RESTO 95 GTI Flooding issues

[irregardless]

Night the ski last year and it ran perfect for a few days on the water. Try to start it another day and nothing- wouldn't even turn over. Get it home, charge the battery, and it shows a full charge already. Pull the plugs, hit the switch, and I'm treated to a shower of premix.

This spring I went through the carbs with mikuni kits and replaced the needle/seats hoping I had fixed the issue. I didn't.

I got it to run yesterday for about 5 minutes, turning the fuel on and off while riding (it would start to flood, turn the gas off for 5 seconds, turn it back on). As far as I know, it would still fill the cylinders on the trailer if I didn't shut the gas off.

Any ideas on what it could be? Assuming the needles aren't closing all the way... how can I adjust this?

 

[mikidymac]

Your needles and seat are leaking. I would test the carbs for leak down.

 

[irregardless]

I did a pop off test, both are popping at 31-32psi. Before the first "pop" it had a leaky needle (the plug on this cylinder was always wet) but after it had a good seal until it hit 32psi

I cleaned both jets, blew air through the orifices, and triple checked everything.

Haven't put it back together to recheck since the pop-off test.


The oiler was not set correctly and I'm not sold on it doing what it's supposed to be doing. Considering just switch it over to a premix setup and see if that helps things. (I only run it at home, so it's just a tiny hassle that I'm 100% ok with)

 

[mikidymac]

You need to put the diaphragms in and covers on then see if the carbs hold 10psi. That’s checking leak down. Completely separate from checking pop-off.

 

[irregardless]

The rear carb did hold 20 psi, (I let it sit for 3 minutes and got antsy, can check longer if needed). The front carb did not.

Have a leak here between the carb and the plate (I don't know the terms, sorry) very close to the isle adjust screw and nipple.

 

[irregardless]

So I took it apart after getting some sleep... Found some issues...

All metal surfaces were corroded, so I cleaned them up as best I could (light wire brush) and reassembled. Leak still present, but moved around the plate to another side.

Remembered that I had a cheap rebuild kit in my toolbox. Went to work cleaning, swapping gaskets, and reassembling. STILL have the leak at the same-ish location. Noticed a gasket was off after disassembly #4/5. Replaced with correct diaphragm. The clear discs had black spots on them, which I haven't seen in the past... Indicative of another issue? (Fuel lines had been replaced with black before I purchased)

I'm going off of the exploded view, but have an extra gasket that looks like it would go where I'm having my leaks. Do I need it? I assume it would go between the diaphragm and the plate and not the carb itself.

I feel like we're chasing the right thing now, at least!

 

[mikidymac]

Nope, those are the wrong parts for your carb.

Please, please, please get the correct Genuine Mikuni kit. You are spinning your wheels at this point

 

[irregardless]

Do you have a better source or recommend any of the add-ons shown?

It's the "back to oem kit"

 

[mikidymac]

I always replace the Fuel valve and strainer when I do mine. I don't bother with the SS bolt kit.

 

[irregardless]

I just noticed that he's out for 2 weeks...

Would the mikuni kits from Amazon work just as well?

 

[mikidymac]

Yes if they are genuine but they don’t include the correct springs, needles and seats, base Gaskets or selector.