Cub will not Start

Kyrock · Mar 24, 2012

Recently took carb off and cleaned, put back together and tractor has started and ran fine, Now it will not start, it has good spark , but the carb appears to be flooding while trying to start, could the float be stuck. It has been about two months since I cleaned the carb, has been used about 15 times since

Rusty wheel · Mar 24, 2012

I think it's either stuck or plugged up with dirt. Mine is doing the same thing. Got good spark and good flow from tank to carb, but plugs are dry, and carb drips.

JRSutton · Mar 25, 2012

Were you cleaning it just to clean it, or was it giving you problems to begin with?

Not sure about the cub carbs, but floats can stick by rubbing against the side of the bowl.

Sometimes a few sharp taps on the carb, with something that's not going to break it, is all that's needed. If that works, but then it happens again, you'd want to take a look at the floats.

It's also very possible you dislodged some junk either in the fuel line, or the carb itself.
and now it's stuck in the valve.

To get the tractor started, close the gas line. Let the carb drip itself out. Give it a good 15 minutes. Then try starting again (with the gas line still closed). Once it fires up, open the gas line immediately, and it should run fine.

Sometimes just getting the gas flowing like that is enough to get it freed up. I wouldn't count on it working, but it's worth trying before pulling the carb again to clean it.

Sometimes just driving it can

Cub will not Start

Kyrock

Member

Rusty wheel

Well-known Member

JRSutton

Well-known Member

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