Ignition Timing Adjustment - RCGF RCGF35CCRE Operator's Manual

needle to the fully stop/closed position and then turn back 1.5 turn.)
High Speed Needle Adjustment
Turning the High-speed Needle clockwise will lean the fuel/ air mixture at high speeds.
Turning the low-speed Needle counter-clockwise will richen the fuel/air mixture at high
speeds. (The default or factory setting of the High-speed Needle is as follows: turn the
needle to the fully stop/closed position and then open the needle 2 turns). It is
recommended that the High-speed needle be adjusted by the use of a tachometer to
obtain maximum speed. Smooth acceleration and deceleration is an indicator of proper
engine performance.

Ignition Timing Adjustment

The ignition timing is preset on the RCGF35cc at 28-30° before Top Dead Center (TDC).
The ignition timing can be advanced or retarded by loosening the ignition sensor Phillips
head screws and sliding the sensor to the full extent clockwise (32° advancing the
ignition) or counter clockwise (26° retarding the ignition). Be sure to retighten the Phillips
head screws after adjusting the ignition timing. It is best to attach the sensor with the
screws centered in the slot as a starting point.
Advancing the timing causes combustion to occur earlier resulting in
higher performance of the engine. However, advancing the timing also
causes higher engine temperatures and can cause premature wear of
internal engine components.
Carburetor Adjustment Troubleshooting
Problem:
If The engine hesitates when accelerated rapidly.or The rpm increases at idling. or The
engine stops when the throttle is moved from high to low.
Solution:
The low-speed needle "L " is too lean. Open it up about 1/8 of a
turn and try again.
Problem:
If The idle is not steady.
Solution:
The low-speed needle "L " valve is too rich. Close it 1/8 of a turn
and try again.
Problem:
If Engine stops at full throttle.
Or Engine hesitates when accelerated rapidly.
Or The engine will not come up to full rpm at full throttle.