Ignition timing is an often-misunderstood concept that has a big effect on performance. An air/fuel mixture burn rate doesn't increase in direct proportion to engine rpm. Therefore, the faster the ...

Older vehicles with distributor-based ignition systems need their timing checked on a regular basis, otherwise you can have a host of problems. Starting becomes difficult, idling will be rough, ...

From vintage points systems to modern programmable modules, Harley ignition timing is the heartbeat of your ride’s performance. Knowing how to set, adjust, and fine-tune it can transform throttle ...