Jetting problem?

[ChknLittle]

I have a 96 CR250. Love it, but it seems to be smoking alot and excessive amounts of black goo is coming out the spark arrester. I'm running a standard 32:1 mix of honda synthetic oil. I've also not been able to get it to idle at all without constant revving of the throttle. I've adjusted the pilot valve all I can with no noticable difference. It does seem to flood out easy, as I have to hold the throttle open to start it up most times. But it does always start after a few kicks, and seems to have plenty of power and is still fast. I bought the bike a few months ago and it's always been doing this so I'm still trying to fix it myself. any suggestions? thanks.

 

[Coolector]

goto www.worldofpowersports.com look under your bike parts cateloge and make sure your carb is got stock parts (Jets,needle,th.valve ect) in it . After that you may want to make sure you arn't sucking air anywhere ect carb , airfilter boots., Do you have good compression? at least 120+. Check this with throttle wide open and with a warm bike. After that it could be crank seals or reed valve but I'd check the basics first