Maintenance & Technical > KX500 Original
New Owner
95formula847:
i took it out a rode around my property. It still wont idle and is a pain to start. Im just gonna take it to a shop next week cause im gettin p.o. ed at it.
shumard78:
hey doldguy you still want to sell that pipe?? :? mine has been dented badly ..R.I.P pc works pipe that some A hole spray painted black ..lol but ya im interested and in bad need of a new one.. :-P
DoldGuy:
Sure do. :-D
95formula847:
took the carb apart and found the pilot jet clogged. Put it back together and it runs way better. Rode at greenridge this weekend and weas destroyin everything in my path. Bike still wont idle but atleast it runs off idle like a raped ape. 4th gear power wheelies are no problem! its nice to be able to eat everything on the trails without even tryin. I was blowin past 450s, 250 two smokes. I rode with my bud on his raptor and he rolled it end over end tryin to stay with me. Luckily hes okay. He was a ways behind me so i didnt see him roll.
kxpegger:
--- Quote from: 95formula847 on June 29, 2009, 12:09:35 PM ---took the carb apart and found the pilot jet clogged. Put it back together and it runs way better. Rode at greenridge this weekend and weas destroyin everything in my path. Bike still wont idle but atleast it runs off idle like a raped ape. 4th gear power wheelies are no problem! its nice to be able to eat everything on the trails without even tryin. I was blowin past 450s, 250 two smokes. I rode with my bud on his raptor and he rolled it end over end tryin to stay with me. Luckily hes okay. He was a ways behind me so i didnt see him roll.
--- End quote ---
Between your TT posts and here I'm trying to keep up. I forgot to mention in the post where I gave you jetting recommendations that this also requires a #7 slide (throat cut). So I'll post it all here. A good place to start is 55 pilot, 168 main, 1 1/4 turns out from full clockwise position (all the way in) on the air screw and a #7 slide. The needle position can be adjusted from the middle up or down as required for best throttle response off idle. The idle screw can be turned in for a high idle to get it started and then adjusted for best starting especially when warm and driveability and idle speed.
Sometimes taking a coil off the idle screw spring will help you temporarily to raise the slide a little more for a higher idle but a lot of times it's that there is wear at the contact point of the screw pin where it meets the slide.
My 500 came with a 58 pilot, 175 main and a #6 slide. I had idle, surging, starting when warm issues and was loading up quite a bit no matter how much I was on the gas. It was a little bit of a hassle but thankfully it was all tuning issues. I got a lot of help from the guys here and you'll soon figure out who some of the resident rocket scientist are. When you get the bugs worked out... all other bikes will seem like pit bikes! Good luck with your 500 and don't give up.
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