I have a model 7086 2-cycle Lawnboy, vintage 1979, and it won't
start. It has been gradually getting worse, and now it won't start
I've changed the spark plug.
I've tested the on/off switch with an ohmmeter, and it's working
I've checked the exhaust ports, and they seem ok.
I've taken the carb off and opened it up. It looked quite clean,
with no crud, and the float moves easily. No apparent problem, but
of course I can't tell if the float is still calibrated, but even if
it weren't, it seems like the thing would at least start, or try to.
I've removed the ignition module and put it back, moving it as close
as possible to the flywheel magnets without actually touching. And
I made sure all the connections were good.
I don't have any way to test the ignition module, and I don't know
how to test for spark on one of these things. (Is there a gizmo
that I can install inline that will show if spark is present?).
However, the manual says it's a "breakerless, capacitor/discharge,
solid state ignition system". I assume this is a magneto.
Is the ignition module the most likely problem? A local dealer has
a replacement module for $66, which seems like an awful lot for a
little magneto. Any way to test this one to see if it's good?
In the process of playing with this and checking the exhaust ports,
I've concluded that the compression is still pretty good. There's a
big difference in ease of turning between having the spark plug in
or out. So I think the mower is in fairly good shape. It's old,
but hasn't been used a lot.
Any suggestions? Do I need to spring for the module? Is there a