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MALLORY IGNITION

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ADJUSTMENT PROCEDURE FOR YH MECHANICAL ADVANCE ASSEMBLY

NOTE: Check local laws before changing advance limit or advance rate.

LEFT HAND

ROTATION

RIGHT HAND

ROTATION

Adjustment

Screw

Adjustment Plate (on

bottom)

Adjustment Plate (on

bottom)

Adjustment

Screw

Advance Tab

Spring Perch

The advance rate indicates how fast the advance

comes in. To change the advance rate, you must

change springs. An advance curve kit (Part No.

29014) is available. The kit includes a selection of

springs, degree keys, and detailed instructions.

The advance limit is the total amount of advance

provided by the mechanical advance.To adjust the

advance limit, loosen the adjustment screws and

rotate the adjustment plate. Adjustment range is

0° to 28°.