Sun Jan 11, 2004 11:37 am
Hello I am new to cubs & this site. I just got a cub and when I picked it up it ran, in fact when I went to get it the guy had it running. I got it home and when I went to start it it started but not easily. I rebuilt the carb because it was leaking badly, lapped & adjusted the valves, put in new plugs, cap, points, wires, & condensor. It has great spark, timing is correct, plenty of compression but will not start! When I coke it I can get gas to the bottom of the carb and it will even drip there, but it will only fire. I took the plugs out and they are not wet with gas so it looks like for some reason I'm not getting enough fuel? it acts like it's starving for gas.
Any help would be appreciated.
Sun Jan 11, 2004 11:50 am
Try pulling the hose off from the air cleaner to the carb and spray a little starting fluid into the carb inlet while cranking. If it fires and wants to run, it is a fuel problem. You might want to re-trace your steps on the ignition system. Verify timing etc. - just to be sure.
Sun Jan 11, 2004 11:55 am
Thank's for joining, glad to have you aboard.
My first guess is that there is a little strainer where the fuel line comes into the carb that may be pluged and over looked when overhalling the carb, next would be the fuel bowl under the tank and third would be the tank it self. You should have a good flow of fuel from the tank to carb. takeing the line off at the carb and letting a pint or more will tell you if it's from the tank or if it's at the carb. Hope this helps "Jack"
Sun Jan 11, 2004 12:31 pm
Thanks for the fast responses, I have been through the tank and fuel sediment bowl & valve are new. I'll check the strainer in the carb & make sure I didn't get anything in there when I had it apart.
Sun Jan 11, 2004 12:37 pm
If you haven't been here yet check it out http://www.farmallcub.com/HLChauvin.htm
Sun Jan 11, 2004 3:07 pm
Also make sure the carb and manifold gaskets are sealing well.
Thu Jan 15, 2004 12:31 pm
Thanks for all of the advise, I back tracked and started going over everything I had worked on and found a few problems. Now it fires right up and runs great.
Thu Jan 15, 2004 2:29 pm
Had those spark plug wires messed up, right? Been there, done that, got the Tee shirt. Just a guess.
Thu Jan 15, 2004 3:34 pm
Float level was wayyyyyy off. Someone had put a 12 Volt coil on it also.
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