Maintenance & Technical > KX500 Original
Jetting!!! Again and again and again!
Hillclimb#42:
Sounds like a good find. I think 172 is a little fatter than my 500. 170 is what I usually run. There is a jetting chart that is found on a sub-menu on the main page that is very accurate. Also FMF has their own recommendations. If they both are the same, you really will know the answer. I think the FMF just adds a step fatter on the needle adjustment from stock and the Pro Circuit goes leaner a step. Of course, if its aint stock, it's only going to give you a starting point. It will probably sound fat in the garage idling before it gets warmed up and cleaned out. Jetting for the main is changed when its running fat Wide open. You are thinking the idle jet is fat, but I would wait to see how it acts after riding til cleaned out good.
98kaw500rider:
OK , Thanks for your help. I paid 500.00 for it with a title , brother in law just lost intrest in it and wanted it out of his garage. I got it started after about 5 kicks after i cleaned her up. One issue that i am having is the kick starter , seems like about 2 kicks out of 5 it goes slack. I ordered a new ratchet gear and spring for it so i hope that fixes the issue , is that hard to change out ? This might not be the right thread for this question so sorry.
Thanks
Danger4u2:
kick starter.
http://www.kxriders.com/forums/index.php/topic,2318.0.html
Purpletj:
I contacted Sudco to try and purchase some jets. Found out they only sell them in a four pack. Im curious how your buying the singles?
Friar-Tuck:
P.J.
If there is not a bike shop in the area ( Like Myself) there are severl other options.
Most other motosport, Service Honda etc will sell individual jets.
I would recommend making sure the jets are actually Keihin. (drunken star stamp)
I have had several bikes over and although the jets were the correct dimensions externally, the flow rates were questionable. I had a crf80 one of the kids friends re-jetted and appeared to have done everything to get his kids bike to run properly. It would start and idle great but at half throttle it wouls stumble, and die if you tried to open it up. The culprit was an off brand main. I had a keihin, put it in and we got it to scream.
This may have been an isolated incident, but someone else may be able to verify the same type story...
Tuck\o/
http://www.carbparts.com/
http://www.jetsrus.com/
http://www.motorcyclecarbs.com/index.cfm
http://www.factorypro.com/products/Jets,%20Keihin,%20buy.htm
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