jetting recommendations

[saki5ridr]

just bought rad valve have 2002 kx500 currently running at 30 ft above sealevel in high humidity 95 degree summer days in Florida runs on 93 octane chevron pump gas mixed 40:1......39mm pwk currently has 168 main 58 that I think is a little too rich the needle is stock & in on the second position bike has fmf gold series gnarly with pc 304 silencer ngk br8eg plug does anyone have any jetting recommendations for this new radvalve setup? thanks for your time and input!
 
 

[bens87braap]

i dont have a 500 but have read lots on here and found this from Sandblaster    
Re: 01 kx 500 performance upgrades?
« Reply #10 on: Today at 09:36:50 AM »
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At sea level to 1500 ft my 3 KX500's all run perfect with a 168main 55 pilot just as Foxx4Beaver suggested.

Do a search lots on jetting here

[sandblaster]

Supermoto
PC2 pipe
Turbine Core muffler
Vforce 2 reed on high tension setting
Head squish mods and compression release
Wossner windowed piston
Balanced crank
Transfers, ports, and bridges have all been cleaned but stock port timing
41mm Keihin
55 pilot
168 main 3rd position on stock clip
92 clear gas
40:1 Motul 800
0-1500 ft

Sand bike
PC2 pipe
Turbine Core muffler
Vforce 2 reed on high tension setting
Stock carb
55 pilot
168 main 3rd position on stock clip
92 clear gas
40:1 Motul 800
0-1500 ft

[Foxx4Beaver]

58

that's a lot of pilot!...
I'd drop it to a 55 to start...but don't be surprised if you need to drop to a 52, especially if you do a lot of slow speed trails.

[saki5ridr]

Sb...slightly massaged huh ha...sounds nice!  info is appreciated not sure if I posted it in the right spot thanks Would like to see pic if u get chance..thanks

[saki5ridr]

And foxx spent few hours welding and cutting rollpin for exhaust tabs also also fabricate additional exhaust bracket out  of stainless and made new mounting bracket for egt guage broke on last ride.

[Foxx4Beaver]

cool, post a pic if you get a chance.

[saki5ridr]

I will have it all torn dwn waitn on parts right now

[Foxx4Beaver]

that's ok...we like pics of any current condition

[saki5ridr]

How unload?

[bens87braap]

How unload?

http://www.kxriders.com/forums/index.php/topic,10040.0.html

Upload Instructions

[saki5ridr]

ok I rode today  the bike was performing greatly did they plug chop at the end of my ride just to get an idea how it was running the plug was a medium to light brown not tan when I got home I pulled the plug and that is that the top of the plug where the wire connects was smashed deformed if you will have never seen anything like it any ideas I'm running a 165 main jet like you guys recommended at sea level with a rad valve and gnarly series  fmf with a pro circuit 304 93 pump gas mixed 40 to 1 pilot jet is a 52 stock needle on the third position what smashed the little piece on the top of my plug and do I need to lean it out just a little to get a tan. Plug plz help me out thanks

[sandblaster]

I wouldn't lean it out any more just to be on the safe side.
But I like to run mine a little rich for insurance.

[saki5ridr]

Why is the screw on part of my plug trashed??

[sandblaster]

Can you post a pic?