Good evening

I’ve recently had a full engine rebuild, new Tyga expansion chambers the only other mod is an HRC de-restrictor.
I wanted to get the jetting set up properly so took the bike to Kelvin Tatum so he could set the bike up on his dyno. He called to say he couldn’t carry out the work as when the bike reached 9k it kept giving him an electrical shock, he couldn’t get any meaningful readings and he couldn’t risk blowing up the dyno computer, any suggestions what I can check in order to get this rectified. I’ve done about 400 km’s since the rebuild the bike runs fine ok is definitely on the rich side and won’t rev out?

Many thanks in advance

Andy