| Diagram | Fig. 8 — TIMING COVER AND CONTACT BREAKER · ref 8 |
| Subsystem | engine bottom |
| Listed in parts books | 1967 |
AUTO ADVANCE ASMB
An automatic ignition advance assembly for adjusting spark timing with engine speed.
This is an automatic advance assembly, the mechanical unit that lived inside the magneto or distributor and adjusted ignition timing as engine speed rose. It carries centrifugally-operated weights and springs that move the points cam (or the contact breaker plate, depending on the system) to advance the spark as revs climb, then let it retard again at idle.
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Our records on this one are thin. We don't have figure or fitment detail beyond the part number and the basic description, so we can't tell you which specific bike or ignition setup it was cataloged for.
Give us a call with your bike's details and we'll work with you to confirm this is the right auto advance unit before you order.
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