Maintenance & Technical > KX500 Original
16t sprocket
PowerFiend:
--- Quote from: DoldGuy on May 20, 2009, 01:16:43 AM ---Slow600,
Sounds as you have your K5 running good. You posted else where that you had problems with the 450's hanging on the straights (quick search did not find it). If you are now looking for more gear & spinning the tire you found the solution? I read you switched to the PC2 & the VF2 anything else?? :-D
--- End quote ---
When I was running my 97 CR500 in SM trim with a tired stock topend and only a VF2 and PC pipe, I never had any problems with 450's on the straights. The hardest part of running the big smoker was corner speed, if he was getting past on the straights it was probably due to poor drive out of the corners.
Polar-Bus:
--- Quote from: PowerFiend on May 20, 2009, 05:46:17 AM ---
--- Quote from: DoldGuy on May 20, 2009, 01:16:43 AM ---Slow600,
Sounds as you have your K5 running good. You posted else where that you had problems with the 450's hanging on the straights (quick search did not find it). If you are now looking for more gear & spinning the tire you found the solution? I read you switched to the PC2 & the VF2 anything else?? :-D
--- End quote ---
When I was running my 97 CR500 in SM trim with a tired stock topend and only a VF2 and PC pipe, I never had any problems with 450's on the straights. The hardest part of running the big smoker was corner speed, if he was getting past on the straights it was probably due to poor drive out of the corners.
--- End quote ---
It's the engine braking that the big 4 strokes have. I get my butt handed to me out on the ice oval, for this exact reason. Not from being out accelerated, but from being "out-braked" I also have a YZ450F that I set up this winter out on the ice, and wow, you can stick a 450F DEEP entering a corner (vs. my KX500)
DoldGuy:
I don't want to Hijack this thread, but has anyone used a compression release (in the head / not like Accu setup). We used these in the old days (Flat Tracking) & they really helped the bike setup for the turn by allowing the rear end to step out in a controlled manner allowing you to run it in much deeper. It was very similar to the current 4 strokes (250F/450F) but not as much as the Yamaha TT500 when they came out. Just my thoughts.
kaw rider:
I have a picture of one in the head. It would be alot easyer if stewart made a billet head and then machine the dome for it. Like this one is. Then you would have to machine your cylinder for the decompression valve.
jfabmotorsports.com:
--- Quote from: DoldGuy on May 20, 2009, 08:51:58 AM ---I don't want to Hijack this thread, but has anyone used a compression release (in the head / not like Accu setup). We used these in the old days (Flat Tracking) & they really helped the bike setup for the turn by allowing the rear end to step out in a controlled manner allowing you to run it in much deeper. It was very similar to the current 4 strokes (250F/450F) but not as much as the Yamaha TT500 when they came out. Just my thoughts.
--- End quote ---
What causes engine braking on a 4 stroke?
Why do 2 strokes and diesels not have it?
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