LT1000 - Misfires and stalls out

[SeniorCitizen]

I recently replaced the carb, oil, oil filter, air filter, and spark plug on my LT1000. It is misfiring and then stalls out. Anyone have any suggestions on what to try?

Try a Champion plug .

 

[Auto Doc's]

OK - I was able to clean (for the most part) what I think is the rocker cover & attached are a couple of pics.
I think the model is - 2 followed by some strange symbol, 3H07
Type - 0399 E1
Code - 050607ZE

Fuel is not old and I use rec fuel only, so I don't think there is water in fuel. Should I go ahead and drain fuel in case there are bugs, dirt or grass clippings causing problem? I looked in tank and it appears clean. Is the fuel nipple in the bottom of fuel tank?

Need to find the product information label on the chassis of the machine to figure out how yours is built.

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[sgkent]

I would verify that the choke is working properly. Would add some fuel line drier like Heet or another brand to the fuel and drain a little fuel out of the carb, and try it again. Certainly a new genuine and not counterfeit spark plug may help. If that fails, I would definitely adjust the valves to be sure they are still in spec. They expand as they heat up so if one or more is tight, heat can cause it to expand to where an engine runs poorly or dies. Also would use the original carb after checking the bowl for corrosion since the replacement did not help. While the valves are being adjusted, retorque the heads in case they are loose and losing compression. If that helps then prepare to pull them when you have time, check for warp and address as needed. When you put the old carb back on, let a little fuel flow into a glass jar - maybe 1/2 inch and see what it looks like. Also pay attention to how fast it flows. If your engine has a fuel pump, they wear out too and that can cause problems.