Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
Not a GOOD Day on the 500 AF
don46:
--- Quote from: gortex on March 08, 2011, 07:23:24 PM ---Now i think my engine builder was right in getting me to have a stronger cr500 rod installed into my fully modded kx500 engine, also a (AF) bike. Being a six month rebuild including frame mods, new pics will be posted soon good luck with your AF they are awesome.
--- End quote ---
What makes you think the Honda rod is stronger? There has been much discussion about KX5 rods and the reason they break, there is some thought that the length of the stroke is really the issue, the rod ends up in a bad angle causing undue forces on the rod, if this is the case your Honda rod will not fair any better. I have Honda rods as well, and maybe the material is different but dimensionally they are about the same size, obviously different lengths. The later KX rods appear to shot peened, something the car guys do, so I don't know
dave916:
Any chance the crankcase could have cracked at the front mount after landing a 70foot jump??
That front mount looks pretty strong if there was any flex in frame
Extreem:
--- Quote from: dave916 on March 09, 2011, 06:01:14 AM ---Any chance the crankcase could have cracked at the front mount after landing a 70foot jump??
That front mount looks pretty strong if there was any flex in frame
--- End quote ---
I was wondering the same thing.... Did you case the bike landing the tripple ?
jholt:
after alot of investigation I do believe piston came apart and started the chain reaction. You can see were the rod exited the cases after being broke. SO I don't think that frame caused any issues. I am hoping today that I am going to pick up a 1995 KX 500 I haven't seen it yet but is supposed to be in good condition so we will see I got him at $800.00 dollars right now... Also if you anyone knows someone that would like one rolling chasis I have a 1993 and if this deal goes through I will have a 1995 Rolling chassis for sale.
jholt:
Picked up the doner last night 1995 KX 500
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