Maintenance & Technical > KX500 Original
KX500 BIG BORE KITS
stewart:
thers a lot of ways to make more power
YUNGGUNNAZ:
if you are gonna do the big bore you'll have to get head chamber cut accordingly if you are set at 0 deck and use steel .010 gasket.also ports will have to be redone to compensate for the bore,including exhaust auxillary ports.not to mention powervalve mods to clear piston.LA Sleeve offers the kit also.hope this helps.
monster malibu:
Hey guys, this is what's done to the bike so far- pump gas porting, Boyesen rad valve with Moose torque spacer, Pro Circuit platinum pipe, racing clutch (brand not sure) 13-47 sprockets. Instead of a big bore kit what else can I add? I was also thinking of a carb over bore. Would I gain anything by switching the pipe out for a gnarly pipe?
Arigato:
--- Quote from: monster malibu on June 28, 2007, 02:43:37 PM ---I can't be the only one that's interested in the big bore kit for the KX500. Somebody's got to have one? :?
--- End quote ---
I had one on my KX as well as a lot of porting, bored carb. etc. It made so much power that it literally twisted the crank. The crank was balanced and welded too. Nowdays I stick with the stock bore and get my power from the porting and other mods.
don46:
I have 2 K5's with 3 different motor's, one is a LA sleeve 540 (that is really only a 527) the other is a 560, and the 3rd motor is a stock 86x86 with the head cut and the piston modded. The 540 is on Nitrous so it's really hard to tell just how good it runs in stock trim. The 560 has tons of torque but doesn't rev very fast, and the stocker revs quick and has tons of overrev, it'll pull 15-48 gearing no problems (hillclimbing).
In my quest for power I've tried many combinations, and frankly the cheapest route was as good as any of the others, invest in a lectron.
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