Recent content by c0zgrove

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  1. C

    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Alright guys, I think I've got it all working now. Unfortunately I can't really say exactly what fixed the problem because I think it was likely a combination of things. However, I completely rebuild the carbs today and replaced all the rubber inside as well as the idle mixture screws and...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Yea it does. I've been able to recreate the problem with and without throttle cables connected at the carbs. I think next I'm just going to completely disassemble the carbs and look for potential problems.
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Do you remember which o-rings they were?
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I make sure to do this every time I reconnect the cables
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    It definitely does it straight up, I've been working on it on the center stand and was also sitting on the bike with it upright when I made that video. I checked/adjusted the floats when I had the carbs off to change the vboost boots. I synced the carbs with a 4 gauge synchronizer and I made...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I tried to get a video of this issue but every time I turned the camera on the bike acted normal. Here’s the only video I got of the bike acting up but it’s not quite where the idle drifts up to 3-4k rpm and stays.
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Ok I’m at a total loss now guys. I’ve now replaced all the vboost boots as well as went ahead and put new plugs in. I made sure to put the short screws in the right place when installing the intake. I went through and cleaned every electrical connection I could get to with contact cleaner. The...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    That's what makes this forum such a great knowledge base. And don't thank me, thank the guys that are responding with suggestions! I'll be sure to document the rest of my debug process here for future reference.
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Quick update, I tore into everything last night and found that on one side of the motor there was a small tear in one of the rubber vboost boots. I also noticed on the other side of the motor a hairline crack in one of the intake manifolds. I also went through and confirmed/adjusted the floats...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I had seen some debate on whether you should lube a slide or not online yesterday so I figured I would clean them completely and try running them dry. They seemed to be moving fine beforehand but I'm trying anything at this point. I think I can rule that out for now, same behavior in both cases...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    Forgot to add, I did double check that the vboost servo was moving properly when I turned the key on but during my test ride the bike seemed really down on power, especially up top.
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I double checked that the slides were moving OK then went for a test ride. I noticed that the idle of the bike would drop maybe 200rpm or so if it was idling while leaned over on the kick stand vs upright, which I thought was strange. While I was out riding the bike seemed OK at first then it...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I've been slowly bringing this bike back from the dead so everything I listed above has been done recently. I feel confident the throttle cable is ok. I replaced upper pull/push cables yesterday and was careful to make sure they moved freely no matter what position the bars were in. I'll have...
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    Idling motor, blip throttle, then suddenly motor revs to 4k and stays?

    I've been having this phantom problem where I blip the throttle while the bike is idling and sometimes it will rev up to 3-4k rpm and just stay there. Is this a vboost problem maybe? Background: Shotgun carb clean has been done, carbs are synced, intake boots replaced, valves adjusted, throttle...
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    Oil leaks everywhere! Help!

    Thanks for the suggestions. I'm not stacking washers, I just tried 2 separate ones with no luck. I just replaced the valve cover gaskets this weekend. Unfortunately I'm working on the bike out of a storage unit so I'll try to clean up the engine best I can and try the powder trick to isolate the...
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