User manual DLE61

High Speed Needle Adjustment

Turning the High-Speed Needle (No.5) clockwise will lean the

fuel/air mixture at high speeds. Turning the High-Speed Needle

(No.5) 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 1.5 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 DLE-61 at 44° before Top Dead

Center (TDC). The ignition timing can be advanced or retarded 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

1. The engine hesitates when accelerated rapidly.

2. The rpm increases at idling.

3. The engine stops when the throttle is moved from high to low.

Solution

The low-speed needle “L” is too lean. Open it about 1/8 of a turn

and try again.

Problem

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.