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Posted

I just bought a Blaster this weekend, got it running good, but its vibrating like a mother. I dont think the crank bearings are bad. The motor is in tight...

 

I know its not about a banshee, but does anybody know what can be causing it to vibrate so bad???

 

CJ

Posted

well

 

 

vibrating at idle

or 1/2 throttle

or moving down the road.

 

say 10 mph or like 60 mph

 

many variables for advice is needed

Posted

not so much idleing. Its mostly when im riding in the gears...the higher the rpms, the more vibrating...

 

it hurts so bad, i have to take my feet off the footpegs till the rpms go down.

Posted
not so much idleing.  Its mostly when im riding in the gears...the higher the rpms, the more vibrating...

 

it hurts so bad, i have to take my feet off the footpegs till the rpms go down.

385076[/snapback]

it does or doesn't vibrate in neutral if you hold the throttle open?

Posted

check all the bolt around the motor and see if they just might be loose. if not, i dont know what to tell ya :bolt:

Posted

I did that...I'll go over it again tho. It makes me mad because it was supposably blown up...but here the piston ring was just stuck in the piston, so i got it unstuck and it had compression and ran but then it made a clunk'n noise in the motor. I thought the whole bottom end was shot, but here the key way was busted and the fly wheel was just lose. I put it back together and it ran good, but vibrated so bad. It's like i keep making out good by fixing it, but everytime i fix it, theres another problem. I'm trying to get this thing good for just the $550 that i paid for it. I'm trying not too stick too much money into it. I was hoping just to buy all new gaskets for the motor then sell it.

Posted
I did that...I'll go over it again tho.  It makes me mad because it was supposably blown up...but here the piston ring was just stuck in the piston, so i got it unstuck and it had compression and ran but then it made a clunk'n noise in the motor.  I thought the whole bottom end was shot, but here the key way was busted and the fly wheel was just lose.  I put it back together and it ran good, but vibrated so bad.  It's like i keep making out good by fixing it, but everytime i fix it, theres another problem.  I'm trying to get this thing good for just the $550 that i paid for it.  I'm trying not too stick too much money into it.  I was hoping just to buy all new gaskets for the motor then sell it.

385150[/snapback]

ah now the truth is out...

:dance::dance:

new everything should fix it up.... <_<

seriously there is something wrong in there, clunks usually mean su fin...

you can get a complete crank and rods for around $200...

blasters are fairly cheap to build I say build it ride it then sell it..

Guest nightmare
Posted

I just had a similar problem with my wife's. I changed the gasket on the clutch cover. Then I had troble getting it to start, and when it started it rattled and vibrated. Turned out I broke off the oil line from the pump to the carb. It tore off up at the carb and was running lean. put a new one on and fixed the problem. I have since gotten a oil injection block off. Just don't trust it.

Posted

If someone tore the motor apart before you got it they may have not aligned the weight in the tranny properly with the crank. It's number 2 in this diagram http://216.37.204.202/yamaha_oem/YamahaATV...pe=13&A=113&B=5

 

There is a gear that you can see when you take the clutch side cover off. It has a dot on it. That dot should meet the dot on the crank gear when rotating. If they don't you'll get a terrible vibration.

Posted
I just bought a Blaster this weekend, got it running good, but its vibrating like a mother.

385072[/snapback]

well duh, they were designed for chicks. :shrugani:

Posted

haha...Idk...Maybe i'll figure it out...Ill check and see if those black dots line up and all...Thanks for the help. Sorry i didnt get back to y'all, I was in Florida and jut got back today (wednsday)...

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