Using Timing Light On Triumph Motorcycle

Once the engine is running you can use a timing light to check the position of the electronic ignition trigger as it passes the pickup at the engine speed the ignition manufacturer specifies.

Using timing light on triumph motorcycle. Loosen the clamp located at the base of a distributor with a ½-inch 13-mm wrench just enough so that you can turn the distributor on its base. Works fine with my car. I have a timing light i used to use with my older bikes and cars that had ignition points.

Remove the points cover. Confirm that the F mark aligns with the engine cases timing mark at idle. Timing is not adjustable so there is nothing you can do with it.

Set the valve at Y mm say 4-mm of lift on the opening side and note the number on the degree wheel then set the same valve at Y mm of lift on the closing side and note the number. The timing marks should not wander with the RPM of the drill. With the light in place the ignition should be turned on.

Experience in Harley. Zero the disc to tdc on the right cylinder compression stroke. I used a long bolt a nut and a piece of aluminium.

Also be aware because of potential errors in marking alternator rotors and the variable position of the primary. The mechanic should examine the flywheel at this point to locate the TDC timing marks. This should get you close enough to get the engine running.

Pulled the motorcycle plugs - Answered by a verified Motorcycle Mechanic. You can then use a timing light to check the ignition timing by the moving timing marks and the fixed timing mark in the primary cover. Dwell refers to the length of time the ignition points are closed and.