1995 seadoo gtx 650

[biggiescott]

I am putting my seadoo gtx back together and i'm not drawing fuel from the fuel tank. i'm not sure if I just have fuel lines routed wrong or if the in tank pump isn't working. i'm not getting any fuel to in line filter in the storage compartment. note this machine was ripped apart in pieces when I bought it I have all documentation service manual and parts manual etc but i'm having trouble reading the fuel circuit.
I added fuel to carbs from an outside source and runs great plenty of power and fuel response

 

[mikidymac]

There’s no in tank fuel pump, it’s built into the front carburetor body.

The top of the fuel tank outlets are actually labeled on the side. RET = return from the rear carb. ON = on to the fuel selector, RES= Reserve to the fuel selector and VNT = vent to outside of hull.

 

[biggiescott]

Oh ok that makes sense I think I have her purring like a 2 stroke in no time

 

[Ckrawiec]

FWIW......you did connect the carb pulse pump hose back to the engine? I was fiddling with my '96 and could not get any fuel to the carbs.....pulling my hair out until I finally noticed I didn't reconnect the vacuum hose to the engine (doh!) when I installed the carbs.

Another thing....the carbs are very sensitive and work BEST (if at all) with only genuine MIKUNI carb parts, meticulously cleaned and re-assembled properly.....see the mikidymac CARB rebuild sticky for guidance.

 

[biggiescott]

FWIW......you did connect the carb pulse pump hose back to the engine? I was fiddling with my '96 and could not get any fuel to the carbs.....pulling my hair out until I finally noticed I didn't reconnect the vacuum hose to the engine (doh!) when I installed the carbs.

Another thing....the carbs are very sensitive and work BEST (if at all) with only genuine MIKUNI carb parts, meticulously cleaned and re-assembled properly.....see the mikidymac CARB rebuild sticky for guidance.

I made the same mistake at first. I wasn’t sure what went where, but that’s connected and still no fuel. Is 5 gallons in tank enough or is that reserve range?
I’m trying to draw from an outside fuel source in a few

 

[mikidymac]

5 gallons is plenty, reserve is only a couple gallons.

 

[biggiescott]

I got her fired up I started with a jug of fuel then went to fuel in tank she runs awesome so far thank you everyone for all the valuable information I plan to stay and hopefully share my new found knowledge

 

[Ckrawiec]

Congrats.......but not to rain on your parade....these older machines like to run great on the trailers (they mock us cruelly - and they will humble you). The real test is running in the water.....if she won't perform well in the water....hesitation, bogging, etc....experience dictates that the first place to start/re-start are the carbs....they can be very persnikety.

So, good battery and clean carbs with Mikuni parts and you should be well on your way! After that...electric gremlins are usually next on the chase list . They are fun though.....I prefer the older machines personally, but labors of love!

 

[biggiescott]

Gee that doesn’t sound very promising......
I made sure the carbs were clean when I had them off. Everything look in good condition so I voted to not buy rebuild kits, but when I do it will be miikuni parts only I’ve learned that lesson from my small engine work on yard equipment lol.
They don’t seem to have much electronics that can fail.... the EPEM and the kill switch?????? No???

 

[Ckrawiec]

I don't mean to sound discouraging...on the contrary.....the older machines are certainly challenging......ALL I'm saying is be patient with them.....and Yes, there are not a lot of electric parts in them.....but generally speaking, chasing electric issues can be daunting....you have to check everything....even the smallest bit of corrosion can disrupt a wiring path and they are sometimes hard to find.....also, a static ski on the trailer always seems to behave, but once she starts bouncing around on the water...stuff happens.

I personally had my '96 GTX running top notch on the trailer, great revs, easy starts, etc......but as soon as I dropped her in the water....she bogged down.....I just couldn't understand it...it ran so well on the GD trailer. I hadn't used Mikuni parts on the first carb rebuild.....lesson learned. Swapped out the carb parts with Mikuni parts and back in business...she ran great after that. Just sayin......good luck with it.

 

[biggiescott]

I don't mean to sound discouraging...on the contrary.....the older machines are certainly challenging......ALL I'm saying is be patient with them.....and Yes, there are not a lot of electric parts in them.....but generally speaking, chasing electric issues can be daunting....you have to check everything....even the smallest bit of corrosion can disrupt a wiring path and they are sometimes hard to find.....also, a static ski on the trailer always seems to behave, but once she starts bouncing around on the water...stuff happens.

I personally had my '96 GTX running top notch on the trailer, great revs, easy starts, etc......but as soon as I dropped her in the water....she bogged down.....I just couldn't understand it...it ran so well on the GD trailer. I hadn't used Mikuni parts on the first carb rebuild.....lesson learned. Swapped out the carb parts with Mikuni parts and back in business...she ran great after that. Just sayin......good luck with it.

Ahh gotcha yes definitely wiring issues can be baffling and I’m hoping she runs flawlessly even on the water . We will find out soon enough

 

[AKnarrowback]

Be patient, you will find the problem. It might take a little while, but you will learn the machine and once you get it going they run reliable if you don't abuse them.

 

[toolcraftsman3688]

Also stuff gets clogged in the fuel selector switch/knob and won't let fuel through also, food for thought. But I love the oldies due to their so simple to work on, but people are right they will test your sanity