Ok, so i got my 1988 bandit running today. Runs really good (so far). Left it running for like 20 to 25 min and the thermo fan wouldnt come on, took it for a 5 min ride and still didnt come on. I put direct power to the positive on the fan and it worked. Plugged it back in and still not working. (All plugs are plugged in properly). What else can i look at?