Intermittent engine stall

I finally determined my problem. From 1991 through 1994 PCM used an electronic ignition module made by Pro-Tec. The ignition module has been known to be faulty since 1994. The problem is hard to diagnose because the failure slowly increases in frequency. The electronic ignitiion module is not properly shielded so it receives other electronic signals from the engine which shuts it down. The problem increases when the unit gets hot. Eventually it resets itself. The fauilure is a function of usage over time.

The module is not manufactured anymore nor is a replacement. PCM has a few left, but only sells those to owners with fuel injection because the two are interrelated. For others (carbs), the solution is a Pro-Tec Ignition Conversion Kit (part no. RK107025A). The kit replaces the electronic ignition module with a distributor and coil (still electronic ignition). Skidim sells the kit for $455. I installed it in about an hour and have had no problems the past 2 weeks (12 hours on the water).

Partsman.com sells the entire kit including, wires, cap and rotor for $249.00 includes shipping. It's a great deal and works perfect.

partsman.com

Sure that is correct?

Edit.. never mind.. PARTMAN.com

http://marineengineparts.com/shopsit...age82.html#716


Says Chevy... assume this will work with the 351 as well?

A Chevy conversion kit will not work on a Ford engine. In addition, Partman's conversion kit does not inclue the wiring harness. This is necsessary to convert to the distributor system. Skidem works directly with PCM. I reccomend dealing with Skidem and getting the parts in the kit as designed by PCM.

Anyone ever go down this route?

http://www.jegs.com/webapp/wcs/store...tegoryId=10299

I'm still having problems, and considering this option.

This is rare, and I don't know if the Supras even have them, to be honest (my '89 certainly does not). BUT I have seen those stupid safety lanyard thingys become loose or otherwise faulty causing this: you hit a wave, it moves a TINY bit to the spot it doesn't like, the boat turns off. Won't restart until, by some miracle, it moves just enough to re-engage the switch and Vroom off you go. I give Supra boats a lot of credit, and I have only seen this problem on an '05 Ski Supreme and an '04 Chris Craft. You'll never see someone feel so stupid as when you show them that if they had just fiddled with the switch a little they would have been fine, rather than calling a marina and having someone come out there to check their engine, fuel system, ignition, etc.
Most likely not the problem 99% of the time, but it's kind of amusing when it happens, especially when the best solution is cutting both wires going to the switch and connecting them permanently.