I asked this as an aside in another post but figured I’d be more specific here. I’ve got many old outboards from the mid 30s up to the early 70s. Mostly in the 1.5 to 5 HP ranges. 2 stroke-cycle and 4 stroke-cycle, single cylinder and twin cylinder. One thing in common. I get them running – use a little for one season, put them away for a few years – and then no spark. I only use them for kickers in case my main engine dies out in Lake Huron. So when I DO have one mounted – it only gets run in a test or an emergency. I’ve grown a little tired of pulling off flywheels and filing points, just to have them oxidize again when in storage. I’d like to convert a few to breakerless.

ATOM of Australia used to sell little conversion modules and had many different types. For outboards – they sold one for fixed breaker-plates that did not advance timing with throttle, and another for units that did. Now – ATOM is gone, but I see other brands and from what I can tell – only one version to almost "fit all." I understand how breaker-ignition works. What I do NOT understand is how these modules get the timing correct when there is no longer any adjustment. No gap to set or breaker-plate to rotate. Any successful users of these newer modules like from Omega or Stens?

I converted my 55 horse four-stroke-cycle Fisher-Pierce to Petronix breakerless years ago and that has been great. But that Crosley engine has a real distributor I can rotate an still adjust timing. Not the case on these little outboards if I stick a module in them.