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EvilBanshee

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Posts posted by EvilBanshee

  3. Plug Chop Pics

    in Jetting & Exhaust Forum

    Posted

    The way to really tell for MAXIMUM power, so to run on a dyno, and put a exhaust bung in that reads Air/fuel ratio. Keep leaning it out until the power starts to drop off. Then you know your perfect. USually peak power is around 13:1-14.5:1 Depending on the engine. Every engine is alittle bit different. I will agree "Peak" power on a spark plug soot ring will be less then a dimes thickness. But if you go with a dime thickness its safe and its close to perfect.

  4. Plug Chop Pics

    in Jetting & Exhaust Forum

    Posted

    if your only doing short wide open bursts like motox track you can get away with lean jetting on the ragged edge. running pinned for 600' you probly want the brown ring alittle higher up the porcelin. 1/3 to 1/2 way up. im no carb expert but i run 600' and it dont take long to ruin a engine if you get caught with your pants down

     

    The ideal Soot ring thickness for WOT jetting is the thickness of a dime. "Light light bown as thick as a dime" is darn close to perfect.

  10. Plugs

    in Jetting & Exhaust Forum

    Posted · Edited by EvilBanshee

    FIrst of all what kind of fuel are you running? U deffinitly need to check fora vacume leak as the plugs are very different from left to right. But keep in mind if you are running pump fuel with 10% ethanol they will burn clean like that and look new if its burning a tick lean. if you are looking for 100% performance. you want to have the plugs looking more cleaner then black

  15. Avgas

    in Banshee Repairs and Mods

    Posted

    i run it in everything. Chainsaw's, my sv650, my CFR450R, my F7, The race car. Its too bad they are trying to get in banned because it has lead in it. Because airplanes make so much polution in the world.... COUGH COUGH.. Maybe .0000075% ofthe worlds air pollution. Stupid governments and tree huggers...

  18. Avgas

    in Banshee Repairs and Mods

    Posted

    I tried some 93 pump gas yesterday & almost blew this engine. It started detonating, spark plugs backed out & right cylinder died & was smoking like a freight train. I turned it off & rechecked compression & it was 140-145psi. with the tip being 1/4" shorter than spark plug tip. So it has to have more compression than what the tester is reading. I'm also running +4 timing. I did not have any problems at all before I use 93 pump. So today im going to get 5 gallons of 100LL & see if it gets back to running good.

     

     

    YOur compression ratio will be around 14:1. 93 octane is for engine with compression around 11-12:1

  19. Avgas

    in Banshee Repairs and Mods

    Posted

    Thanks I heard the samething before from a member on here. I just needed a second opinion....I will run a second set of plugs with richer mains just to see if the color changes. Im hoping to see the grey get darker, if so I think I can finally read these plugs using this fuel from that. :headbang:

     

    I have less than 155psi. with +4 timing, how much more compression & timing could I add to 100LL & be safe?....it's not a drag bike but more of a duner 421 cub. I should asking how much compression & timing was you running using 100LL for years?

     

     

    I have the same set up. 22cc domes, +5 timing. I was wondering the same. I thought maybe 20cc domes max? But that may be asking for trouble. I wouldnt do less then 21cc domes on 100LL

  20. Avgas

    in Banshee Repairs and Mods

    Posted

    So what color are you guys plugs when you're are checking them running 100LL? I checked mines & they are grey.

     

    That is perfect!! Dont let anyone fool you saying its lean. They dont know shit. Ledded fuel runs Light grey even almost a white when it perfectly tuned. Trust me. Your fine. Been running 100LL for YEARS

  22. How do my plugs look?

    in Banshee Repairs and Mods

    Posted

    you want milk choclate brown.....not light grey. yes i know it makes the most power......however 2strokes tend to make their most power and run stronger than hell AFTER it has been leaned beyond a safe amount

     

    IF you run proper fuel,You wont have an issue running it on the lean side. Yes for sure you can go too far. BUt with my set up with 100LL i can run a lighter grey and still be on the safe side hands down.

  23. How do my plugs look?

    in Banshee Repairs and Mods

    Posted

    Looks a little rich, but not as bad as he says, looks like you could come down a little bit. You need to do a wot plug chop to get a accurate reading.

     

     

    Alittle rich?.... You should see my plugs. Liiiiight liight grey. Sometimes almost a dark white. MAkes the most power where i have it set at. Ill post a picture some day.

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