02 kx 250 top end?

[norcalweaz]

i have a 2002 kx 250 and yesterday fouled a plug. cleaned it and it fired up for a second but bogged out and wouldnt start. took it out and it had oil on it again. cleaned it and it would start for a second again but bog out. oil on it again. is my top end gone? or are there other things that would help this problem. im in the dark here. any help would be much appriciated.

[socket17]

check your mixture maybe to much oil. also did the temp change alot that could be throwin off the jetting.

[norcalweaz]

my mix was 32:1 and the temp was consistant

[FPMXer]

Did this just start or it's just getting worse? Is the air filter clean and fresh? Do you leave the fuel on when the bike is sitting? Does the petcock turn the fuel off? Is the carb clean and the needle and seat in good shape? A dirty and clogged filter will not allow enough air to mix with the fuel charge causing a rich condition and eat plugs. I clean and change my air filters every other ride. A faulty fuel system will allow gravity to pull fuel and load the bottom end of the motor and cause excess fuel to sit in the bottom end until you rev the shit out of it cleaning the fuel out. This is what I would do to the bike.

Clean and replace the air filter with another one, clean and inspect carb innards, check petcock shut off while carb is off and if it still flows fix and or replace it, remove spark plug and kick engine over about 20 times to clear out some of the fuel (not all of it will come out until it's running) and then after everything is done start it up. If it runs it should sound a little choked out and then just rev it or ride the snot out of it and it will clear out.

[climb any hill]

I'm moving this over to the Kawi Forum.

[Yamaboy1983]

did you check your compression?

[norcalweaz]

compression seemed fine. havnt cleaned the carb and air filter yet. long day at work but will do all that 2morrow and post how it went. im hoping it goes fine. im still getting used to this 2 stroke stuff. but damn i love the power when all goes well. thanks a lot everyone.

[norcalweaz]

cleaned out the carb, air filter, emptied and refilled gas tank, crank the old shit out, and put in a new spark plug and its back to runnin tits. thanks a lot guys hopefully il keep it runnin good this time. rookie luck isnt something i have. peace