Ignition timing adjustment, Carburetor adjustment troubleshooting – DLE 120 User Manual

Page 15

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Ignition Timing Adjustment

The ignition timing is preset on the DLE-120 at 44° before Top Dead

Center (TDC). The ignition timing can be advanced or retarded slightly
by loosening the (2) ignition sensor phillips head screws and sliding
the sensor to the full extent clockwise (45° advancing the ignition) or

counter clockwise (43° retarding the ignition). Be sure to retighten
the phillips head screws after adjusting the ignition timing.

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.

Solution:

The high-speed needle valve “H” is too lean. Open it up 1/8 of

a turn and try again.

Problem:
If
Your engine does not reach full rpm.
or Carbon build-ups appear consistently on your spark plug.

Solution:

The high-speed needle valve “H” is too rich. Close it up 1/8 turn

and try again.

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