Maintenance & Technical > KX500 Original
640cc KX
SandToyz:
hehehe sorry.
I didn't use anything just wash them and that's it and the flash give a shine pics.
i feel the power from the 3rd gear and up till the 5th.
we are racing up hill (hill shooter) for like 250 meter = 750 feet and the distance between the two bikes are more than 5 bikes length.
orderofsion:
surely the costs involved are huge , oneoff pistons ,stroked cranks oneoff exhausts . wouldnt it be cheaper and easier to sell your kx engine and fit a MTH or Zabel 700 . these can be picked up for ?1000 ($1900) and produce 85hp as standard also all the r&d is already done so no problems with carbs,jetting,exhausts etc mind you theres a guy in Oz working on a turbo f/injection cr500 !
gowen:
It's all about having a bike push it's limits. Also, the larger the bore, the slower the bike revs.
KXcam22:
Sandtoyz,
Do many guys run alcohol (in the bike of course ha ha)? A friend of mine modified his rotax 640 for alcohol and it was neat to see the difference in power. Had to drill a few passages in the carb and change the jetting. With the huge mainjet the mileage was really bad. It was tough to go on a ride without everyone in the group carying some fuel for him. I recall seeing a mag article a few years back on doing this for a CR500 for a pikes peak type hillclimb. Cam.
SandToyz:
yes me and all the racers are running al cohol for our race bike and as you mentioned it is hard to use al cohol for dunning bike.
Yes you will gain some extra hp switching to methanol and this is from my experiance with our CR500 it was on Racing fuel then we switch to alky and we try it with the other bike and give it like three bikes up the hill, then we switch all our bike to al cohol.
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