I guess this is a followup - electric fuel pump

[rmaynard 16,799]

I spent the better part of the day removing and cleaning my gas tank, replacing the fuel lines, and installing the 1-3 psi electric fuel pump on the 416-H. All went well until the first test run. Engine started, but it went to full throttle with throttle lever set a idle. I had to stop and move on to another project. Having not touched anything other than the fuel delivery system, I somehow must have done something to the throttle, but I can't look at it again until 10 PM tonight. As Roseanne Roseannadana said, "it's always something".

[sqrlgtr 1,931]

1 hour ago, rmaynard said:

I spent the better part of the day removing and cleaning my gas tank, replacing the fuel lines, and installing the 1-3 psi electric fuel pump on the 416-H. All went well until the first test run. Engine started, but it went to full throttle with throttle lever set a idle. I had to stop and move on to another project. Having not touched anything other than the fuel delivery system, I somehow must have done something to the throttle, but I can't look at it again until 10 PM tonight. As Roseanne Roseannadana said, "it's always something".

Sounds like governor going wide open they will do that if you forget or  don't hook throttle cable back up. I've done it more than once .

[rmaynard 16,799]

2 hours ago, sqrlgtr said:

Sounds like governor going wide open they will do that if you forget or  don't hook throttle cable back up. I've done it more than once .

Yup, just took the air cleaner base off and found that I had somehow wedged the throttle linkage wide open. Oops. All fixed.

[My_horse 61]

Ordered a new mechanical fuel pump for my 314-8 today, and filters and new fuel line. 
 

seem to be getting only a small amount of fuel in the filter, and long cold cranking times to get it started. It’s 26 years old with original pump and lines. Not always fed ethanol free, until a few years ago. It’s probably time. 

[RED-Z06 2,704]

I put an electric pump on my deere 420 and it makes my headlights flicker, works fine, starts fine...just flashing headlights 

[Retired Wrencher 6,314]

On 1/21/2026 at 8:00 PM, rmaynard said:

Yup, just took the air cleaner base off and found that I had somehow wedged the throttle linkage wide open. Oops. All fixed.

Bob glade you found the problem. Looks like winter is here now for some of us. It’s always good to be ready. Not looking forward to possible 1 foot or more of snow coming our way. Well that’s winter.

[rmaynard 16,799]

36 minutes ago, Retired Wrencher said:

Not looking forward to possible 1 foot or more of snow coming our way. Well that’s winter.

Nor am I