colinkris1
Member
Hi all - so getting ready to put together my two machines. Supposed to get the motors back within a couple weeks now...I bought a 1998 and a 1999 Sea-Doo GTX limited back in late February. Both machines were in need of motor rebuilds. In the interest of time I pulled them right away and shipped them out for rebuilds. The 1998 grenaded wiping out both upper and lower crankcases and split the connecting rod in half. This is both good and bad news the way I see it. To me this shows the guy was likely riding wot and pow kerplop kerplooy. This indicates it was a running ski. Now I have very good mechanical skills and intuition but these are my first skis. After shipping em out I started reading the forum here. Found both machines had old Tempo gray fuel lines with green goo. At least one had a busted oil line with all lines everywhere in seemingly poor shape. Both hulls had oil in the bottom with the grenaded 1998 being the worst. After speaking with the previous owner again I found out that the 1999 still ran but he claimed it had crank noise. It had already been replaced at some point with an SBT motor. The motor rebuilder is providing me with welded crankcases. Mine weren't worth fixing but he had a supply of ones with a small hole in either the top or bottom that they welded and ground. He assures me that they will be pressure tested. Seeing as the previous owner was willing to talk to me after the buy - I figure he isn't hiding anything. Sooo sorry for the long intro now to the meat and potatoes part. Washed out the hulls. Bought all the right stuff to swap out fuel and oil lines. Bought 2 new Sea-Doo fuel selector valves. Bought 2 new glass mat batteries. Bought mikuni kits needles and seats. Bought a pop off tester. Both have fuel and oil in the tanks. Gotta get all that out - am I better siphoning or pulling em out? Guy claims he did senders on both fuel tanks and told me I didn't have to go down that road at least. I was careful to keep all parts separate (noticed the accelerator pumps are different between the 1998 and 1999). So is it easier or better to pull the tanks and wash em out since motors are out? Question 2 - once tanks are empty and clean, lines replaced, and fuel selectors swapped out where should I go next? I bought new synthetic Sea-Doo oil for injection tanks. I bought jet pump oil so I could look at those. So I saw a post about looking at wear ring gap from intake side. What about carbon ring? Sorry for so many questions, but want to get it right first time. So I rebuilt carbs and did pop off test with original springs even though bought mikuni kits. If you were me, what would you do and in what order and is there an easy or better way to do it all? Also, when I get the motors back, do compression check and how do I pressure test crankcases? Ok 123 go! Hit me with the guru checklist! Lol
