Owner`s manual

90
② Blocked in muzzle channel
③Leakage on connecting part of
carburetor and starting part
④ Starting pin not work properly
Clean
Tighten, Adjust or
change
Adjust
Idle and low speed
not stable
① Reducer valve blocked or loose
② Valve channel Blocked
③ Air inlet channel blocked
④ Air inlet bypass Blocked
⑤ Starting pin not closed completely
⑥ Idle screw not suitable
⑦ Height of floater not correct
Clean or tighten
Clean
Clean
Clean
Adjust
Adjust
Adjust
Not stable in high
and middle speed
① Muzzle blocked
② Main air channel blocked
③ Needle valve blocked
④ Throttle not work well
⑤ Fuel filter blocked
⑥ Height of floater not right
⑦ Starting pin not closed
Clean
Clean
Clean
Adjust
Clean or change
Adjust
Adjust
Carburetor
works not
properly
Spill over or fuel
level fluctuated
① Needle valve worn out or damaged
② Spring on valve broken
③ Floater not work well
④ Dirt or scale in valve
Change
Change
Adjust or change
Clean