Usually if the engine dies when you pull the igniter off it does mean that the plug is bad. The engine may have come with a bad glo plug. I seen this happen before. But on the other hand the engine will die if the engine is very out of tune and then you pull the igniter off as well.

Usually if an engine is way out of tune i will tune it with the glow plug igniter on it. Then I will adjust the high end needle first to make sure that it is not to lean. Crank it up and rev the engine up some. Richen your high end until you can run the engine wide open. Let the engine sputter. I usually richen it a few turns just so I can run the engine wide open. Then from there slowly start to tighten your high end needle. Continue leaning out until it hits that high note and is maxed out. You will know if you went to lean because the engine will die out. Find the highest rpm with it right before it dies then back it off rich about 3 or 4 clicks.

Now to adjust the low end after the high end is set. Crank your engine up and start to run the throttle up and listen to how it sounded. If it sputtered and spit a bunch of fuel out, the low end is to rich. If it makes this hollow OOOOOOOOW sound then it is to lean. Trying to give an idea with my sound effects.

Then from there keep adjusting loosen or richen depending on how it responds to the settings you do. If it is to rich each time you lean in the low end the engine will rev up faster each time. Just add throttle and back off and see how it sounds. Keep adjusting until the engine revs instantly from idle to wide open. On the other hand if it is to lean keep richening it until it reacts correct to the fast throttle responses. From idle to wide open throttle.

Then from there remove your igniter and see how it reacts. It should stay running. Your rpms may drop a hair after you remove the igniter but it should not die out.


If any of you guys see that i forgot something or said something incorrect let me know. It is much easier to do this first hand than to type it out on steps.