Maintenance & Technical > KX500 Original
Powerband too short
Gage:
Ya that was it I wore my foot off out on those 4 or 5 kicks. The bike seems to rev out ALOT better than before. The wheel is coming off the ground in 2nd. And 3rd when I chop it hard, Im certain there more power to be had. I have a 185 main in it now, which feels a little bit blubbery up high. It doesn't surge AT ALL when letting off the throttle now either, I lowered the idle down and the air screw in 0.5 turns out. The revs still dont feel right like its cutting out a bit short in the upper rpms, or Idk how to say it, like the bike loses power sorta. Im going to take it to a long road tomorrow and do some chop runs and check the plugs. Do you guys think that that lower pilot will help out a bit, it's farting oil outta the muffler still. Shouldn't the air screw be out more as well?
Foxx4Beaver:
Ideally the air screw wants to be 1.5 turns out....give or take a 1/4 turn.
Here,scroll down to Sandblasters post....this is one of the better explanations for your air screw setting....and jetting in general on here.
http://www.kxriders.com/forums/index.php/topic,10910.0.html
A 185main is like a fire hose :lol:....you should be able to drop down to mid 170s.
Repack your silencer too...start off fresh..that thing's probably saturated with spooge.
What size pilot is in it as of now?...what position is your clip in?
Another quick simple thing you can verify,is where your timing is set at...that can change the power curve/delivery in ways you're explaining ....the previous owner could've played with it.
Gage:
That's a good link, they should sticky that some where. Okay so I'm at a 58 now, clips at the top. Now that I see that the pilot circuit effects the main as well to some extant, Should I just wait until my 55 gets here? Not even bother with the chop runs, will it effect it that much? I think the stators in line with the marks, Ill check that too. Thanks for the help
Foxx4Beaver:
I'm thinkin the 55Pilot will be a better choice....
Drop the clip down to the middle...(3rd from top)...being where it is now(at the top),it's in the leanest position...not a good place to be.There's a chance it might be a bit rich in the 3rd from top...but try it....it should help.
Then you can try the 2nd from top if it feels blubbery being in the 3rd from top.
And definitely do the chop runs....and let us know how the plugs look...pics help :wink:
Gage:
Didn't get to the chop runs yet, rain! Right or wrong???
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