It makes sense that its 5v. A lot of the system is, isn't it? The service manual says to hook it up to a "fully charged" battery. I ran it again for a few hours today and its back to its functioning, clapped out condition. (I love working on these rigs, just wish it was someone elses. Lol)Sorry i didnt get back to this thread, works been stupid this week.
The problem with testing shift motors is they only receive 5 volts and a 12 volt battery applied to them can mask the problem.
The older Foreman and Ranchers were bad for it, hooking a battery to it would mke it seem fine, but replacing the shift motor would fix everything.