??? Yamaha HELP????

[neverenoughx2]

I have a 1994 250 yam txrs. when I start the motor <cold>it runs great just like the other one at about 1000 rpm . After about a minute or so the motor suddunly cut down to about 600 rpm s and starts running real rough it starts spitting out the exaust and poosible the carb. then eventually stalls. While it is running when I touch the heads the starboard head feel warm and the port side is hot so much so I cant leave my hand on the head. I also noticed a little blue liquid dripping out of top port carb ( obviously a combo of fuel and oil) but that is the only carb it happens to. the top two plugs on port side seem a little more fouled than the others I am wondering if to much oil is in fuel if so how do you check for that.

please help???

[neverenoughx2]

Cmon somebody has to have some ideas.

[jb123]

changed lp pumps within a few yrs ??
stats ?

[neverenoughx2]

I changed the thermostats. what are the lp pumps