I am having the same problem too mate. I am going to pull the carbs tonight and clean the piss out of the jets. I suggest you do the same if you haven't already !
929 low rpm surging
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You think this is the issue? run sweet after you hit 3000 rpm?
might be worth a try though let me know how you get on
Mark
My bike runs sweet after 2500 rpms when it's warm. Tons of power, runs perfect 2500 to redline. I believe this is because the main jets are clean and free of debris.
Between 1000 and 2000 RPM the bike hesitates and cuts out, especially when cold. The pilot jets control the idle and the low RPM of the bike. This leads me to believe the pilots are clogged, and not injecting fuel, causing the lean condition and cutting out.
Either way, the jets and the carbs should be cleaned quite often, especially is the bike has been sitting for several months without being started. The fuel can go bad after only 90 days. It leaves buildup in the jets and can cause fuel starvation.
I will report back as soon as I clean my carbs. If that doesn't fix the problem my next assumption would be a bad cam chain tensioner. I have heard the CCT's go bad after only 10-15k miles on these Honda engines.:thumbd:
lol this thread is back from the dead ! :nono:What bikes are we talking about, because it's obviously not 929s any more
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Yeah I know. Moved on from 929's 2 years ago, to talk about carbs :huh:
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nope still talking about my 929 RRY. think it might be the exhaust valve?
Back to 929/954 surging under 3k rpm. My 54 was doing that some time ago an I did all the suggested posts from this forum. I ended up changing the spark plugs and it got better. But after 500 or so miles it started bucking again. After lifting the tank I noticed a coil stick not seated all the way. Reseated it and good for another 1k. Got tired of lifting the tank every so often and just bought new sticks. Did a quick throttle balance and been good since. My $0.02.
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I know this is a little off topic but I just bought an 06 CBR 1000. It ran perfect till it got above 8000 rpms then it would sputter like it was running out of gas. It was the ECM. Whoever had the bike before me had a power commander and fried the ECM when the took it off to sell the bike. Hope this helps someone, I found a lot of threads with similar problems but no one ever posts the fix.
Hey guys!
Sorry for waking this old thread!
I was searching for a solution to this problem, for my own 929'r (yr 2000).
After troubleshooting for a fairly long time, i found that the Fuel pressure regulator, didn't work properly. The regulator is suppose to pump gas, back into the tank, and block gas from flowing back into the engine. BUT, my regulator didn't block on the back-flow, so obviously Cyl 1-2-3 was wet. I started to have problems on engine start, so i figured that i would have to do something drastic
I've replaced the regulator, and now the black smoke, from rev'ving is gone, and i've got a clean flow in the engine rev, from 1100rpm - whenever the red mark starts
So in all:
It fixed my idle-3000 rpm surging
It fixed the black smoke (rich blend)
It fixed my temper hehe
I decided to up this subject as i see a lot of my fire blade brothers got the same problem, so ofc i wanted to share with you, if you haven't tried it yet.
I hope it helped some of you.
Im sorry if any of you are annoyed by upping an old thread.
Happy driven guys!
Sorry for waking this old thread!
I was searching for a solution to this problem, for my own 929'r (yr 2000).
After troubleshooting for a fairly long time, i found that the Fuel pressure regulator, didn't work properly. The regulator is suppose to pump gas, back into the tank, and block gas from flowing back into the engine. BUT, my regulator didn't block on the back-flow, so obviously Cyl 1-2-3 was wet. I started to have problems on engine start, so i figured that i would have to do something drastic
I've replaced the regulator, and now the black smoke, from rev'ving is gone, and i've got a clean flow in the engine rev, from 1100rpm - whenever the red mark starts
So in all:
It fixed my idle-3000 rpm surging
It fixed the black smoke (rich blend)
It fixed my temper
heheI decided to up this subject as i see a lot of my fire blade brothers got the same problem, so ofc i wanted to share with you, if you haven't tried it yet.
I hope it helped some of you.
Im sorry if any of you are annoyed by upping an old thread.
Happy driven guys!
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Hi all. Did this get sorted?
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I’ve had my 929 since new, so I’ll throw in my $.02. Even when new the bike would kinda surge if even the slightest positive throttle was applied under 3k rpm. If you still have the automatic valve in the exhaust and it sticks a bit this can contribute to a low rpm lag as well.
But I really think it is just you not riding at a high enough RPM!
But I really think it is just you not riding at a high enough RPM!
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