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Carb needle valve sticking

I

IOWA NORTHEAST

Member
The last while I have had two needle valves that were sticking. On on a 9N Ford, and the other on a G Allis.

The Ford was put in new four months prior to having problems, so I filed the edge of the needle valve, and worked fine.

Now the G Allis has been in for about four years, and I have sanded the sides actualy quite a bit, and it still hangs up when playing with it.

I have never had issues before, and realize quality isn't what it used to be. Both do not have the clips to pull them down, and SS tips.

Anyone else having the same problems? I did soak the G carb in Berrymans before sanding the edges dowm.
 
I even got a drill bit that I use on the seats to clean out the varnish left from ethanol.(I drill it by hand, no power tools)
 
It is the ethanol in the gas. It evaporates and what is left doesn't burn very well and is sticky. On my gas engines that I don't use very often I try to get gas without the ethanol and put "Sea Foam" gas treatment in every tank. I get about one carburetor a week that just needs the stale gas cleaned out of it. You need a good carb. cleaner too. I was using a cheap brand and if you checked the parts after they dried off they where still sticky. I use Gum out brand now and it seems to clean better.
I even had a new tiller that was used once last fall. It had the kill switch on the spark plug. So when you killed it the engine draws gas in as it spins down. That raw gas gummed up the intake valve so bad by this spring that I had to remove the head and valve to wire brush the varnish off of it. The tiller would hit once and coast to a stop. Then the valve would slowly return and it would hit once again.
I fear that in a few more years that our older gas engines are going to be hard to keep going with the gas available.
 
JD pegged it. The new ethanol gas. I have had more headaches from this stuff. Gums up everything if you let a carb sit for more then a month.
 
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