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Odd sounds on leaner jets

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  • isaac
    replied
    Okee well I fixed that problem because some stator wires were disconnected somehow and the bike was slowly draining, but this problem is so different that I'm starting another thread. Mmkay?

    Leave a comment:


  • isaac
    replied
    Well I got a big clue on this one. The damn thing's not charging. Do the stators normally go out on these things at 15,000 miles?

    It was rapidly dropping from 11 volts down as I watched it with the meter.

    Leave a comment:


  • isaac
    started a topic Odd sounds on leaner jets

    Odd sounds on leaner jets

    I bought my bike with the stock 138 front and 132 rear jets, UNI pods, and stock pipe. I rode it like that for a couple of months then couldn't stand what it did above 6,000rpm anymore.

    What it did was make these popping sounds that approximated detonation that I've heard many times in my modified turbocharged Volvo, and it didn't accelerate nearly as quickly as it should. I could do a wheelie and as soon as it passed 6,000rpm it'd make those noises and sit back down again.

    So I changed up to 145 mains on both cylinders (no needle adjustments) and went for a ride. No more popping, and no more lack of power up top. I went to the track a month or so ago and ripped off a [email protected] That wasn't as fast as it should trap, because it was about 60 degrees (industry standard for SAE correction) and I weigh considerably less than magazine test riders who've trapped 100-102mph on a stock hawk.

    Regardless, I rode around like that until today. I wanted to see if putting a 138 jet in the rear head would change things for the better. I did the swap, rode it 20 miles, and there was no popping or lack of power, but it didn't feel like it picked up much power either.

    Then today on the way home, I did a wheelie, came down, and all the sudden it's doing the damn popping and lack of power thing again.

    I changed the rear jet back up to 145, and it's still doing it. It'd never done this with 145s before. I checked the needles and they seem clean. The diaphragms seem ok too.

    So what the hell? Anybody experience this before?
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