Hi, was hoping you could help or point me in the right direction. I have a
coleman powermate 6250w generator that has been sitting in a box for about 4
years, no gas or old was ever put in. Today, we go to fire it up, fill it
with oil and fuel, bit it will not start. The plug is new and when holding
near the block, we can see spark plus it has plenty of compression. It
sounds like it wants to catch, but it won't. Fuel valve is on and I can
smell gas like it is getting flooded. Any suggestions or anything we might
have missed? Thanks!
It has both a fuel shut-off valve (which must be turned) AND an electrical
switch that you have to flip.
The switch on mine is close to the fuel shut-off valve.
In your case, I suspect the switch is the culprit.
Thanks both. Neighbor came over and said something about fuel inlet in the
carb has crystallized or something from non-use. Left over gas from the
manufacturer test. He sprayed a little carb cleaner in the choke and it
fired right up. Only weird now is it runs great, but won't run if the choke
is turn from choke to run. I conks out.
Liberal use of carb cleaner will help, also, if you run it with some
carb cleaner in the gasoline for a while that will also soften up the
clog. Just keep running it with the choke closed, and gradually open
the choke, every 5 or 10 minutes, until it will run with the choke
Be sure to use Stabil in the gasoline when you put the generator
away, and either keep the gas tank filled and use Stabil, or run it
until the gasoline runs out. If you do the latter, as the gasoline
gets low you will need to start closing the choke until it is fully
closed and the generator stops. That way you have drained enough
gasoline out of the system that it should not clog again. But, you
must be sure that all gasoline is gone from the tank. If there are
some irregularities in the bottom of the gas tank, even after it stops
running, If you should accidently move the generator, some of that
gas can get into the carburetor and clog it. So, as it gets low on
gas, move the generator around a bit to get ALL of the gas out of the
tank and into the carburetor.
It should not be clogged, He DID say that it was new in the box with NO
OIL AND NO GAS in it. How the hell can it be clogged? Malfunctioning
maybe. Defective possible. People should learn how to read before
Doesn't really matter what you doubt; that is the case. They are
pre-run before shipment by hooking a line up to the carb's fuel input,
started, and allowed to run a few seconds, not enough to empty the bowl,
All you have to do is check on ANY freshly delivered item with a gas
powered engine. I even had one lawn tractor that actually started while
I was testing the battery connections of the battery I'd just put in. I
figured I'd turn it over a couple times to be sure hte battery was up to
charge, and it started. Ran for about half a minute or so, too, long's
the choke was kept on. Never thought to try that before that one
though. Most won't start because the gas is evaporated & floating
around in the air, I presume, in the lines & bowl. But it's there if
you look; pull the bowl off next time and give it a look-see.
I wouldn't suggest that for just anyone but I know you know
everything there is to know about such things so you can do it without
problems or ruining the gasket.
Another possibility is the oil level. Fill the crankcase until the oil
runs over, then cap it. In my experience, newer generators have a VERY
sensitive low-oil sensor. Mine looked full, but wouldn't start until I
completely filled it....
Many say to fill it completely, there is a fill hole and it is
supposed to be to the the top of the fill hole. I have several pieces
of power equipment including a generator with that requirement.
Overfilling these is impossible, they are designed to be idiot proof
and don't even have dipsticks.
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