I have a 1994 yzf750R and I replaced the motor on it and when I put everything back together I let the bike run and it ran and than I noticed the fans were not turning on so I shut it off. I let it run till it got to 100c than I shut it off. I replaced the thermoswitch assembly because I figured that would be the problem. I tested both the fans by hooking them to a battery to make sure they worked and both of them did. I checked the fuse and it was fine.