2 Stroke Ignition Timing


Using a vernier caliper, extend the depth part of the vernier into the spark plug hole and find top dead center (TDC), zero the caliper. Now, in addition to that setting, extend the caliper probe out to the amount of ignition timing preferred (09 thru 11 KTM 65 = 1.1mm Before Top Dead Center (BTDC). Now lock caliper again. With the caliper sitting flush on top of the spark plug hole, rotate the the flywheel counterclockwise (The direction of normal rotation) until the piston just lightly touches the caliper probe. Now rotate stator plate until the mark lines up