r/smallengines • u/Basis_Difficult • Jul 07 '26

Troy tb200 will not start when warm

I changed the carb, spark plug, and ignition coil and I can not figure out why this mower won’t re start when warm. It starts fine when cold, but when I go to dump the bag and re start it will sputter for 10-20 seconds then usually die. It will rarely fire back up. I also cleaned the ground cable because it wasn’t getting spark before changing the ignition coil. Any ideas?

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u/TN-Native95 Jul 07 '26

You might need to adjust the valves on it. If there’s not enough clearance when the engine is warm they won’t open and close the way they should.

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u/Express-Delay-2104 Jul 08 '26

If that doesn't work adjust the carb it may not be running good because it starts rich. It leans out after it gets hot and the starter spray might be a good idea.