I posted some time ago a solution for simplified wiring for the `96 Fantic Section - and other bikes extrapolated. The simplified scheme removed all but the fan diode/regulator power modifying thing. The sytem worked well, but I have noticed a problem on my bike. I haven't heard from anyone else about this problem, so I am assuming it will only happen to a few out of a group of bikes.

The problem I encountered after 2 years was that the fan would occasionally not start, and the bike would get noticeably hot. Touching the fan blade would be enough to get it going again. It wasn't a big problem until my last ride, when Ron Brehm and I were doing a photo shoot, and I wasn't paying attention to the bike. The bike got hot enough to boil the coolant, and ended up melting and blowing a hole in a thin spot in my reservoir. So...I repaired the reservoir and examined the problem.

The `96 and other Sections, and perhaps other bikes as well, use for the 12V DC power circuit which runs the fan, horn, lights, etc., a regulator to convert the 12V+AC to DC. There is also another electrical power modifying component - a flat, finned thing - that further modifies power to the fan only. My simplified wiring scheme did not employ the regulator at all, but only the fan power modifying thing. The result was a mix of AC and DC power that worked to start and run the fan 97% of the time. That other 3% of the time, the fan would just jiggle a bit but not get going. Thus touching the blade would light it off with a zing! to the finger tip! It worked, but not perfectly, so I am now suggesting you add the voltage regulator back into the wiring scheme. The scheme would then be:

12V AC wire (yellow) from magneto to voltage regulator outer ~ post on regulator. Out from the voltage regulator inner ~ post to the fan switch on head (either side). Then from fan switch on head to the fan power modifying thing and on to the fan. Same as before, only you add the voltage regulator back in previous to the fan switch. Don't forget to properly ground the regulator (ground symbol post on regulator to the screw mounting the fan power modifying thing).

The addition of the regulator provides smooth DC power to the fan so it will start no matter what.

Chris (CJ) Johnson
Director of Engineering,
College Park Industries, Inc.
(810) 294-7950 (at CPI), (616) 664-4173 (home office)
papazit "at" juno.com