Small Engine Problems? Ask an Engine Mechanic for Answers ASAP
Thank you for choosing Just Answer, my name is XXXXX XXXXX I will do my best to help you find the answer you need to resolve your problem.
Your carburetor is 100% your problem. You need to clean out your carburetor; your machine is starving for Fuel.
First turn of your fuel or pinch off the fuel line.
Turn you machine on its snout so that the handles are facing straight up in the air.
On the left side of the engine you will see the carburetor float bowl with yourmain jet in the center.This is directly under the square box that has thethrottle control and the key in it Remove this jet (the ½ inch bolt in themiddle) by unscrewing it and gently remove the bowl inspecting to see if thereis any debris inside it. Clean the bowl and spray some carb cleaner straight upand into the hole the jet was unscrewed from. (you can get away without thecarb cleaner if it is not too bad) You will also need to clean the jetthoroughly including the little hole (a bread tie wire works well for this or asimilar small wire) not just the big one (see picture) Once everything is cleanset the machine back on it's wheels and turn the fuel on allowing fuel to runthrough into a drip pan for about 10 seconds.
Stand the machine back up and reassemble. This should get you going.
Cool thanks, XXXXX XXXXX try that now and let you know soon.
I took the jet out and cleaned it with carb cleaner and a wire as you recommended and I verified the jet is clear, both holes including the very, very tiny one that you would not notice unless looking for it. I also dropped the bowl to check that and I found some "goo" like old gas that jelled up, not much but some. Cleaned and back together but the idle still goes up and down, maybe even a little more now. What should I look at next?
You are going to have to really clean out the carburetor now, maybe even rebuild it. What is the model number off your engine. Once I have this I can send you directions on how to go about this.
That goo is old gas and is probably clogging up some of the passages in your carburetor
Tecumseh model number "LH318SA". 318cc, also had "SPEC 156553G" on tag if needed.
Before you do a complete tear down I want to try one more cleaning trick. Using the link at the bottom open up picture number 2. I want you to remove this small jet (it probably has a plastic cover over it, just pry that off) Unscrew that and spray some carb cleaner into the hole and then using that small wire run it inside this little jet the same as you did on the large one. Reassemble and try it. If this does not work then you are going to have to go through all the cleaning. Make sure to pay attention to pictures numbers 13 and 14. If this fails then you will need to disassemble the entire carburetor and soak it overnight in a commercial carburetor cleaner, then rebuild it with a new carb kit. Even after all of this there is a chance the carburetor will not come clean and will need to be rebuilt. At almost $100 for the carb we need to try everything else first
Do not remove any linkages without diagramming them first
Thanks, XXXXX XXXXX let you know very soon how and if that jet cleaning worked.
Well, it's gonna be a remove and rebuild I think. Not sure if this is normal but when I was looking in the muffler while it was running I noticed it was getting cherry red inside. Indication of lean but would the exhaust port on the engine look like that normally?