Maintenance & Technical > KX500 Original
crank stuffer
doordie:
--- Quote from: BDI on December 28, 2007, 05:36:37 PM ---Just to let you know the cylinder I'm welding on is junk I try out my ideas on it and there is no stress. I have a good grasp on two stroke design but applying my ideas can bee tricky so I do it to that cylinder for the practic of doing it. what I have done could easily bee done and probably done better with some sort of epoxy like JB Weld or my favorite marine tex. If you did this and you are using a V-force you will have to clearance for the petal screws but thats it. I don't think you can go wrong with this. You can over stuff a motor but you would have to work real hard to achieve it.
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Vforce 3 doesn?t have any pedalscrews.... :wink:
doordie:
--- Quote from: kaw rider on December 29, 2007, 07:20:42 PM ---yes you did find it. yes there is a fix. weld up both port around 1.5mm narrower. i do that done when have many other things welded on the cylinder at the same time. i done it on my current cylinder.
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Less portarea or less shortcircuing,kolera or pest? :|
I would use JB-weld and try that before welding..... :wink:
(easy to remove)
Here is a portmap,draw/paint how do you mean kawrider. :|
doordie:
--- Quote from: BDI on December 29, 2007, 04:45:26 PM ---If your piston skirt does not cover the exhaust port at tdc then someone has lowered the floor of your exhaust port to meet the top of the piston at bdc. This would normally be a performance mod on a two stroke motor. On the KX500 the piston skirt is not long enough to cover the port at tdc. This is bad. It's going to allow the return wave from the pipe to shove exhaust underneath the piston and foul the intake charge with exhaust gasses. I have thought about contacting Wiseco about having pistons made with a longer skirt but it would be more work than it would be worth unless I was going to have a bunch of pistons made.
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IF you raise barell and shave of top of barell,you have a win/win situation.
No more uncovered exhaust at TDC and raised portduration for more power/RPM at the same time..... :wink:
(You can also deepgrove cylinderhead and not shave barell at top)
doordie:
This is a easy mod to raise ccr... :-D
BDI:
--- Quote from: doordie on December 29, 2007, 11:44:15 PM ---This is a easy mod to raise ccr... :-D
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Hey doordie those are ceramic main bearings aren't they? very nice 8-)
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