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95 seadoo xp 717 fuel problems?

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Fyi you guys are awesome about replying thanks a million. I really want to get these two up and running before summer ends here in Washington state I get about 3 days of summer lol hopefully I will have all the parts and get everything done by Saturday. So I can have some answers for everyone.
 
Yes but there's a huge difference between rich and lean. The 2-stroke speaks to you, just listen (carefully). If lean, it will constantly stop running (Must be restarted) and if rich will keep running just won't make power. Pulling the choke if already rich adds more fuel and makes it richer.

See rich (choke induced) 4-stroking, listen for the miss every other compression stroke:

A small amount (hints) of occasional (not constant) 4-stroking is normal and we actually want to hear some of that as a sign we're not too lean. The reason is, this way we know we're not roasting a piston.

But if we're pig rich, we give up a lot of power for no gain.
 
Scottmoon92 said:
I will perform a leak test on it just to rule it out for sure



The seats were new I put them in I had to use the old o-rings due to the new ones were to big but they felt like they made a proper seal.
I agree with running out of fuel but I also imagine she wouldn't just pick right back up after falling to idle and not even dieing such a strange occurence.
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It helps if you oil the o-rings, they slip in easier. I oil about everything including the screw threads so they don't gall.
 
Sportster-2001-951C-Stock said:
And if the o-ring seal around the metering seat is leaking, it will show up on your pop pressure test as a bleed off.
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It did bleed off a little but not bad I would say a usual amount after watching many videos. I build old school cafe racers so I know my way around a carb just not one of these strange ones hahaha
That video was very helpful, I never work on two strokes so it was nice to learn about 4 stroking. I do believe that was my initial problem when she would run great for 20 minutes then drop idle down to about 6k and wouldn't pick back up. I had to let it rest for 15 min then she would be good again for 20. After trouble shooting it got to the point it's at now. Could I be over oiling it with premix and a kinda working oiler?
 
If there's too much oil there will be a noticeable cloud and every time I've ridden a ski that had too much oil my hair stunk afterward. My Seadoos with just the injection oiling never produced a noticeable blue cloud, only could see it if the light was just right.
 
Scottmoon92 said:
The ones I got were just to big. it was hell trying even with oil, but again they were some aftermarket ones I ordered everything from osd this time
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I guess someone could've swapped the o-rings or if they were mikuni knock-offs they might come with the wrong o-rings. The o-rings are included with the seats I get.
 
Sportster-2001-951C-Stock said:
I guess someone could've swapped the o-rings or if they were mikuni knock-offs they might come with the wrong o-rings. The o-rings are included with the seats I get.
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These guys both have some blue clouds but from what I have learned about two strokes better be oil rich then not. I dont trust the make shift fixes on the lines so I will live with some blue smoke until I fix them. I just want to make sure it's not the cause to my problem. Also I'm running gas station two stroke oil I have seen many posts on what oil to use could this also be a cause for concern I'm running lean on the oil 50/1 just so it's not to bad with the oiler involved
 
My feeling is it isn't from too much oil unless maybe you're making a pretty dang thick cloud. Your pre-mix doesn't need to be any richer than 40:1 to keep these happy without injection. So if you're at 32:1 on the premix it;s more than you need.

If you're running oil for air-cooled 2-stroke it's fine. If you're running oil for an outboard, you don't want that in your injection b/c you'll have to clean it all out before putting the right stuff in.

The outborad TCW-3 is for low temp motors, the Rotax runs hot like an air-cooled motor.
 
Sportster-2001-951C-Stock said:
My feeling is it isn't from too much oil unless maybe you're making a pretty dang thick cloud. Your pre-mix doesn't need to be any richer than 40:1 to keep these happy without injection. So if you're at 32:1 on the premix it;s more than you need.
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Yea the cloud isn't that bad at all maybe my oiler isn't working that well at all I haven't dug into it to much due to the ski not running well enough to worrie about it. I just wanted to make sure I didn't run without any oil
 
Sounds good for now. FWIW, the injection doesn't flow oil at low speed like idle, just relies on the puddle of oil that's normally in the crankcase. So if you putt around long enough, it can eventually run out of oil but it takes a long while and unlikely to happen.
 
While I'm waiting for parts I have another issue to ask about one of my skis will act like its hitting a brick wall and bog down when ever it cavitates. If you barely jump a wave it does it and if you turn hard and get the prop out of the water it will bog hard. It wont high rev like every other seadoo just drop and a second later will pick back up just fine. Any ideas?
 
Is it rich 4-stroking or lean hesitating? Always my 1st suspicion is lean hesitating. If they fall on their face lean, they tend to quit running and must be restarted or you have to carefully feather the throttle to coax them to continue running. Choke can help

If rich, holding the throttle open most of the way helps them clear out and they won't tend to stop running b/c there's still fuel there, just so much it doesn't fire every compression stroke. Choke makes it worse.
 
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It happens fast almost like you pulled the emergency cord. And then you can hit the gas and keep going it wont even slow all the way down. It has done this from the beginning and only does it when the load is taking off the ski. IE when jumped
 
It might be loading up on fuel a little. If it hits rev limit the CDI is not firing the plugs thus the fuel isn't being consumed.

Check the HS mix settings and toss in a new set of metering needle/seats in case they're bouncing from vibration and not settling down right away. Oversize seat orifice will leak more than correct one from vibration, make sure it's correct and pop is good.
 
Sportster-2001-951C-Stock said:
It might be loading up on fuel a little. If it hits rev limit the CDI is not firing the plugs thus the fuel isn't being consumed.

Check the HS mix settings and toss in a new set of metering needle/seats in case they're bouncing from vibration and not settling down right away. Oversize seat orifice will leak more than correct one from vibration, make sure it's correct and pop is good.
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Ok sounds like a plan thanks again
 
The yellow wires create AC voltage due the the spinning magnet. Your ski runs on DC voltage. So the 3 yellow wires are for the coils in the magnito, the red is the positive after the regulator converts the AC to DC voltage and the black is the ground. If you interrupt them no voltage getting out.

The issue is when the regulator goes out it sends AC voltage to the computer that makes it do all kinds of crazy thing since it needs DC voltage. Easiest is just to pull the red wire so the ski is just running off the battery and no AC voltage can get through.
 
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