WD-45 stalling under load

My WD-45 stalls under any kind of load. It started last week, the float seamed to be stuck because I had gas running out of the carb when the tractor was shut off. After that it ran poorly. Today I put a new load valve in it just because I had it . The carb was rebuilt last year and seemed to be fine. Now it starts up and you have to play with the choke to keep it running when you put any kind of load on it. I pulled the carb and split it and found no junk but when I switched load valves the old one had some junk in it. You can turn the valve way out and it doesn't seem to matter on how it runs. I opened the shut off after I removed the carb and got a very good gas flow. It will run then starts to stall, play with choke and it runs better for a short time. It was single digits today in Wis. Any help would be appreciated. Sorry about the length of this message. Mike

Boy I wish mine will be that easy!

I have not blown it out yet but I have it in the back of my truck intending to do so.

I rebuilt a carb once where I messed up and had the float rubbing the inside of the carb and getting stuck like the carb was full but it wasn't. Bent it the right way and away she went.

My 45 seems to take on water through condensation or somthing. When it does it runs just like yours. Every time I start it after sitting I drain the sediment bowl and let some gas run through and it seems to run good. I do think you may have a clog in the carb.

Myron, If he needs the choke to keep it going that would indicate a vacuum leak or a lean condition. A plugged air cleaner will most likely choke the tractor on its own causing a rich condition.

I would think just the opposite; a plugged air cleaner would act like a choke by cutting off the air intake. Are you getting a good flow of gas to the carb? My 45 ran like that one spring after sitting all winter. I took the carb apart and cleaned it but it still did not run right. Took it apart (completely) the second time and cleaned every single orifice I could find with carb cleaner, tip cleaners and compressed air. Worked after that. 

Lots of carburetors have a filter screen part of the inlet adapter that gets plugged with varnish to starve the engine. I saw one that I couldn't detect air from the 60 psi in my air tank getting through. It would only idle for a minute or two then quit. Its in a place not often cleaned until you've had that problem.

Gerald J.

You need to check gas flow through the carb out the drain plug in the bottom.

I had a fly manage to make it all the way to the back side of the float valve once. On my CA I was constantly having to fool with the carb, pull it apart to blow out debris. It had a new sediment bowl. What I found was deposits from bad fuel in the steel line were being loosened by the vibrations of the engine and clogging the carb. I fabbed up a new line and haven't had any carb problems since.

I had that problem on my D14.  After many hours, I was removing the carb . . . yet again, when I noticed something on the threads of teh gas line.  I looked carefully, and where the gas line connects there is a small compartment.  Inside there was what appeard to be a piece of red flannel shirt.  Been running great ever since!

Hello MDM1    Here's the skinny!!  1     Need coffee can etc, 1/2" &11/16" wrenches,  teflon tape,  3/8" pipe plug,   PIECE OF FINE SCREEN rolled to look like a cigarette.      Remove fuel line at sediment bowl, remove sediment bowl assy with can in place to catch fuel, install 3/8" pipe plug,  now clean inlet of sediment assy etc,   install screen in top of sediment assy, add teflon tape and reinstall.   Any drit etc laying  near the hole should flush out.  Pour the good fuel back in tank     Check the tank AFTER IT WARMS UP .

Just thought! Our airless paint sprayers have screen filters. Just found my screen.