I just bought a 70s Glastron that has this motor on it. Compression is 130, 130, 138. It has no spark on any of the the 3 cylinders. The seller said his mechanic says it needs a new power pack. Yeah, I know. What the seller says is usually BS. I thought I would be better off troubleshooting it myself instead of going with their word. So I grabbed my Clymer manual (1991-94 2-300hp). I tested the stop circuit and the key switch. They tested fine. When I got to the Stator test, it said I needed a Peak Reading Voltmeter and Pl-88 adapter for subsequent tests. After reading several similar threads, and hearing many people saying 90-something percent of the time it is the power pack, I decided to just order a new power pack. Well, that wasn't it. When I installed the new PP, it initially fired(ever so briefly, maybe one cylinder of one revolution) and let out a puff of smoke. And that was it. I then acquired a DVA adapter for my multimeter to get the peak readings that the Clymer was asking for. The stator showed 330 volts across A and B. And the stator resistance showed 840 ohms across A and B. So that checked out. I then started testing the timer base. I tested for shorts on each terminal and found none. Then I stopped for the day.
I'm wondering if that puff of smoke when installing the new power pack is telling me that it blew up, possibly the same as the one before it. Is there a way to bench test the PP? Where do I go from here? Thanks.
Stephen
I'm wondering if that puff of smoke when installing the new power pack is telling me that it blew up, possibly the same as the one before it. Is there a way to bench test the PP? Where do I go from here? Thanks.
Stephen

