Craftsman mower with 7.5 Briggs OHV engine. Extreme back pressure when trying to start. Pulls cord out of your hand with extreme force. I have replaced flywheel key and opened engine. Did valves and removed piston, cleaned rings. checked cam lobes Every thing looks ok Honed cylinder also still will not start and pulls cord out of my hand. Any Ideas???
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Engine rz
- Thread starter rznjff
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Lawn Pro
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Post model xxxxxx, type xxxx, trim xx from engine as well as model number from deck.
bertsmobile1
Lawn Royalty
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Very hard to pull usually means the decompressor is not working
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Lawn Pro
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Absolutely, engine cold, need to adjust valves to specs. & then give it a try.Very hard to pull usually means the decompressor is not working