in)
3.Tighten the locknut,
-33-
1.Throttle adjusting screw
①
②
1.Adjusting bolt
2.Locknut
a.3-5mm(0.12-
0.20in)
↓
↑
a
