Engine trimmed 10-15 degress. Gas drip from top carb. Normal? See Photo.

[777funk]

I started the engine on earmuffs a few days ago with the engine trimmed just a hair from straight up and down (say 12 degrees) I can see it's back spitting ever so slightly from the throttle butterfly. Is this ok?

 

[tommarvin]

Yes it's ok, every time you tilt the motor to and from the ramp gas comes out too, it's scary at first to see gas all over the place, somehow it doesn't catch, fire, this is a perfect example of why we would never start a two stroke without a fire extinguisher in your other hand.
Wait until you see how much gas shoots out on a back fire.It splashes against the black backfire protectors, make sure you always put the black plastic I guess there called backfire preventers We start our 125hp at home on flush muffs, water goes in both sides of the intake before we go to the ramp.
We honestly keep a roll of toilet paper handy, to keep the gas out of the bottom of the motor.
Have a fire extinguisher in your other hand.
Replace all your fuel lines/hoses withUSCG A1-15 fuel line, it has a 2 1/2 min burn time, you can put the fire out before that right. safe boating.

 

[jerryjerry05]

No it's NOT ok. I have 6 carbs and not one spits back.
​The carb when not running might have a bit of fuel coming out when tilted..
But running and spitting, could be a reed is bad?

The reeds allow fuel in and stop it from coming back out.

Do a compression test.
Then pull the carbs and check the reeds.

And if your engine backfires?? Somethings WRONG!!!

 

[777funk]

No it doesn't back fire. And I don't actually see it spitting while running. But I can see that it's wet where you see it after a bit. It's wet at the throttle butterfly so it must be coming from the engine side of the carb.

Compression is good on all 4 cyls. Haven't checked the reeds.

 

[Jiggz]

And yes, after you run a two stroke motor, there will always be small amount of left over fuel oil mix in the crankshaft cavity. This is natural as not all air-fuel mix will enter the cylinder. This is the reason for the fuel recovery system. This is a system of fuel hoses that allows puddled fuel in the crankshaft to enter (through the intake plenum) back the carb's intake.

Now the preceding is all about a normally running engine without a misfire or backfire. If you have some kind of misfire, then you might have a reed problem allowing fuel oil mix to blowback out the carbs.