RE: SMALL DISPLACEMENT FOUR STROKE GLOW TO GAS CONVERSION
Evert1969:
Since the FA82 collet type hub can slip, it's all the more important to mount the hall sensor to take advantage of the slotted adjustment in the plastic sensor housing. Many engines have a convenient round diameter adjacent (right behind) the magnet hub that accepts a simple hose clamp which allows for a lot of timing adjustment. In my Saitoconversion, I found the hose clampideadidn't work because on the Saito 150the bearing diameter isn't contiguous. So I made a complex bracket instead that you'd probably find difficult to do. You may face some hard choices on mounting your sensor, but however you do so, preserve the sensor adjustment capability because it sounds like you may need it.
My Saito 150 gassser conversion ran for the first time yesterday. I only had a chance to run it for a few minutes before running off to see the movie Avitar. I don't have any tach measurements or tuning observations yet. But it sure ran smoothly. Here's a picture.</p>