AJS & Matchless Owners Club

Hi again my ajs has been stored in a garage for the past 20 years it's in great condition I am not very knowledgeable in the classic bike scene as I am a new owner I have changed plugs battery but am still getting no spark from plugs any help would be great thanks again

Hi David, basic first question do you have a magneto or distributor?

If a distributor have you checked you are getting power to the points?

If you have a magneto the very first step is to clean the points with very fine sandpaper or a points file. When standing for years the surface of the points corrode (oxadise i think) and will not allow a spark. Reset the points gap for 12 thou and then see if you get a spark at the plug.

Check fuel to carb if you have spark at plugs a rough guide pour a spot of fuel into each cylinder replace plugs it should fire up and run for few seconds.

Thank you for your replies I will check magneto and see where I go from there thanks again regards david

If it's a coil system. Check all the connections,the points in the dissy. Especially the. Thin wire to the condenser for a break.condition. Of high. Tension leads and coil

With the mag unclip one of high tension pick ups and clean the track refit and see if you have a spark if the engine runs ok from cold but then is pig to start when hot suspect the mag might. Need a rebuild.