heard this one yet????

[Metaldoc]

I check for vacuum leaks with a propane torch, unlit with gas just on. Start the engine and wave the torch end gas around the possible vacuum leak areas. All the intake, carb, vacuum ports, all of the intake system. If the RPM's go up in any location there is a leak. But it does sound like you're starving for gas. Any black smoke after it picks up out of the exhaust?

[stevenfromtexas]

Originally Posted by Metaldoc

I check for vacuum leaks with a propane torch, unlit with gas just on. Start the engine and wave the torch end gas around the possible vacuum leak areas. All the intake, carb, vacuum ports, all of the intake system. If the RPM's go up in any location there is a leak. But it does sound like you're starving for gas. Any black smoke after it picks up out of the exhaust?

ill try that. no sir, no black smoke.

so, i opened the carburetor up this morning and floats were dead on. i did however see that one of the gaskets was covering partially one of the vacuum holes that goes to the advance fitting that goes to the distributer. i used the other gasket that looks identical but that particular hole in the other gasket did not block the vacuum hole. drove it and not sure if its coincidence or not after a cleaning or the gasket change, it doesn't stumble/ die anymore when decelerating and/or turning......

BUT......

i still have this sucking and sputtering going on. 1, 2 and 3rd

i know i mentioned this issue around 40MPH but it is with about a quarter of the pedal pushed. the response is great if i mash on it but i'm not a "mash on it" guy. i prefer to putz around but the quarter pedal makes this guy "suck" and sputter. about half pedal its great, but that poses a problem driving down my street.....hahaha sorta don't want to run anybody over

this little 250 wants to be a big guy sooo bad...

[Steeveedee]

OK, looks like you got a vacuum advance issue corrected, but still may have a vacuum leak. Can we get a clip of what it sounds like running?

[stevenfromtexas]

Originally Posted by Steeveedee

OK, looks like you got a vacuum advance issue corrected, but still may have a vacuum leak. Can we get a clip of what it sounds like running?

i'll try. is posting a video here the same as a picture?

[stevenfromtexas]

Originally Posted by Steeveedee

OK, looks like you got a vacuum advance issue corrected, but still may have a vacuum leak. Can we get a clip of what it sounds like running?

see if this works.....

https://youtu.be/NKqNXTfXxNY

i tried the propane trick metalDoc mentioned, no dice....
i've played with the fuel/air mix....no change either

[Metaldoc]

Weak fuel pump?

[stevenfromtexas]

Originally Posted by Metaldoc

Weak fuel pump?

...even though it accelerates great? just curious

[Metaldoc]

When you accelerate you increase RPM on the pump it could be weak at low RPM. Just a thought.

[stevenfromtexas]

Originally Posted by Metaldoc

I check for vacuum leaks with a propane torch, unlit with gas just on. Start the engine and wave the torch end gas around the possible vacuum leak areas. All the intake, carb, vacuum ports, all of the intake system. If the RPM's go up in any location there is a leak. But it does sound like you're starving for gas. Any black smoke after it picks up out of the exhaust?

tried the propane trick. i couldn't hear any change in RPM