hi, I just purchased these 2 ski's. already found out that the ltd dropped a rave valve and has a bent rod. The rx turns over and has spark. Need to check compression next. My questions are, where do you check fuel pressure on the rx? Also I want to replace or rebuild the crank in the ltd. I am capable and have 2 stroke crank rebuilding abilities, but where do i get the parts? I am a dealer for WPS and they dont show the rod kits or bearing kits in stock or even ordered. I have about a month and a half to get them running before vacation! Thanks for any help!