Maintenance & Technical > KX500 Original
KX500 AF Running like a 200
brooksie:
Change the freakin' pipe! :-D
It could be that the 250 pipe afforded a longer left rad to be fitted. The PO clearly didn't have any reservations about using whatever he had lying around to get the thing up and running. You need a short left rad for the 500 pipe to clear, ie a STOCK KX500 rad with the mounts changed to suit. The pipe really curls round and back on its self on the left, you won't make it work any other way.
LundMx:
Had to try this and guess what, after i adapted the kx250 pipe on there, though it fit better, it ran like a 125! I had to clutch the thing to get it on pipe! Cr500 pipe is a must! (Here is some pictures of the kx250 pipe while it is still on
motopunk:
--- Quote from: LundMx on May 24, 2013, 05:40:19 PM ---Had to try this and guess what, after i adapted the kx250 pipe on there, though it fit better, it ran like a 125! I had to clutch the thing to get it on pipe! Cr500 pipe is a must! (Here is some pictures of the kx250 pipe while it is still on
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a 500 will never run properly with a 250 pipe...!!! :wink:
i used a cr500 pipe and thats the only way for the sf-projekt... :-D
RKPerformance:
HAHA well guys finished my monster garage pipe fabrications and used a cr500 pipe from a SH CR500. Mounted the kx flange and made a little roll dent around the waterpump pipe and blamo she fit like a glove. Got a pro circuit silencer for a cr500 and cut the mounts off and tig welded it in the center where the bike mount was. Easy to get the silencer on the money. Welded my mounts into place and kicked her over. Instantly upon twisting the throttle i knew better things were to come. Geared up and went for a rip, 1000000X better! Changed the kx250 needle out for the stock kx5 needle. Ran even better. Doesnt idle so great tho. Seems to idle high and then after awhile it will idle down and stall. Think there is a 52 slow in there. 165 main. Anyone got any suggestion for me. Vforce 3 reeds, and 40.5mm carb.
PS ya'll were right that old yz bulls**t hillbilly pipe was killin me. I will get pics up of my custom exhaust!
Motorrad:
--- Quote from: RKPerformance on May 26, 2013, 01:41:09 PM ---HAHA well guys finished my monster garage pipe fabrications and used a cr500 pipe from a SH CR500. Mounted the kx flange and made a little roll dent around the waterpump pipe and blamo she fit like a glove. Got a pro circuit silencer for a cr500 and cut the mounts off and tig welded it in the center where the bike mount was. Easy to get the silencer on the money. Welded my mounts into place and kicked her over. Instantly upon twisting the throttle i knew better things were to come. Geared up and went for a rip, 1000000X better! Changed the kx250 needle out for the stock kx5 needle. Ran even better. Doesnt idle so great tho. Seems to idle high and then after awhile it will idle down and stall. Think there is a 52 slow in there. 165 main. Anyone got any suggestion for me. Vforce 3 reeds, and 40.5mm carb.
PS ya'll were right that old yz bulls**t hillbilly pipe was killin me. I will get pics up of my custom exhaust!
--- End quote ---
whats your altitude?
sea level you should be..
58m
168 - 170 M
middle clip on needle.
2-2.5 turn on air screw
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