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Smithks

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Replaced the gas, replaced the carburator with a totally new one, replaced the spark plug and was careful to gap properly. I have gotten it to just barely start, and then it dies. Have removed to check spark plug, and there was a drop of oil that I cleaned snd then rechecked several times and there's nothing on it anymore. The new carburator has adjusting screws the old one didn't, so I don't know what their purpose is. Also checked gas cap...seems fine and not super tight. Any help would be greatly appreciated!
 
Does the carb have a primmer bulb? Try pumping it after it starts and see if that keeps it running.
No, only a screw that can be adjusted. We tried it at different depths, but that didn't help...although we don't know its purpose. The old one didn't have that. The angles are different in the 2 pictures....but maybe that helps?
 

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Where is the low oil shut down? (We did check the oil, and nothing seemed out of the ordinary.)
Thank you for your ideas!

Should be a couple wires coming out of a plug like thing (sensor) somewhere in the lower part of the engine.

My Honda 160 can be very aggravating at times - it would only take a little teeny tiny spec of dirt in the carb to stop it. Very small jet passages in there. An inline fuel filter is in my future for it. Did you flush your gas tank out? Could be some in the fuel pump too.

I think there should also be a drain screw on the bottom of the carb. That gas should run out of for a couple few seconds after you crank it over a few times.

Have you checked for spark at the plug? That would be the first thing I'd check, get that out of the equation.
 
It is a Troy-bilt. We used it a lot for a couple of years. Then it sat outside under a tarp, neglected, for several years. We did drain the gas. When we needed it again this spring, it shockingly started right up! We rolled it by hand from the back yard to the front, it started. Came back a couple days later and can't get it started again. That's why we went straight to new carburator, etc. It sat for so long.
I will test the ideas you have offered this weekend (I travel for work so out of town).
 
3 things you need for a motor to run is spark, fuel, and air. Start simple and work to more complicated. Check the air filter, check for spark by grounding the plug, try and self prime through the intake with carb cleaner spray or ether, make sure the oil level is above the safety shut off line(Usually you can ground the sensor if you need to bypass), if it has an impulse line make sure it is not cracked, check the kill switch to make sure it is functioning, make sure the fuel is not full of water. Make a list and check them off as you go.
 
No, only a screw that can be adjusted. We tried it at different depths, but that didn't help...although we don't know its purpose. The old one didn't have that. The angles are different in the 2 pictures....but maybe that helps?


That looks like a stop screw that maybe controls the idle.
If it runs at all then it's a fuel or air fuel issue. I can make a motor run without a carb on it at all. Just squirt some gas in the intake as you pull on it and it should run as long as you keep adding a little squirt of gas every few seconds.
Did you check the float bowl to see if it has gas in it?

Someone said to check the oil sensor but you said it does start. If the oil was low and the oil sensor is activated, it shouldn't start or run at all.
If it's starting but it wont stay running, That tells me you have a carb or fuel issue. I know it's new but that doesn't mean that new one is correct.
 
That looks like a stop screw that maybe controls the idle.
If it runs at all then it's a fuel or air fuel issue. I can make a motor run without a carb on it at all. Just squirt some gas in the intake as you pull on it and it should run as long as you keep adding a little squirt of gas every few seconds.
Did you check the float bowl to see if it has gas in it?

Someone said to check the oil sensor but you said it does start. If the oil was low and the oil sensor is activated, it shouldn't start or run at all.
If it's starting but it wont stay running, That tells me you have a carb or fuel issue. I know it's new but that doesn't mean that new one is correct.

I've had them where they ran for a second or two and would shut off, that's why I thought that may be it.
They seem to be fussy at times, I've had OPE come in "won't run" and t was just from nasty oil causing the low oil shutdown to work.
 
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