Question about 2008 Beta RR 450

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Acceleration vibration I got out for my first ride of any significance today and I noticed that when I accelerate the bike kinda vibrates. Not real bad. I just feel it in my butt really and the bike itself doesn't seem to be shaking. It only happens on acceleration. At a steady speed it is fine. Think that is due to the fact I prolly need a carb cleaning? Or could it just be part of the personality of the bike? I also noticed that it only smokes out of the left exhaust pipe for those that remember the other 'smells of gas' thread.

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Need to get the carbs synchronized Tom. sounds like you are still getting a rich condition in either/both one and two cylinders resulting in uneven combustion pressures. Getting your carbs sync'd should fix the vibration and the overly rich cylinders ,

Posted on Nov 10, 2008

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1 Answer

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hi,
The problem is in the alignment of the piston.
It might be possible that due to rough riding
the piston would have become loose in the cylinder.
In this condition bike starts vibrating when acclerates as well as it start losing the pressure in the cylinder which causes the losse of fuel.

Align the pistion properly and PLEASE check the pistion rings(all three,four of them).
If anyone of the rign is faulty then my advice would be to replace all of them as they comes in a pack of four/three.


do this problem will b over

cheers

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