Gas tank size

[Porter brewer]

I have a 1995 seadoo gtx that the motor has blown up in from oil starvation so after putting the new motor in we installed the oil block off kit to run premix I am wondering what size gas tank my ski has and what ratio should I mix the premix. From what I have seen 40/1 seems to be the best. Thanks

 

[mikidymac]

Premix is a pain on these and will use a lot more oil too.
I encourage you to go back to oil injection. The only thing that fails is the small 3/32" oil lines from the pump to the intake but they typically last 20 years so it isn't a big maintenance thing. Alos, you have to keep oil in the rotary valve so you still have to use oil for that.

Your tank is 12 gallons.

 

[Porter brewer]

Well the motor is in and the pump wasn’t what failed and the lines where good but sbt where we bought the motor from said to premix it since if the oil pump failes the motor blows but now there is no way for it to starve

 

[Frige]

Pumps are the best way to go. They really are very reliable. Plus they vary the injection of oil compared to mixing it. You use way more oil mixing it and lose performance.