Alternator issues HELP
Hi all, looking for help, pointers, and opinions please.
long story, short version. This is about a 1992 GSXR 1100, alternator keeps dying.
I fully charge the battery (lithium battery, using batter tender to recharge). Reads 13.4 volts.
Bike starts and runs well for approx 30 minutes, at which time the battery has depleted severely. Then bike starts acting up as if misfiring the dies when battery is depleted to 10 volts. Recharge batter, and same cycle starts. I am certain the misfire is due to the ignition system not getting enough volts.
Alternator in this bike has two wires (orange and red) coming out. I think it is the following:
ground is through the alternator body to chassis
red wire is power generated and should go to battery
Orange wire is battery feedback to alternator
Alternator Red wire reads 0.5 VDC (this is a problem since it should read 13.5 at idle)
Orange reads very close to battery level at that moment
The alternator has a problem, but then I had it checked and they replaced voltage regulator. Same thing still happens.
I am wondering if there is something in the bike that is killing the alternator. I checked all my connections and all seem good tight and without corrosion. I did find corrosion on the connection underneath the battery box feeding the + battery cable. Although ohm meter showed no resistance in that area, I did clean and grease it.
Any thoughts or suggestions? May be a test to find shorting circuits that I haven't been able to find? Anything?