I have a 760 in my lightweight x2 and i just cant seem to get it running right. At the end of last season it was not right. It sounded funny and the the water was not coming out of the pisser right and it ran like crap. I took the head off and one of the dome orings was broke. i did not have a new one so i glued the old one back together and the ski ran awesome for about a minute until the oring broke again. I got new ones and put them in but when I rode it it ran as if one was broke again but they are all good. I checked my reeds and they are good. What else can this possibly be? thanks