White tractor blowing black smoke under strain

S

sofasurfer

Active Member
Joined
Jun 1, 2020
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64
White LT1850 lawn tractor. When straining in deep grass it starts blowing black exhaust. When not straining it does not smoke. It also runs just a tad rough and at high rpms it runs a little rougher. I see that that air filter is ready for replacement and the oil looks pretty dark. I will replace them tomorrow. Should I do the plugs also? What else may it be?
Thanks.
 
Sounds like it's running rich. Change the air filter and see if that fixes it.
 
Oil smoke usually has a bluish tint to it and shows up at any speed.
 
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