Every Tecumseh Hater's Nightmare--Ignition
Tecumseh Points Ignition install is always tricky.
Backer plate and polished intake manifold on. Note bump cam installed. I did lap the taper with the flywheel beforehand.
I completely disassembled the coil and removed surface rust both inside and out. The points air gap is set at 0.020 at the high point of the bump cam. If this air gap is not correct (even a tad off), the timing will be way off--you won't be able to get a solid ohmmeter reading. This took a dozen tries to finally get as my fingers are just too big hold the points and tighten!
Here's the poor man's dial indicator set up:
The timing is set at 0.035 BTDC with both valves closed.
Once the ohmmeter toned, I fine tuned the timing so the needle was just moving and buttoned her up.
A new variable speed throttle was installed. Installed a known-to-be-good carb and roughly set the governor up.
Head and shroud went on and ready to get outside and test!