FDFD L622 Greve

[pday]

Question I have a 20hp industrial Tecumseh mtd mower and when the blades engage it either fowls the plug or runs ruff I cleaned the flywheel rest the gap on the coils and clean I have good spark but I just have this problem that just started and as soon as you disengage the blades it runs fine and I just went through the deck and replaced the bearings. Need some guidence

 

[bertsmobile1]

You have a carb problem.
Sounds like the main jet has fallen out, float level is too high