Cub dies at higher rpm

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
bricemosher
Posts: 1
Joined: Mon Mar 26, 2018 12:48 pm
Zip Code: 00000

Cub dies at higher rpm

Postby bricemosher » Sat Feb 09, 2019 7:58 pm

Hey Gang, I am new to the forum and also quite new to Cubs. I have a '47 cub, I bought it last winter and used it almost daily thru the summer with no problems. In the fall it began to have issues when running at near full throttle, it would spit and sputter and eventually stall if the throttle was not backed off. I have changed points, condenser, rotor, plugs and replaced the carburetor with a new one. Timing has been checked, The tank has been inspected, the fuel line replaced, and sediment bowl /shut off unit was removed from tank and has been thoroughly cleaned. After all this it is still having the same issue. Can someone please give me any clues on what to check next? I was debating on changing the coil,
but it does start right up and idle fine... Thanks in advance.

User avatar
Bill V in Md
10+ Years
10+ Years
Posts: 749
Joined: Sun Feb 02, 2003 6:51 pm
Zip Code: 21228
Tractors Owned: 1948 Farmall Cub
LT1045 Cub Cadet
Circle of Safety: Y
Location: MD, Catonsville

Re: Cub dies at higher rpm

Postby Bill V in Md » Sat Feb 09, 2019 9:36 pm

You might get more responses if you repost this question in the Farmall Cub Forum.

I would check the air cleaner. Not sure of your location, but I wonder if there could be some moisture in the fuel that could be freezing.
Bill VanHooser
Circle of Safety

Bob McCarty
Team Cub
Team Cub
Posts: 9605
Joined: Tue May 25, 2004 8:02 pm
Zip Code: 80501
Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
Circle of Safety: Y
Location: CO, Longmont

Re: Cub dies at higher rpm

Postby Bob McCarty » Sat Feb 09, 2019 9:59 pm

Do you check the float level (height and drop) on the new carb? Also, did you adjust the carb to governor linkage when you put on the new carb? And welcome to the Forum.
"We don't need to think more,
we need to think differently."
-Albert Einstein

User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
Posts: 23245
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Re: Cub dies at higher rpm

Postby John *.?-!.* cub owner » Sat Feb 09, 2019 11:11 pm

Remove the p0lug from the bottom of the carb and drain dirty gasoline out of it.
If you are not part of the solution,
you are part of the problem!!!


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall Cub”

Who is online

Users browsing this forum: Gary Dotson, raystractors, T-Mo and 3 guests