What's the Piddle drain?

[MikDee]

And What does it do? Does it affect the running of the motor, if so why?

 

[roscoe]

Re: What's the Piddle drain?

Believe you are referring to the excess fuel recirculation system, sometimes called a puddle valve.

Fuel moving through the crankcase leaves some fuel sitting in there.
This is how the crankcase gets lubricated.
Under certain conditions, like a cold engine, or a lot of idling, way too much fuel is left in there.
It is supposed to accumulate in the bottom, then through a series of check valves and hoses, it is drawn back to the carburetor and re-used.

If the system is clogged, the fuel builds up and causes rough idling, a rich condition, poor accelleration, etc.

 

[Frank Acampora]

Re: What's the Piddle drain?

YEP! Piddle drain is what your puppy does on your rug.

 

[MikDee]

Re: What's the Piddle drain?

Believe you are referring to the excess fuel recirculation system, sometimes called a puddle valve.

Fuel moving through the crankcase leaves some fuel sitting in there.
This is how the crankcase gets lubricated.
Under certain conditions, like a cold engine, or a lot of idling, way too much fuel is left in there.
It is supposed to accumulate in the bottom, then through a series of check valves and hoses, it is drawn back to the carburetor and re-used.

If the system is clogged, the fuel builds up and causes rough idling, a rich condition, poor accelleration, etc.

So then this might also be the reason why my motor is stalling alot whenever I try to put it in gear in the water, poor acceleration, and not reaching top rpm.

 

[roscoe]

Re: What's the Piddle drain?

Could be.
It has its most noticeable effect, on low rpm performance.