Need a 1988 KX 500 crankshaft

[Apoole6]

I recently purchased my second KX 500. It had issues when I bought it, he crank has side to side play which I know usually means a spun bearing or such.

I can't for the life of me find a crankshaft for an 88 model.

Any info on compatability,if anybody has one they could get rid of, or any suggestions on what I could possibly do to get this bike running would be much appreciated.

Thanks!

[Apoole6]

I have cash in hand and willing to pay top dollar for one if somebody has one.

[sandblaster]

Yep... That crank is a one year only.
Here is some info that might help you..

http://www.oem-cycle.com/forum/viewtopic.php?f=49&t=344&start=10

[dave916]

I recently purchased my second KX 500. It had issues when I bought it, he crank has side to side play which I know usually means a spun bearing or such.

I can't for the life of me find a crankshaft for an 88 model.

Any info on compatability,if anybody has one they could get rid of, or any suggestions on what I could possibly do to get this bike running would be much appreciated.

Thanks!

Any year crank will  fit the 88   88-2004
86/87 u would also do but you would need the primary gear / nut / keyway
86 is heavier

U could weld/regrind the journals on your own crank

IT also could have spun the bearing in the cases

[Apoole6]

Are you sure? Has anybody done this before? Just don't wanna dump more money and have it not work out. Thanks!

[umberto]

Dave916 knows a lot about the 86-88 500s. I asked him so many questions when I was building mine. The 88 motor actually shares a lot with the 89 and up motors, with the cylinder (KIPS) being the major difference.  The cases are pretty similar too. I actually bought a set of 89 and up for mine to keep as a spare set (thanks to Sandblaster). The 86-87 motors have a lot of similarities, but not much carries forward to the newer models besides the cylinders, which can be made to fit.

[dave916]

Are you sure? Has anybody done this before? Just don't wanna dump more money and have it not work out. Thanks!

 Yes i am 100% sure any  88/2004 crank will   fit / {Circlip primary gear }
88 looks a little differant because of balance holes on ether side rod conrod /89on crank is just countersunk more in that area {they are the same weight}

Probably 70% of all secondhand kx cranks  will have a worn journal/  look for shiny journal 

[Apoole6]

Thanks! Found a new 89-04 crank assembly for about 500 so I think I'm gonna try to go with that.