k0ua
Epic Contributor
3 batteries and 2 starters later, The valve adjustment fixed my old mower.
It痴 an old L100
Model No.
917.272432
20hp Briggs and Stratton
42 deck
6 speed transaxle
It tries to start but nothing. It half rolls. Like a car with a dead battery or alternator.
I致e checked all wiring everything is good. It just rolls and dies without starting. She痴 sat 5 plus years.
OK must be a regional thing, but I have no idea what "it half rolls" means.
Does the starter spin the engine over?
Richard
No. It spins it up to top dead center, but the valves are out of adjustment and the compression is too much for the starter to roll the engine over because the compression release is not fully functional. So the term "half rolls" is fairly accurate it spins up half way but wont break over to spin again. Without compression release the starters can never roll over these engines. They are not designed to. They are on the verge of being able to with a brand new battery but the compression release is crucial to get the speed up to get the engine started.
This is precisely what’s happening.
I will try messing with the adjustments y’all replied and I appreciate it so much in advance. If I can’t get things going at this point I’ll prolly pull the trigger on something temporarily to save up and pay cash for what I really need for the property. Then me being me I’ll rip it to shreds in the winter and rework the entire thing to get it running then decide what to do with it.