i bought a wr650lx a couple of months ago. I had to put a new fuel pump and some things that were missing but i got it running. took it to the lake and when it started to overheat i tried to get back to the dock in limp mode. in doing so i wiped out the ringsand it was so hot it melted the thermo switch. i just got done rebuilding it it now has 152lbs compression on both cylinders it is bored from 77mm to 78mm. if i run it on a hose it will run all day fine through the flush and through the hose that comes from the jet pump. if i put it in the water it will overheat within 1 minute. i had ran it on the trailer with the hose off the jet pump quick to see the pressure and it will squirt about a foot or two at idle and when u rev it it will squirt about 5 foot. checked the impeller clearences the were 12 thousands so that look good does anyone have any ideas.