jonsi Posted June 24, 2008 Report Posted June 24, 2008 i just rebuilt my banshee and used .80 over cylinders (66 or 68 dont really remember) + 4 stroker crank with 5 long rods full fmf gold series pipes (older version) snorkel removed stock air box and tors removed... afetr i got it all back together it was running ok but back firing, found out the tors bypass wasnt on, got it running good... i ended up spinning the sprocket off the hub and bent the hub pretty good (so it was running real good), now a week later i put it all back together and it ran great for a minute or two untill i ran outta gas. filled it up and it seems like it misfiring (popping and back firing a lil bit) and has no power!!!!! i took the carbs apart and cleaned em thinking it might have sucked stuff from the tank and still nothing. im thinking i may have water in the gas but maybe the jetting is off... the terrain i ride is between 500 1500 feet (live in the valleys of new york) around 70 80 degrees, im running 280 mains 30 pilots sound about good..... also what mixture should i use i started with 50:1 someone told me to go with 100:1 what do you think..... thanks Quote
jamebo Posted June 24, 2008 Report Posted June 24, 2008 What kind of oil are you using? I don't think I would go 100:1 with any kind. Sounds like a recipe for a burned up motor to me. Quote
Washburn Posted June 24, 2008 Report Posted June 24, 2008 did you check your reeds to see if they are opening and for cracks ect.. you should look for air leaks too and make damn sure your filter is spotless. While your at it get a TORS removing kit and get and e brake block off as well About the 50:1 thats not enough oil getting into the gas unless your useing an oil that claims 8:1 or 100:1 and thats pure crazyness. Ide never even think about 50:1 unless that was all I had for the weekend 100:1 is insane I wouldnt do it it might make you a tad quicker but it will damage your already .80 over cyls. Just buy some yamalube 2R or Castor 927 (My Brand) and mix it at 32:1 Quote
jonsi Posted June 25, 2008 Author Report Posted June 25, 2008 i drained all my fuel went with 32:1 and checked the reeds and cages their fine and still runs like garbage... any other suggestions or should i just take it to someone?????? Quote
tgbanshee Posted June 26, 2008 Report Posted June 26, 2008 Although unlikely, you could have developed an air leak from the hot/cold cycles on the new motor. Did you do a leak down test and a compression test after you got everything back together and after you broke the motor in? Quote
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