Premix and oil injection both ok while i prove out ski?

[Texwing]

OK I am getting a little nervous on a new to me GSX with the 951 engine.
Runs great, but hard to tell how much oil its using due to leak in tank, which i am fixing now. The PO said it was very frugal on its oil use, I would rather hear it uses a lot. It has a new engine, and the only on start up do I get a sense of oil smoke and smell. I also read that changing over to premix involves pulling the engine to get rid of the oil pump.
So, the question is, is there any harm to running say, a 50 or 60:1 premix while noting its tank oil usage? we have run about three tanks through it, so it getting some, just unclear how much, and the condition of the oil lines is also an unknown.

 

[Triorieel]

Have you checked the oil adjustment notches?

I know if you go to start the seadoo full throttle without fuel, you should find oil in the cylinders and on the spark plugs.

I also know when you burn in a new engine, you are supposed to premix oil as well as use the injected, so I think you should be fine. You just might be dirtying the engine a bit.

If you question the oil lines...replace them.

 

[Texwing]

I do find oily plugs when i pull them. I will try running some premix to be safe till i can get the oil tank not leaking. Maybe carry some spare plugs. Thanks for the reply.

 

[mikidymac]

Yes, mixing 50:1 is perfectly fine as long as your ski is not DI as in Direct Injection. When the pump is set correctly they do use very little oil and that is the beauty of the system in that it varies the oil based on throttle position so it is very safe and efficient. If you have already run 3 tanks of fuel and it hasn't seized then your oil system is working fine.

 

[Texwing]

OK thanks, must be working then but due to leaky tank i can't really monitor how much oil is going through. I see new OEM oil tanks around for $103, any ideas as to wether the poor quality issues-leaks- with these tanks has been resolved?

 

[mikidymac]

No. The new ones will eventually leak too. Mine is going on 5 years now though.
If you are lucky you can find a one piece one from a 96' GSX and they will never leak and [MENTION=41828]Minnetonka4me[/MENTION] typically has one. Or you can try melting the seam like others have.

 

[mikidymac]

No. The new ones will eventually leak too. Mine is going on 5 years now though.
If you are lucky you can find a one piece one from a 96' GSX and they will never leak and [MENTION=41828]Minnetonka4me[/MENTION] typically has one. Or you can try melting the seam like others have.

 

[Texwing]

ok thanks, I woke up last night thinking i just need to go to premix and be done with all the oil injection stuff, is there a sticky or procedure for doing it, or is it as easy as removing and blocking off the pump?

 

[mikidymac]

Yes all you need is a block off kit to cap the intake oil lines and a cover plate for the oil pump.
But honestly the oil injection is so much easier and uses so much less oil. And these oil injection systems are extremely reliable. The only two issues that are easily to fix are the tank leaks and replacing the small 3/32" lines from the pump to the intake manifold.

 

[Texwing]

hi thanks, Can that pump be pulled and block off plate installed without pulling engine? I have not tried pulling that big exhaust silencer(?) that seems to be in the way of everything, it looks easy but is there any catch to it?

I know its handy to leave it in place, I may do that, there is just so many failure potentials like the cable breaking to it. I think I see the original oil lines all in place, where does this tubing come from, and is it special stuff or just standard hardware store stuff?

 

[mikidymac]

I suggest leaving it and have it on all my skis.

If the cable breaks the pump goes to max oiling by default so you might foul a plug bet the engine will be fine.
I would replace or fix the oil tank and replace the grommets on it that can leak and the oil filter.

The small 3/32" oil lines are tygon and can be found at any lawnmower shop or even some Home Depots.

Now you have eliminated the failure points. You will need to pull the carbs to do the small 3/32" oil lines but you should be doing that anyways on any "new to you" ski for a full carb rebuild in my opinion. Then enjoy the the ski for the next 20 years with peace of mind.

 

[souliog]

I always add 100:1 premix to my tank with the Oil Injection....Crazy but it could save my motor if the pump, line, or tank ever fails.

Also wanted to let you know that you will get better access to the oil tank if you take out the small "glove box" up front by the seat.

 

[Texwing]

OK great points, Its running well, but I will worry till I at least clean the carbs and especially make sure the fuel pump has new diaphrams in it (have made that mistake before). So the same tubing that might go on my weed whacker?

 

[Texwing]

I always add 100:1 premix to my tank with the Oil Injection....Crazy but it could save my motor if the pump, line, or tank ever fails.

Also wanted to let you know that you will get better access to the oil tank if you take out the small "glove box" up front by the seat.

I dont think I have any other glove box up by the seat, just the big storage compartment on the bow. So, is there some evidence that 100:1 premix would in fact provide some level of protection? I am sure it would for a reduced injection oil flow, but if a oil tube fell off one cylinder, would that maybe save it? Interesting. thanks.