WD-45 carb issues

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   My WD-45 runs lean, even after warming up. I put a new carb kit in, I put in new Champion sparkplugs. I found out it didn't have a thermostat in it, so I put one in, helped a little. I found out someone had the plug wires switched around, helped quite a bit. After all this it runs pretty good, but if you put any load on it sputters before it takes off, and If I try to adust the bottom adjusting needle it does nothing. I can have it all the way in or out and I seems to run the same. If I put a little choke on it runs great. Also the tractor was stuck when I got it, although not very. Any Ideas? 

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Andy NW Iowa Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 22 Feb 2011 Location: NW Iowa Points: 13	Post Options Post Reply Quote Andy NW Iowa Report Post Thanks(0) Quote Reply Topic: WD-45 carb issues Posted: 23 May 2011 at 11:09am
	My WD-45 runs lean, even after warming up. I put a new carb kit in, I put in new Champion sparkplugs. I found out it didn't have a thermostat in it, so I put one in, helped a little. I found out someone had the plug wires switched around, helped quite a bit. After all this it runs pretty good, but if you put any load on it sputters before it takes off, and If I try to adust the bottom adjusting needle it does nothing. I can have it all the way in or out and I seems to run the same. If I put a little choke on it runs great. Also the tractor was stuck when I got it, although not very. Any Ideas?

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Matt MN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Silver lake MN Points: 1491	Post Options Post Reply Quote Matt MN Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 11:39am
	Sounds like some of the "passages" inside of the carb are plugged.
	Unless your are the lead horse the scenery never changes!!

JayIN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Dec 2009 Location: SE/IN Points: 1982	Post Options Post Reply Quote JayIN Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 12:00pm
	Yeah, I bet that the passages are plugged up with specks of rust. My 45 had exactly the same symptoms a month ago when I was plowing the garden. Cleaned it out and it was ok. Acted just like yours. Unscrew the fuel line at the carb and make sure you have good fuel flow, too.
	sometimes I walk out to my shop and look around and think "Who's the idiot that owns this place?"

Dave Richards (WV) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Fairmont, WV Points: 881	Post Options Post Reply Quote Dave Richards (WV) Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 1:36pm
	Andy, Dont know which carb you have. Before you disassemble it again, take the bottom needle all the way out and look inside with a light to see it there is a jet you may have missed.

KC-WD45 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 11 Oct 2010 Location: Kansas City Points: 114	Post Options Post Reply Quote KC-WD45 Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 1:50pm
	vacuum leak probably on the manifold. Sounds like you are sucking air. Check around the intake runners at the head.

Dick L Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Edon Ohio Points: 5087	Post Options Post Reply Quote Dick L Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 1:59pm
	Sometimes when cleaning a carburetor the area behind the main jet which leads to the feeder tube in the throat gets missed. To clean that area you must remove the main jet and the feeder tube and spin with your fingers a small drill bit to scrape the crud out. A dental pick will work also. I don't have one but I think they make a small spiral brush thing that will fit in the hole. Another problem that sometimes happens when people are repairing carburetors using more than one to make one is to use a non adjustable main jet with a adjustment needle instead of a plug. Any time the needle gets close to the jet it restricts it. The main jet could also be a size smaller than needed. I have pictures of an MS carb where the non adjustable bottom was fitted with an adjustable top. A person not knowing the difference can do the switch very easy. I found several Zenith non adjustable main jet carburetors for the Allis B's and C's that had the needle in where it should have had a plug also. Most of those run fine if the needed is not turned in.

Brian G. NY Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: 12194 Points: 2246	Post Options Post Reply Quote Brian G. NY Report Post Thanks(0) Quote Reply Posted: 23 May 2011 at 4:51pm
	That tube on the main jet is VERY critical. you must remove it and clean ALL the tiny little holes. I use tip cleaners and tiny drill bits but fine piano wire or wire from a wire brush should also do the trick. Use lots of carb cleaner in the process. These old carbs are pretty simple........but when rebuilding them...."cleanliness is next to Godliness"!