John, ... do you watch and UNDERSTAND the video's ..?? I sent 2 ( TWO ) video's of how to do the valves adjust in POST # 4, .. Bert sent another in POST # 14, ... I sent it AGAIN, in POST # 23 easy way to tell if you're on the COMPRESSION stroke, is remove the engine shroud and the spark-plug, put your fat finger or thumb over the plug hole and rotate the flywheel with your other hand, when you feel your finger being pushed off the plug hole the piston is coming up for either EXHAUST or COMPRESSION, now look at the outside edge of the flywheel, if the magnet ( built into the flywheel ) is at, or really close to the coil, it's the COMPRESSION stroke, if on the EXHAUST stroke, the magnet will be APPROX 180 degrees from the coil. ... comprende, gabeesh, understand ..?? .. :thumbsup: