overheat now no fuel

[digthewells]

I overheated in the water, it got pretty hot now the engine won't start because it's not getting any fuel. I took the pistons out and poured a little gas in and it did fire and run until the fuel burned up...a second or two so I know it's firing, but not getting fuel now.

I'm wondering what part of the fuel system could have been damaged by the overheat?

Thanks!

 

[vilord]

No idea.

If you have a 1997, the carbs might have been damaged.
If you have a 2000, the fuel pump might not be working right.
If you have a 2006, the fuel injectors might have melted.

What kind of boat do you have? What year? We can't help much without knowing what we're looking at

 

[timmyboy76]

hey stud, like vlord mentioned before...redo your avatar w/ yr and model of ski/boat...:cheers:

 

[kustomkarl]

I overheated in the water, it got pretty hot now the engine won't start because it's not getting any fuel. I took the pistons out and poured a little gas in and it did fire and run until the fuel burned up...a second or two so I know it's firing, but not getting fuel now.

I'm wondering what part of the fuel system could have been damaged by the overheat?

Thanks!

Ok, you need to know what your talking about first, than tell us what seadoo you have with the year and add it to your avatar. I bet you get answers to your problem then.

Karl

 

[vilord]

Karl good point
If you took out the pistons and poured a little fuel in, I'm surprised it didn't blow up. Fuel's not supposed to be under there, well, ever.

Secondly, if it is an older 2-stroke boat, pouring a little fuel in can irreparably damage the pistons and cylinders when you start it... don't do that.

 

[digthewells]

Ok, first off thanks for the replies no matter how sarcastic...

Let me clarify what I did. I didn't take the pistons out and pour in fuel...typo obviously I meant plugs. I was in a hurry I was posting so I left out some key info in the post. I sprayed a tiny bit of fuel and oil into the cylinder to mimic kind of what the fuel system would do and it popped off for a second.

It's a 1991 SP with the yellow engine.

I don't post on boards very often so forgive me if I didn't do it 100% correct.

 

[Nate Surveyor]

Have you replaced the gray fuel lines, (boy, is that a mantra, or what?) If not, I'd compression check, then if still good, replace fuel lines, and clean carbs, and clean all filters...

Overheating, is usually due to:
Clogged cooling system.
Lean condition, from plugged fuel system.



N

 

[digthewells]

Thanks for the info.

I have not replaced any fuel lines. I did do compression check and it was around 120 a cylinder...not bad.

I took the head and cylinders off to look at the damage after the overheat. one of the cylinders is scored up. I am going to go ahead and bore them and put in new pistons.

I am going to do exactly what you said with the carb and filters.

Thanks!

 

[vilord]

We were getting worried about you, if you were coming back

The fuel lines are almost definately the problem. If they are gray, they must be replaced to use e-10 fuel. Since nobody sells MTBE gas anymore and its all e-10, the fuel is eating through the lines and dumping the remains in the carbs and filters.

So before you clean the carb/filters, replace the lines, otherwise you'll just clog 'em up again.

A quick search of the forum for fuel lines should yield the instructions.
Good luck, let us know how it goes!