95' Gas in oil over winter. Now its blowing smoke. Time to move on?

I have a 95' with only 16k miles on it. At the end of last season my Reg/Rec went out again(2nd time) and I finally sprung for the FH020AA mosfet. Around the same time the fuel pump started leaking out the side (related?). I replaced it with an aftermarket one from highflowfuel(possibly faulty?).

Fast forward to a week ago when a nice day shows up and I try and wake the bike from its winter slumber. It seems like the starter is having a harder time than usual and when the bike does fire it almost immediately bogs down. Seems flooded, I open the throttle and try and start clear it. The bike roars to life and then almost immediately bogs and dies blowing a cloud of oily smoke out the exhaust when it does. Uh Oh!

I pull the tank and the carbs to find there's gas sitting in the intake manifold above the valves. At some point over the winter season gas must have been running though the carbs, past the floats and filling any cylinders where the valves weren't fully closed. I pull the plugs and try and let the engine air out. I check the oil and sure enough a stream of oil-gas spews out of the check hole. UGGHH.

I replace all the valve floats in the carbs and decide to flush out the crankcase by doing 3 oil changes back to back, changing the filter twice in the process and running the bike for 10-15 in-between changes. When starting it, I notice it's now back to running normally but is still blowing blue smoke out the exhaust. Hoping it's just burning excess oil-gas out of the cylinders/exhaust, I go on maybe a 30-40 min ride hoping to clear everything out. But, I am sad to say it was still smoking at the end of that.

It seems run fine and have plenty of power and at lower rpms/idling it seem to be fine. But, when accelerating under load it starts blowing more clouds than a kid at a Skrillex concert.

So... What do you guys think?

Is there any chance its just burning off excess oil in the exhaust? (not likely I think)
Are my rings likely shot in those cylinders and are going to have to be replaced?
Or, is it possible that the rings might re-seat themselves with a little riding? (it seems to be running fine besides the smoking.)
Is my fuel pump likely faulty? (I'm no expert but I assumed gas shouldn't keep flowing through when the engines off.)
And do I really wanna keep working on this thing? (I love this bike! But, I'm going though some shit right now and really don't have time to pull the whole top end.)

Anyway, let me know your thoughts! I needed some venting/clarity.

 

Did you adjust the float levels after replace the float valves?

 

keep checking for wet fuel in the airbox. inspect plugs to check for good color, so maybe you can locate a problem to one cylinder

 

The float levels aren't designed to be adjusted, but i did check them and they seemed fine. I will continue to check plugs but I'm not sure I can really ride it much as my commute is mostly feeway and I I'm not sure I can be the guy spewing smoke into the vehicles behind me.

 

For clarity, did you replace the floats, or the float valves? I've run into a float that was filled with gas and no longer able to float, but I think that would be unlikely. Valves that will not close, on the other hand, is likely after messing with the pump. You may have stirred up some sediment in the gas, and some of that could keep the valve in the carbs from sealing when closed.

If it was a two stroke engine I would suspect the fuel pump, because many of those are vacuum operated, and the fuel could leak through a cracked diaphram inside the pump. The '95 doesn't have that kind of pump, does it?

The blue smoke may be residual unburned gas in your exhaust system. If so it will go away.

 

Replaced the float valves. None of the floats appeared to be busted or full of gas.

I'm hoping that the gas is just the un-burnt gas-oil in the exhaust system as well but, I'm sadly feeling that because it seems to get worse under load it's probably blowby getting around the rings.

 

so make a compression test

 

I second the motion. check the compression before you give up on it.

 

I somehow doubt that you did any major damage to your engine on startup. I also doubt that there is anything wrong with your rings. From the sound of it you barely had it running, certainly not long enough to damage the bores. The fact you say it runs well apart from the smoke attests to that. No bent valves.

It sounds like it’s definately running too rich. Years ago a friend had a yzf750 that was running very rich. When warm it would smoke constantly. He rode it like that for ages, and it never harmed the rings.

 

I had an issue on my 93 a few months ago, I replaced float needles with seats, I fouled out a cylinder filling up at a gas station. I got home and discovered that my bike was not running on four cylinders. Now, my memory is sketchy - I can tell you this though, I took the spark plugs out and used a socket on the end of the crank and turned it over by hand and had gas blow out of my front right cylinder, (#3?.)

I ended up replacing the fuel tubes with custom made ones with new associated o-rings. Bike runs great, no smoking etc. I ended up changing spark plugs and going back to a standard dino oil for a few hundred miles, then went back to my Amsoil. I lost money because I just did a synthetic oil change and had fairly new spark plugs in her. But WTF, its only money and you can't take it with you, so happy ending to the story. Bike goes 150 as it should and goes all the way up to 11,000 RPM even if its for a nano second or so. Peace and good luck