How do I check out the rectifier and charge coil on my 2000 Yamaha F100 4 stroke? The motor will run, but is not putting out any voltage to charge the battery.
I would recommend getting a manual for your motor. I just ran into the same problem, my rectifier was bad. It is not to complicated to check and replace if need be. You will need an ammeter.
Or a VOM... That should cover all bases. And I think there is a fuse in an inline fuse holder coming off that rectifier. If so, make sure it isn't blown.