Lawn Mower Fan
Join Date: Jun 2006
Location: Fayetteville, NC
Re: testing the coil / shut off switch on 10301
The switch is probably a NO switch, or Normally Open. Meaning, when the bail is released, the switch opens, probably breaking connectivity in the ignition system. I may be speaking out of turn as I don't know the particulars of the Lawn-Boy ignition system, but in general, that's how most of the compliance brake systems work.
You should be able to use your ohm meter to test the switch. With the bail tied down (as you would operate it), I would expect the switch to be CLOSED, or showing ZERO resistance. If it shows a high or infinite resistance, the switch may be faulty.
But frankly, given the seemingly common problem of failing coils on L-B 2-cycle engines, I would think the coil would be a great place to start. It may be bad inside, not allowing spark to properly build inside. This could result in a weak spark or no spark. If it only shows a weak spark, and intermittently, I would suspect the coil.
'87 Lawn-Boy Supreme 8157 (L-B F)
'94 Craftsman 3-n-1 (Honda GCV160)
'95 Lawn-Boy Silver 10301 (engineless)
'99 Lawn-Boy Silver 10330 (Tec LEV100)
'01 Honda Masters HR215SXA (GXV140)