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Author Topic: engine vibration  (Read 3700 times)

dandan

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engine vibration
« on: July 17, 2005, 08:21:49 PM »
i noticed a vibration on my bike about a year ago. i originally thought it was the hiway pegs i installed. it stayed at a consistantly low level until recently. about 400 miles ago i installed a barnett clutch. it was good  :grin:. a couple weeks ago the vibration got very noticeable above 3500rpm :sad:. i pulled the clutch and it looked fine. next i checked the motor mounts-both wore out. i replaced them and the vibration is about half gone. has anybody else experienced anything similar :?: thanks for your support :thanks:
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Offline Red01

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engine vibration
« Reply #1 on: July 19, 2005, 07:48:55 PM »
Which size Bandit?
What motor mount(s) wore out?
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Paul
2001 GSF1200S
(04/2001-03/2012)
2010 Concours 14ABS
(07/2010-current)

dandan

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vib
« Reply #2 on: July 19, 2005, 09:10:37 PM »
it's a 97 1200, the front rubber/"eurothane" mounts are the ones that wore. as far as i can tell from the ron ayers website, they are the only soft mounts. also i just changed the plugs and the #2 plug was greyer than the others. maybe carb sync? :thanks:  :?:  :thanks:  :?:
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Offline Red01

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engine vibration
« Reply #3 on: July 19, 2005, 09:22:48 PM »
Maybe. Or maybe #2 is in a little different condition than the others.
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Paul
2001 GSF1200S
(04/2001-03/2012)
2010 Concours 14ABS
(07/2010-current)

dandan

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condition
« Reply #4 on: July 19, 2005, 10:51:09 PM »
i had it running tonight and i noticed a sympathetic vib at around 3500revs. this was on the center stand in neutral. i rechecked the other mount bolts- aok- the S O B is driving me nuts. i have 49, 000 miles on it and this is the first issue i've had. if i keep it below 80 mph it's not really noticeable. but that isn't gonna happen. it's so sweet to cruise over a ton. (not that i've actually done that, just what i've heard :lol: )
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Offline ray nielsen

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engine vibration
« Reply #5 on: July 20, 2005, 11:28:28 AM »
I did a couple of things to minimize vibration on mhy 2003 naked Bandit 1200.  First I made sure all the motor mounts were tight and to torque spec.

Then I carefully balanced the carbs.   I then installed Manic Salamander bar end weights to quell the vibration with very good effect.  Finally I went for a 16 tooth countershaft sprocket to drop the RPM a bit at highway speeds.  This had the added benefit of correcting most of the speedometer error.

I can ride at 70-75 MPH in relative comfort now and with minimal vibration, although I can still detect some if I'm not wearing gloves.
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dandan

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engine vibration
« Reply #6 on: July 20, 2005, 04:30:19 PM »
thanks for the info :motorsmile: i'll be syncing the carbs next.hope that'll work :thanks:
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Offline Jehu Bandit

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engine vibration
« Reply #7 on: July 20, 2005, 09:57:12 PM »
Sounds weird but I had my carbs sync-ed when i had the 600 valve adjustment done and believe it or not - the vibration actually got worse! I have issues with my right hand/wrist/lower arm but I am not on a mission to deal with these vibrations because I do really like this bike!
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dandan

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vib
« Reply #8 on: July 20, 2005, 10:55:12 PM »
i had it (my bandit)out tonight and the buzzing got worse as it got warmer, i could even feel it at idle :shock: after a little hiway burn it seemed to quiet a bit but was through more of the rev range. i think i'm going nucking futs :grin:
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dandan

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engine vibration
« Reply #9 on: August 01, 2005, 12:02:20 AM »
i finally got it :banana:  :banana: i synced my freakin' carbs today and all is right with the world again :grin:
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