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  1. W

    300/440/550 550 sbn 44 questions

    Thanks a lot man! Do you happen to know of a good place to find the sbn? Can't seem to find them for under $175 but I've read where people get them in the low 100's
  2. W

    300/440/550 550 sbn 44 questions

    I would really appreciate it if anyone could answer some of these questions for me.. I'm looking to by a new sbn 44 for my 88 js550.. 1. Where is the best place to buy one from? 2. Will this carb bolt on to my stock manifold or will in need to purchase an aftermarket manifold as well? 3...
  3. W

    300/440/550 Bogging under full throttle

    Did you ever get the sbn 44?
  4. W

    300/440/550 Help!? JS 550 sputtering and backfiring under full throttle

    Ok, I bypassed the on/res switch and went directly from the tank to the carb and I also took out the rev limiter and plugged the hole in the side of the carb. Ski still runs terrible.. seems like its impossible to get the carb tuned. I think the carb is done for. Anything im missing or should i...
  5. W

    Other Help!! Short on time.. Is this 650 worth $1000???

    Hey guys im sorry for such a short notice but this ski just fell into my lap a few hours ago. I havent seen it personally yet but the guy "says" it runs awesome. From what I got out of the quick conversation, he said the ski is 1990 sx650 with a new paint job and turf, Aftermarket handlebar and...
  6. W

    650/X-2 Help!! Short on time.. Is this 650 worth $1000???

    Hey guys im sorry for such a short notice but this ski just fell into my lap a few hours ago. I havent seen it personally yet but the guy "says" it runs awesome. From what I got out of the quick conversation, he said the ski is 1990 sx650 with a new paint job and turf, Aftermarket handlebar and...
  7. W

    300/440/550 Help!? JS 550 sputtering and backfiring under full throttle

    Thank you both very much! I will do them both and return in a few days with results
  8. W

    300/440/550 Help!? JS 550 sputtering and backfiring under full throttle

    yes it has the factory rev limiter
  9. W

    300/440/550 Help!? JS 550 sputtering and backfiring under full throttle

    Help my js 550 has recently started to sputter under full throttle and backfire occasionally. Has anyone else had this problem or does anyone know what i can do to fix it?
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