1995 Seadoo Gtx Fuel System Questions

[1986toyotapickup]

Lost interest in fixing up my 1995 GTX last year, but now I'm back at it with better mechanical skills and knowledge. Here's the questions I have regarding the fuel system. To convert to premix, I need to buy a block off plate, remove nylon gear, keep the oil lines to the crankcase, correct? Replacing all grey fuel lines is a must, what size hose do I need? What carb kits do I need? 657x. Anything I missed? Thank you guys!

 

[mikidymac]

No reason to go premix. Keep the oil injection. The only maintenance the oil system needs is ATP-TC oil, an inline oil filter and new 3/32" Tygon lines from the pump to the intake manifold. It will be cheaper than all the extra oil you will use going premix.

Easiest place for Genuine carb and oil injection parts is OSD seadoo.

 

[1986toyotapickup]

Problem is, previous owner tried to convert it to premix by removing the oil injection cable. How hard is it to replace and calibrate, or am i better just going to premix.

No reason to go premix. Keep the oil injection. The only maintenance the oil system needs is ATP-TC oil, an inline oil filter and new 3/32" Tygon lines from the pump to the intake manifold. It will be cheaper than all the extra oil you will use going premix.

Easiest place for Genuine carb and oil injection parts is OSD seadoo.

 

[mikidymac]

If you can get the cable it is easy. You just line up the marks on the pump arm and body with the nut on the cable.

 

[1986toyotapickup]

If you can get the cable it is easy. You just line up the marks on the pump arm and body with the nut on the cable.

Alright, I went to attempt and start it with gas down the carbs, good spark, nothing. It ran for 1 second, then never fired back up after that. Is this turning into too much of a problem for a beginner?

 

[burtshaver2021]

Definitely not to much for a beginner, most likely a carb rebuild with genuine mikuni kit from OSD marine following mikidymacs carb rebuild thread will have you on the water

 

[1986toyotapickup]

Definitely not to much for a beginner, most likely a carb rebuild with genuine mikuni kit from OSD marine following mikidymacs carb rebuild thread will have you on the water

So what your saying is, even though I'm pouring fuel down the carb, and its not starting, its a carb issue? Healthy spark and battery.

 

[mikidymac]

Test the compression. Do not use a Harbor Freight tester.
Use a thread in tester with a schrader valve in the sparkplug side of the hose.
Good battery, sparkplug cables grounded on the orange lugs, Fuel off, throttle wide open and crank until the needle stops climbing.
150 psi is perfect and at 120 it is shot.

 

[burtshaver2021]

So what your saying is, even though I'm pouring fuel down the carb, and its not starting, its a carb issue? Healthy spark and battery.

Sorry, I thought you had said with gas down the plug holes it ran for a second. If it’s not starting with mixed fuel poured in, then I would look elsewhere first. Compression, spark are good?