Maintenance & Technical > KX500 Original

K5 vibrates real bad.

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Foxx4Beaver:
I'm very close to your elevation...

I found for me, the best combo was...

168 Main
52 Pilot
N82T Needle...with clip in the 2nd from top
1 3/4 out on the air screw.

I don't think this will benefit you though.

dirkster:
did the jet change and put in a new plug, decided to go a mile down the road and go up a logging road. did alright besides the vibes comin back down i stalled it and i looked down and the bike f#(king vibrated the bolt that holds the kickstarter on out so no more kick starter and no more bolts holding the muffler on either. i am realy starting to hate this bike.........

Foxx4Beaver:
oh man...don't give up on her...these things require love...
and lots of blue Loctite.

dirkster:
finally found the kickstart in the ditch. took the exhaust off to see the crack its prety big and theres a crack almost all the way around where it connects to the muffler. gunna try and hold off on getting a new exhaust for it till i figure out the engine problem. does anyone know if the stock cdi has a timing curve? cause that could be the problem, the cdi that is on it now is off a late 70s yamaha 400 and is the last thing i can think of that could cause the poor running.

dave916:

--- Quote from: dirkster on November 13, 2016, 12:14:23 PM ---finally found the kickstart in the ditch. took the exhaust off to see the crack its prety big and theres a crack almost all the way around where it connects to the muffler. gunna try and hold off on getting a new exhaust for it till i figure out the engine problem. does anyone know if the stock cdi has a timing curve? cause that could be the problem, the cdi that is on it now is off a late 70s yamaha 400 and is the last thing i can think of that could cause the poor running.

--- End quote ---

You need a cdi [yes it has a timing curve}
The most likely cause of vibration would be a out of true {balance}crank but i would get a proper cdi first

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