poutput, may be just a surly battery

Skidlydog......Pull the spark plug leads (all 4) and turn the bike over for 15 seconds with a digi MM on the battery......or come up with another creative way of turning it over without it starting up
If the LOADED volts reading drops below about 9.5 volts, chances are the battery is fekked.
PS don't automatically go for '
An Oddysey' just because it's the one that gets mentioned all the time.......they are overpriced and not particularly good at deep discharge recovery....it's just that people know the name and they give stickers out, so people think of them as the Bee's Knees.
Exide or the BMW OEM batteries are just as good, if not better, and usually cheaper, and you dont have to fekk about with silly bracketry either.
Use your noggin, have a look at what's available and you'll get a battery that is just as good for 30-40 quid cheaper.
If you're not going off-road with the bike, you don't even need a GEL battery......again, that's just something that the brand/image name aficionados like, because it makes them feel 'special'
