Maintenance & Technical > KX500 Original
Powerband too short
Foxx4Beaver:
160mains...my bike would meltdown in minutes if I threw in one of those...then again,I'm running a few mods....and with Gage running an 88mm bore...I'm skeptical about it being able to survive on a smaller main...I went to an 87mm bore and that forced me to fatten up my jetting.
It's better to see him start off a little on the richer side and work down...than start off too lean and have an expensive preventable meltdown....USMC 500 can verify what happens when running too small of a main....no offense USMC.
Gage:
Took the head off today going to mail it tomorrow to Pinsonnault Racing, having the head resurfaced and cut to fit 88MM. I'm going to order this http://www.ebay.com/itm/COMETIC-TOP-END-GASKET-KIT-88MM-KAWASAKI-KX-500-91-04-/330759879969?pt=Motorcycles_Parts_Accessories&hash=item4d02d33d21&vxp=mtr and this http://www.ebay.com/itm/KEIHIN-CARBURETOR-SIZE-55-SLOW-JET-FOR-PJ-PWK-PWM-/290529527013?hash=item43a4e8c4e5&vxp=mtr. I have a 70,75,80,85 mains. Think I'm good?
Foxx4Beaver:
start with the 175main....do a WOT chop run,then check the plug color,and adjust from there.
Pay attention to how it runs at slow speeds with the 55pilot...if it feels/sounds blubbery or like it's loading up,then you'll need to drop one more size.
alward25:
Pinsonault might be able to get you a good price on the gaskets too. They sell them with their kits.
Gage:
--- Quote from: alward25 on July 12, 2013, 04:02:01 AM ---Pinsonault might be able to get you a good price on the gaskets too. They sell them with their kits.
--- End quote ---
Ill ask about them thanks
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