1. Adjust carburetor
Please read the instructions carefully before staring engine.
Before staring
Carburetor is already prepared in standard
and not required to adsjust
Readjust according to user’s requirement
Main needle calibrating screw
1-1.5mm
Opening (rich)
Opening (rich)
Closing (lean)
Closing (lean)
Decreasing RPM
unscrewing
Increasing RPM
screwing
Idling adjusting screw
Micro adjusting screw
2. Adjusting idling
Adjusting idling
- 1-1.5mm is set to standard at factory, and is made
to a little bit increased RPM for easy starting.
- Adjust to fuel and piston. For high neutral, turn
left/unscrew calibrating neutral screw. For slow
neutral, turn right/screw-in the screw.
Decreasing RPM
unscrewing
Increasing RPM
screwing
Calibrating neutral screw
Closing (lean)
Opening (rich)
Main needle Calibrating screw
- Maximum RPM is adjusted with main needle
- At the first drive, run as set. Turning clockwise will
be increasing RPM and turning counter-clockwise
will decreasing RPM. Turning clockwise extremely
will over-heat finally to breakage of inside of engine.
3. Main needle
Adjust the main adjusting screw
03