A couple of days ago I was kicking around the idea of going full loss on my GS500EV. Today I looked over the wiring diagram and decided to make a start.
To start my experiment I disconnected the Alternator from the regulator. The bike started as normal with the starter button, so that was a win.
Next was to remove the rotor, so i stripped the left casing and noticed that one of the magnets had let go from the rotor. The magnet was still in place but had slipped around the rotor a little. Seeing as the rotor was coming of, not really and issue.
Next I pulled the rotor, stator, starter motor and starter gearing. Then I put every thing i had taken of on a set of scales and found I lost another 4.5 Kg. So now the bike weighs in at 155.5 Kg wet.
I put the bike back together and took it out for a ride, I have to bump start it now seeing as there is no starter motor. Not exactly legal where i live but who cares. I instantly noticed a good power gain, it revs up way quicker than before.
All in all it was a huge win. I still need to do some testing to see how long the lithium ion battery will last . I'm going to run 2 lithium batteries, both tucked up under the seat. One will run the ignition system and the second will run the LED blinkers and brake lights. If i can get 2 hours run time out of the battery i will be happy with that. If all goes well I will remove the starter solenoid and reg/rec, rewire the entire bike and stick it on the dyno. I think it's making around 46HP at the rear wheel with this mod. I was making 43HP before, only a dyno run will tell
Thats all for now i'll do some testing tomorrow and report back
  Johno

Finally got to go for a ride today,so i headed out on my usual run around the local beach and my race track/local streets.
I made a 10 segment LED battery monitor to keep and eye on the battery. Everything was going well until all of a sudden the battery monitor starts to drop rapidly, I hung a U turn and headed straight home. I was 6 houses from home when the bike just died beneath me, so i just rolled her up the driveway. I only just made it home.
I put her in the workshop and did some poking around with the multi-meter and found that the battery only had 7.8vdc. It was at 13.6vdc when i left home 30 minutes earlier.
Then I notice that some how in my travels i had switched the headlight on, the low beam filament is blown so it was the high beam that was on and it sucked that battery down in no time.
Oh well, live and learn. Still need to do more testing, the the bike is alot quicker through the gears now and there seems to be slightly more engine braking which is kind of a good thing.

Quote from: crackin on August 05, 2018, 02:30:01 AM
and there seems to be slightly more engine braking which is kind of a good thing.

A good thing?
yeah.......a fair trade for a 30 min range and push starts only 

If you were using it on the track maybe but on the road...........what ever floats your boat.

It was my mistake to switch on the high beam, thats what killed the battery so quickly.
It's just an experiment to see what the GS engine is capable of, and it's so easy to do I thought ,why not try it just for fun. I'll get it all sorted out soon. Doing crazy stuff does float my boat, not for everyone i'm sure.