rb0804 Posted June 25, 2008 Report Share Posted June 25, 2008 just installed my brand new stator and hub tonight and the directions said to set the air gap between the pickup and the flywheel no less than .020". What happens if the air gap is larger. i changed out complete ignition systems because something is causing me to have weak spark. would an excessive air gap be the culprit? i measured the old when before i took it off and it was at .032". Quote Link to comment Share on other sites More sharing options...
shee4speed Posted June 25, 2008 Report Share Posted June 25, 2008 Whats your gap now? about the thickness of a matchbook cover is good.Do you still have TORS? Quote Link to comment Share on other sites More sharing options...
rb0804 Posted June 25, 2008 Author Report Share Posted June 25, 2008 nope no tors, no parking brake bs either. just had a weak spark problem, just curious if excessive air gap will give you weak or no spark that for future reference. i set the new pickup at .022" figured that was "safe" Quote Link to comment Share on other sites More sharing options...
shee4speed Posted June 25, 2008 Report Share Posted June 25, 2008 .022 sounds good. Not to sure bigger gap what would happen. Probably no spark. Quote Link to comment Share on other sites More sharing options...
magz Posted June 25, 2008 Report Share Posted June 25, 2008 (edited) gap needs to be set as close as possible without hitting either notchs on the fly wheel people. or .015 and no greater then .020 Edited June 25, 2008 by magz Quote Link to comment Share on other sites More sharing options...
spurdy Posted June 26, 2008 Report Share Posted June 26, 2008 .022 sounds good. Not to sure bigger gap what would happen. Probably no spark. 0.20 is what it should be set at. If the gap is too large, no spark will result. Ignition pick up is a solid state unit. It will either trigger or not trigger. Nothing in between. Either a go, or no go. Is it a weak spark on both plug wires? If so, could be the coil. If not, could be the wire, or boot, or connection between them. SP Quote Link to comment Share on other sites More sharing options...
rb0804 Posted June 26, 2008 Author Report Share Posted June 26, 2008 If so, could be the coil. to the best of my knowledge the coil doesnt go "weak" its one of those things that works or it doesnt. i am having a weak spark issue, not really interested in tracing it down. i purchased new stator, flywheel, cdi box, coil, and wiring harness. just curious of the purpose of the air gap and why "closer is better" Quote Link to comment Share on other sites More sharing options...
spurdy Posted June 27, 2008 Report Share Posted June 27, 2008 to the best of my knowledge the coil doesnt go "weak" its one of those things that works or it doesnt. i am having a weak spark issue, not really interested in tracing it down. i purchased new stator, flywheel, cdi box, coil, and wiring harness. just curious of the purpose of the air gap and why "closer is better" Simple.....0.20 is what it should be set at. If the gap is too large, no spark will result. Ignition pick up is a solid state unit. It will either trigger or not trigger. Nothing in between. Either a go, or no go. I don't think anyone ever said "closer is better". Quote Link to comment Share on other sites More sharing options...
2strokespirit Posted June 27, 2008 Report Share Posted June 27, 2008 just installed my brand new stator and hub tonight and the directions said to set the air gap between the pickup and the flywheel no less than .020". What happens if the air gap is larger. i changed out complete ignition systems because something is causing me to have weak spark. would an excessive air gap be the culprit? i measured the old when before i took it off and it was at .032". Yes it can, but I think you were save on .032", not ideal though. Quote Link to comment Share on other sites More sharing options...
mopar1rules Posted June 28, 2008 Report Share Posted June 28, 2008 (edited) coils can go weak. most people think they either work or don't work. well my buddies shee had a weak coil. shee would kinda stutter and not pull proper rpms at top end. put new coil on it and it worked great. oh yeah, my gap is set at .015" w/no problems. Edited June 28, 2008 by mopar1rules Quote Link to comment Share on other sites More sharing options...
SAVAGE420 Posted June 28, 2008 Report Share Posted June 28, 2008 (edited) coils can go weak. most people think they either work or don't work. well my buddies shee had a weak coil. shee would kinda stutter and not pull proper rpms at top end. put new coil on it and it worked great. oh yeah, my gap is set at .015" w/no problems. I second this. Ive had two coils get weaker on me and it would fire every time...BUT once you get on her the rpm's would not build like normal in the upper rpm range and i thought it was a main jet issue until i tracked it down to the coil resistance was getting very weak Edited June 28, 2008 by savage420 Quote Link to comment Share on other sites More sharing options...
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