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    '90 Yamaha 650 SJ Won't Fire "Enough"

    Weirdest thing. Looks like I'm intermittently getting spark. It'll crank and immediately fire once and then won't fire again. I've pulled the plugs and I've both seen spark, and not. It's not a fuel problem I'm almost positive because I've primed it and sprayed some thrust into the...
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    My New Paperweight

    Yeah, it had a primer. No hard starts, was running fine. Sounded different than my 650, but figured that was to be expected, and didn't sound "off" to me. I rode it the day it died and didn't notice anything. No carb problems that I know of. In fact, I just stole the carb from the 701 to put...
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    My New Paperweight

    Oh yeah. My son tried cranking it out at the river and just heard a nice "clunk". When we got it home, crank would wiggle a little, but I think whatever is in there has wedged itself nicely. I'll eventually pull it apart and see what's what. But right now, no amount of engine rebuild is in...
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    My New Paperweight

    Maybe so, but the crank still won't budge and when we pulled the block apart, the racer fell out. I haven't seen the extent of the damage, but it's locked up somewhere. It's not just the stator.
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    My New Paperweight

    Whatever the hell the bottom of the block is called. The crank wouldn't budge, so there wasn't much for it. I'm new to this whole thing so don't know what all the parts are called. I pulled the cover off of the stater, then pulled the mounts off, then the bearing cage or whatever. When I...
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    I Didn't Do It

    Bought this '90 SJ 650 last summer. Had a nice hairline crack hidden behind the exhaust tube, nothing showing on the outside. Took it out to the Colorado River couple months ago and jumped it around a bit. Next thing I know, it's taking on water like crazy. Took it to shore, tipped it over...
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    My New Paperweight

    94 SJ 701. Just bought the damn thing last summer. Part of the stater busted off and what looks like a bearing racer fell out when we pulled the oil pan off. 3 of the 4 motor mounts were hosed as well. Suffice it to say, this one is going nowhere any time soon. Probably just going to...
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