Maintenance & Technical > KX500 Original
KX5 upper pipe mount Rebuild/Mod
FuriouSly:
Hey Apple: The frame is made of steel and the weld is done with my Miller MIG. The subframe is made of aluminum and I repair that with a Miller TIG. Sounds like you need to stay on top of the chain adjustment so that you don't get that rubbing on the subframe. An O-Ring or X-Ring chain of premium value is a good way to ensure a longlife-low maintenance chain that has minimal side to side deflection. Usually around 80-120 bucks is the range.
Cam: Arigato and my wife FiXXeR got me the Gnarley pipe for Fathers Day. Arigato and his Bro 1AllDave are long time KX wrenchers. Arigato personally did the High Temp RTV to the pipe before delivery. All three mounts have RTV and it does keep the vibes down and ultimately the welds from tearing. You need to let the upper mount (the most RTV) to sit for about a week or two to cure, or slowly add layers to it. But you would have to give each layer a good purchase point to adhere to. Gotta love friends that will get dirty behind your back for you!
Sly
FuriouSly:
Another update on the pipe situation... I just got back from a day trip to Dumont Dunes with a friend and the top mount is solid and the anti-vibe brackets look good. Did some 80 footers, alot of step downs, and all around cruisin'. BUT, the bottom pipe mount on the frame is broken now. I did notice that the lower anti-vibe bracket had to have some flex on it since the gap between the pipe tab and frame mount is a little tighter than optimum. So, it looks like I am going to make a new bottom and rear frame mount for the pipe. Those stock frame mounts are definately cheesy weak and flimsy! I will keep you all informed of the rebuild/mod progress.
This bike ultimately is getting set up to do 100 foot+ jumps in the dunes on a regular basis. So in the next 4 months or so I should have all the failure points worked out. The suspension is getting stripped off right now and off to the tech.
Sly
Spider:
Careful you don't get the bike's brackets too strong and it breaks the pipe's bracket.
I like what you've done so far though.
Dale
apple:
Hey Sly, thanks for the info. I`ve heard that some frames are make of certain alloys that you can`t weld without knowing what their makeup is, so I was a little worried. No probs now.
Later.
Jack
KXcam22:
Thanks Sly,
I got a tube of that in my shop. I think I'll fill mine too. Thanks for the info. Finally cooled down here enough to go riding (although probably not the hot that you are used to). Cam.
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