Vibration... - Page 6 - Honda Rebel Forum
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post #51 of 54 Old 03-03-2019, 02:27 PM
Join Date: Aug 2008
Location: Monroe, Louisiana
Posts: 28,459
What's your point?

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
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post #52 of 54 Old 03-06-2019, 02:46 PM
Join Date: Nov 2016
Location: Chandler, AZ
Posts: 769
I never notice the Rebel having much vibration. It has a high frequency buzz at high speed/wide open throttle. All engines have harmonic vibration. It happens only at certain rpms, or at least is a lot more noticeable at certain rpms. Changing the gearing could change the road speed at which the harmonic vibration is worse. The Rebel is a 360 degree engine, which means the pistons go up and down together. And it has no counterbalance. It is going to vibrate more than a 180 degree engine. Personally I wish they had designed it with a 270 degree crank to give it some character, but the Japanese manufacturers don't like character. My old 1966 Triumph Bonneville would literally move across the garage floor if you revved it on the centerstand. And my current Sportster 1200 is like riding a jackhammer down the road. It shakes so much at idle that it looks blurry. The mirrors are worthless at all speeds.
JerryH is offline  
post #53 of 54 Old 04-12-2019, 06:41 PM
Join Date: Dec 2018
Posts: 31
ironically the harley I rode after i worked on it (required by the dealership) becomes so smooth after 20mph you can't tell you're riding anything. lol.

2005 Rebel 250
yamaharacer is offline  
post #54 of 54 Old 07-02-2019, 03:47 AM
Join Date: Jul 2019
Posts: 4
I had similar shaky mirrors on idle. I changed from 87 octane to 89 and almost all my bad vibration has gone away. Now she's smooth as silk. But it also has warmed up considerably from the 50F-60F degree weather we had been with.. I don't know if that effects engine vibrations but whatever... switch your octane and see if it fixes your issue.
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