Not happy with the rubber boots I fitted to the plug caps - too loose, just inviting ingress of water? So copied Jim and bought a couple of these:
Much better, small, neat and tight fit. Set out to visit my brother-in-law, lives in West Lothian so 55 miles including the notorious A720 Edinburgh by-pass.
But we only managed five miles. Fifth gear, 60 mph, the engine abruptly
stopped. No hesitation, no coughing, no dying as with fuel starvation.
There was a gateway to a big house coming up so coasted to a halt still in fifth. First thought was, must be electrical. Opened the seat and checked the battery leads - fine. Pulled at the connections I could see - all tight. After maybe five minutes, helmet back on, see if she'll start.
Lit up first kick, so headed back home. Ran absolutely fine, even overtook a couple of cars.
Went to West Lothian on the W800.
Since I've been back, ventured out for a local test ride. Fine. Another, slightly longer ride. Fine. That's about 30 miles with not even a missed beat.
Have checked the battery and it shows 13.7V with the bike not running.
Do I put this down as a one-off glitch? Hmm - don't like that idea.