christoph.tamz Posted August 7, 2018 Report Share Posted August 7, 2018 So I was ripping the shee and it died. Got it home with a hell of alot of backfiring. Took the left plug out and was crushed. Right was fine. What I've done so far was. Changed plugsCleaned the stator and pick upCompression is at 160ishCase holds 6psi for 6minsChanged coils, confirmed spark I did notice the pick ups on the fly wheel were flattened In The start of them. She fired but won't hold an idle and heats up quick. Any ideas? Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Also. Hard as hell to start. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
booxzzy Posted August 7, 2018 Report Share Posted August 7, 2018 What about carburetors, getting fuel, jets clean?Could be lack of fuel Sent from my ONEPLUS A3000 using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Carbs are getting fuel. I can take them apart to clean them. But didn't do that yetSent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
Ayesully810 Posted August 7, 2018 Report Share Posted August 7, 2018 (edited) What series plugs what octane gas good water pump bearing and impellar? you still running the drag ported 421 with cpis? Sounds like its building heat are the plugs backing out at all? I had some slight detonation at the dunes while back to back drag racing long pulls. plugs backed out with one plug bridge starting to collapse, i upped the main from a 155 to a 160 and it never happened again. This was also in 90+ degree heat in the sand with a 8 series plug Edited August 7, 2018 by Ayesully810 Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Br8es. 32:1 yamalube . and yes. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Br8es. 32:1 yamalube . and yes. Sent from my SM-N920V using TapatalkAlso 93 octane Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Also 93 octane Sent from my SM-N920V using TapatalkI believe the pilot is 27.5Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Plugs are seating fine and not backing out. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 I'm running 162 mains. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
Ayesully810 Posted August 7, 2018 Report Share Posted August 7, 2018 (edited) you cant be running a 27.5 main. thats stock carb jet sizes. check your pilot size and go up 2-3 sizes with air screw 1 turn out. 48-52 pilot should be about where its at. you have air stykers? or pwks Edited August 7, 2018 by Ayesully810 Quote Link to comment Share on other sites More sharing options...
Ayesully810 Posted August 7, 2018 Report Share Posted August 7, 2018 8 minutes ago, Ayesully810 said: you cant be running a 27.5 main. thats stock carb jet sizes. check your pilot size and go up 2-3 sizes with air screw 1 turn out. 48-52 pilot should be about where its at. you have air stykers? or pwks hopefully you dont have a stock carb jet screwed into your carbs lol Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 I know I don't. I just don't remember what's in there. I known I did it right tho and was running perfect. Nothing changed but a major backfire. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted August 7, 2018 Report Share Posted August 7, 2018 Detonation if it's emu hint the end of the plug closed. Probably time to up the octane. Especially if it's really hot out. Any timing? And check your reeds if you've verified the Pistons/cylinders are in ok shape. More often then not, worn out or broken reeds are the culprit for backfiring if the rest of the set up is proper. Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted August 7, 2018 Author Report Share Posted August 7, 2018 Ooh. Ok. I forgot to mention reeds are close to new and flow free. No spacing in the cage. Boots are near perfect. Gaskets are new. It's been close to 100 here daily. I do run an octane booster but not on this tank of gas. Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
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