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Feels like my tractor is only at half the power

1136 Views 13 Replies 8 Participants Last post by  markusedma
I just changed out my cylinder head and rods. I cut grass for about 1 hr and now it seems like I'm only getting half the power. I took off valve covers on both sides and all looks ok. 1 spark plug was dry and jet black with soot the other was damp and gray looking. I have a Briggs & Stratton 24 hp els725 ohm engine. Muffler sounds a little muffled too. Engine sounds weak not like when running good. Any ideas.
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Are you sure it's running on both cylinders? Remove and ground one spark plug wire, and start the motor. If it runs try again with the other side.
Maybe it's the way I said it... The concept I was trying to get across is to run the engine on one cylinder at a time. Even with spark one cylinder may not be working.
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