Recent content by mikidymac

The oil pumps don't hold oil the check valves do. On a 580/650/720 they are on the pump outlet banjo fitting and on the 787/951 they are on the intake manifold fittings.

I think Perry Performance Group and PWC Magic are still in business. They would be worth calling for plumbing and setup advise.

How did you "lower" the pop-off? I suggest replacing the ON/OFF valve as cleaning them usually causes an air leak. IF nothing else pressure and vacuum test them for being airtight.

PWC Graphics was great but he kind of fell out of contact. Glad to see he is back at it.

You don't add oil to a 2-stroke when checking compression, as you will get false readings. The only thing that controls compression on a 2-stroke is te rings so if it is low it is the rings and/or piston and only step next is to pull the head and cylinder.

As usual AI is wrong. An oil sea could be bad and allow the engine to flood with oil but it will not cause low compression.

That is the best in the country. His rebuilds will last another 20 years.

I hope you are putting new gaskets and seals on that beast? I also think that head is on upside down. That top fitting should be to bleed air out of the head. I really wish Matt B was still around....

Check with @etemplet, he has bought a few reman cranks.

Seadoo forums has nothing to do with the Facebook group as far as I know. You will get much better maintenance and mods information here than you will from the "experts" on Facebook.

Another quality SBT engine...... Those stripes on the one cylinder are interesting. I have never seen one so uniform. That engine got hot at some point too, the pupe paint is badly burnt.

Pretty sure that the 1995 is a 657X engine and not a 720 like yours. Engine parts will not interchange.

I don't think that circuit is supposed to get 12V, it only uses the resistance of the baffle. But I am no electrical expert either, so take that for what it is worth.

So it is a 1994 but has 720 parts, that is going t be an issue.

WOW! That wiring is a total hack job. Nothing is sealed and water proof or spark proof. I would trace each wire and start over using marine wire, marine terminals and marine heat-shrink.