I hope ya'll can help me. Here is what happened. We went out a couple of weeks ago and all was good, after about 4 hours on the trail, stop and go. We came out of the woods onto a road and when i hit the throttle the bike bogged down like it was out of fuel and then died. The tank was full of fuel still. It cranked right back up (choked) and will idle fine but when you try and throttle it up it dies. I can choke it and it will run just a little, in order to get it back to the truck i had to flutter the choke on and off. After we got home I took the seat off and you can watch the fuel filter fill up with fuel then when you throttle it up it will die as soon as the filter empties. If you take the fuel line off of the carb fuel will run freely from the tank. I did take the carb off and clean it, but it was really clean to begin with. Help, I want to ride this weekend and cant. It has a mikuni carb and a bunch of either vent or vacuum lines coming off and going to various places...maybe one of those has come off. After I reattached the carb I (with the bike at and idle) sprayed carb cleaner around my connections with no effect....thought i might have an air leak. nothing. it's like the fuel pump has quit...but it doesn't have a fuel pump...does it?

 

did you try running it without the fuel filter? taking the fuel tank off and dumping the gas in a drain pan to see if you've got something in there that shouldn't be.any kinked fuel hoses? try looking at the jets again. do a compression test?

 

Take the gas cap off and try it.If it runs right the vent line is plugged.
Still does it clean the carb

 

I don't know what I did to fix it, but it works! Last night I took the cover off of the ETC, just above the throttle lever. It looked like it had a little corosion on it so I cleaned the cover with carb cleaner, and wiped down the inside of that little box. I also had a couple of the vent lines from the carb that needed somewhere to go...i routed them through a little hole above where the fuel tank bolts to the frame. I also blew through the vent tube connected to the top of the carb while it was at idle...fuel came out of the little one way check valve running off of the bottom of the carb. All I know is that it is running pretty good now....I now need a clutch cover. the clutch has rubbed a hole through the cover...I bought this bike off of craigs list last year and it has been great up until now...I think the previous owner jimmy rigged a few things and now they are showing up for me to deal with.