running rough

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.
farmer.boy
10+ Years
10+ Years
Cub Star
Cub Star
Posts: 66
Joined: Tue Apr 29, 2003 10:18 am
Location: Al, Huntsville

running rough

Postby farmer.boy » Tue Jun 01, 2004 5:09 pm

After rebuilding the carb last spring my cub has been running fine until a few weeks ago. It would start easy but would run rough when reved-up. It had a leaky petcock and often was low on fuel. I though maybe since it was drinking the dregs from the tank some trash got into the system. The old petcock didn't have a screen filter. Anyway I ordered a new petcock and while I was waiting on it I tuned up the electrical system with the parts I bought last year- points, condenser, rotor button and cap, plugs and wires. Afterwards it still would start easily but ran rough. When the petcock finally came I installed it and cleaned the main carb jet. I also discovered the air cleaner was dry because of a pin hole leak. Fixed that and filled it with oil per the manual. Now It is hard to start and runs even worse. I think it is running rich as I see whiffs of white smoke from the stack and it floods easily when starting. I have checked the float setting with H. L. Chavins clear tubing method and it is fine. I have tinkered with the carb setting with no success. I am thinking I need to disassemble the carb and clean it out. Am I on the right track?
Stanley

User avatar
Bigdog
Cub Pro
Cub Pro
501 Club
501 Club
Posts: 24066
Joined: Sun Feb 02, 2003 12:50 pm
Zip Code: 43113
Circle of Safety: Y
Location: OH, Circleville

Postby Bigdog » Tue Jun 01, 2004 5:27 pm

White smoke usually means water. I'd do a compression check of all cylinders or remove the radiator cap and look for bubbles in the water. Could be a bad head gasket.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

Image

http://www.cubtug.com


Return to “Farmall Cub”

Who is online

Users browsing this forum: Bbhzx12, DieselDennis, Gerry Powell, Glen, JMurphy, ricky racer, SBoySmith7033@kindle.com and 6 guests