Wdugan9080
Supercharged
Today I balanced the throttle bodies, reset ISCV and reset adaptives. I have had a stutter at around 2000rpm @ constant throttle. No problem at idle or accelerating. Weather is not cooperating for test ride yet. I hope this sorts it.
I did something like this couldn't find the fuse so I put a 6mm I think, bolt on the gas hose and cranked it, about 15 to 30 seconds, didn't want to overheat the starter too much, put it back together, did a compression test, all about 195psi and put iradium plugs in it, and it's running a lot better, I used to have that hesitation at around 2,000 rpm but I don't have a tach. Every once in a while, couldn't get it to do it all the time, now I think it's gone. Good luck, iradium plugs are expensive like $9 a piece but I found a discount at advance auto parts with 25% off plus $10 from rewards, got them about $6 a piece. Good luck
Does it do it constantly at 2,000 RPM? Mine just did it occasionally. If it's constantly I've heard the coil primary wire's get loose and you have to squeeze them together a little bit, not too much or you'll have a hard time getting them back on, clean the connections really good, I do it like this, works pretty good and finish off with some contact cleaner to dry them, and lather with dielectric grease, except fuel injector connections I heard they don't like too much grease, I'd be careful with the ECU too, I looked at mine, it was sealed really good and I just left it alone looked clean and I believe if it ain't broke don't fix it.
But if it was a vacuum leak I would imagine it would do it all the time, does it idle fine? Not ruff?
Well there's some good people on here I learned a lot just reading post's. I guess it could be a coil going bad but I don't see it only doing it at 2,000 RPM. I would look for dirty connections in the fuel system, pump, fuel pressure low, injectors, ignition, and controls. I cleaned a lot of connections the fuse blade's with a wire brush and contact cleaner and in the fuse block, I wouldn't put any water in there, maybe some grease but I didn't. Clean the connections on the relay's and grease, and just look for dirty corroded connectors and clean and grease everything. And step one disconnect the battery.
Well I just checked out your signature page, your a machinist, with a lot of nice bike's, I'm sure you have some ideas and probably know more about bike's than me





I hate intermittent problems, I couldn't reproduce mine, it would hickup once in a while.


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