Craftsman Mower ....46 2012...hard to start

banjoman09 · Mar 1, 2018

I have not been on this forum...I assume garden tractor mowers are appropriate? I there a Briggs and Stratton mechanic on this
site....Im not familiar with the newer engines.

banjoman09 · Mar 2, 2018

Briggs and Stratton 21.0 ...540cc.... hard to start when cranking. New battery...adjusted valves(not sure what it is) I think .004...still doing it. I think something in the mower is bad on the compression release.

T.R.K. · Mar 2, 2018

Single cylinder engine?
I'm guessing it turns part way around and stalls on compression stroke.

If you are certain your valves are adjusted to .004, and you adjusted them with the piston about 1/4" down the cylinder after TDC on the power stroke, and you still have this problem, then the only way to verify a bad compression release is to remove the sump and look. It does happen.

banjoman09 · Mar 3, 2018

ok....thanks...Im sure that must be it. Ill check it out!

tractorguy2 · Mar 3, 2018

You can do a compression check. If it has 100 pounds the decompression isn't working.

Southern Ray · Mar 3, 2018

Check your starter.
You said the mower is six years old. That's a lot of cranking for a starter.
If the bushings are bad, especially at the commutator end, the starter will drag.

banjoman09 · Mar 3, 2018

ok...thanks...I will do that. Im sure the cam is bad now.

Craftsman Mower ....46 2012...hard to start

banjoman09

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