1993 Seadoo SP, only one rear squirter woking. Is this ok?

[nomoneyz]

I picked up a 93 a few months back because my 90 sp with the yellow engine is really slow and this 93 has some aftermarket goodies, just needed a wear ring. It's still slower than my wife's stock 92.

Anyways, what actually bothers me is that her ski is squirting water out both of the holes under the rear tow hook and mine is only out of one side. I took all the lines off and blew through them and can feel air coming out.

At first start both work for a second then just the one side. I'm not sure if this is normal or not. It doesn't overheat, at least I don't think it does I ran the piss out of it the whole day last time and never heard the buzzer the motor didn't grenade. I'm going out again this weekend and just got to wondering about it.

 

[RodInEscondido]

Short answer: yes, should have flow from both.

Which line has no flow? Top of tuned pipe or top of engine?

Have you tested the overtemp/buzzer? Ground the wire that connects to the sensor on the head, buzzer should activate; buzzers are common failures and commonly replaced by buzzer/alarm found at Radio Shack.

You can test the sensor by (when wife/GF is not looking) connecting ohmmeter across it and place in water on stove with thermometer; should close at just under water boiling temp.

The fittings on the engine have metered orifices to regulate flow; these commonly get plugged by sand or other smaller pieces of junk that would normally flow thru the lines. You can hook a line to the fittings and be able to blow into them and get flow.

Common to have sand settle in the passages. Try back-flush, remember rules: engine on, water on, water off, engine off, and should not run for more than 60 seconds out of water (with or without back-flush).

If history of ski includes use in salt water, back-flush should be normal part of end-of-day maintenance. The above picture is what an engine cooling system looks like in environment of salt water and improper maintenance (720 engine).

BTW, like your collection of old skis, keep hanging around on CraigsList and you will end up with a large collection.

Good luck and always have fun.

 

[nomoneyz]

It's the one coming off the head. It will squirt at first start in water but stops and just dribbles some after that. I don't know the history of the ski, when I got it the wear ring was trashed so I swapped the pump from my parts ski in and went riding. Noticed the one rear squirter not working messed with it blowing into the lines and what not. Drove 3 hours to water so just said oh well and rode it the rest of the day.
It ran fine just slower than expected. The bearing in the pump is toast I think, it whines.
Back to the squirter though, I never did flush it out. Hull is clean without any evidence of salt water, but you never know. I'll back flush it before I go out this weekend and see what happens. I'll also test the buzzer when I get home today.
I appreciate the info, I've only just begun a couple years ago getting into this hobby. I really enjoy these old hull style skis, both because they are usually cheap and are a ton of fun to throw around in the water. My wife has even managed a few 360s on hers.

 

[nomoneyz]

Tested the buzzer and its good. Going to pull sensor and test it tomorrow. Also going to back flush it tomorrow. Got side tracked fixing leaks from the rear vents on the 90 and changing the jet pump oil on all the skis. Mine was sludge and I'll have to rebuild pump this winter, others were ok just a little low.

 

[RodInEscondido]

Sand and other crap tends to accumulate in the water jacket, then as water starts to flow it goes up and plugs things up.

Just for cheap thrills, you might at the next time in the water try removing the engine top fitting for a few seconds run to see if anything flows out of the larger hole.

The 580 engines I have checked all had an accumulation of sand in the water jacket around the cylinders and I do not know how much is removed by back-flush. Me, just being me, tend to open the top and remove the head on any new ski acquisition to check the seals and for sand; the 3 big o-rings are pretty cheap.

Where do you ride in fresh water where they allow 2-strokes? A number of reservoirs do not allow any PWC or any activity that might allow your dirty (nothing personal here) body to contact the drinking water ... but bird and animal poop is just fine. Yep, this is California.

 

[nomoneyz]

I want to tear this motor down over the winter. Trying to work a deal with a guy in bullhead city for an aftermarket head, pipe, and carb. I'll get a good look at everything then.

Is it ok to blow high pressure air through the fitting on the head? Or atleast low pressure? Just want to have it stay running for this last trip of the season for me.

We go out to parker, az and ride on the big river, ca side of the river. Water is always fantastic there. This time were doing laughiln though because rooms are really cheap.