I'd do some tests on the battery especially a load test. I had similar amounts of fuckery on my Ninja 250 and it was because the battery was struggling under load.

I've had the needle bounce erratically a few minutes before an electrical short happened one time. I don't know why though.

 

Check your charging voltage too. 1st gen SVs have notoriously unreliable regulator/rectifiers. If it goes bad and overcharges, you might fry your ECU. If it goes bad and undercharges, you may be stranded. Upgrade to a MOSFET type if yours is still original, even if it tests ok.

 

Ah yes. The R/R is a component to check for sure. I heard it is quite common for them to fail after 30,000 KM.

 

Thanks guys for all the assistance. I'll get myself a tester and see what the crack is. Bike is still starting fine, just don't wanna get stranded while I'm out. I will post my findings and anything else. Like what was said, if anyone finds this thread a help then its all good.

I will keep posted.

Cheers boys

 

Check the battery and charging voltage for sure, as well as all the terminals and grounds to make sure they are snug.