Preparing to go out for a ride on a fine Sunday a.m. and the bike had only been running on the side-stand for a few minutes, when it suddenly cut out. I was not even touching it. Tried to re-start it and the starter button was totally dead, not even a click. The bike had been on an Optimate charge for the last few days, so it wasn’t battery. It had a full tank of fuel, and was not troublesome to start initially, so not a fuel issue. I waited for a minute or so with the ignition off, then re-started the bike. It started up normally & ran fine. I put my helmet on, sat on the bike & it cut out again without me touching anything. All info on the dash as normal, no fault lights flashing, & all switches as normally set.
I checked the side stand was properly up. (there is no light for this on the dash)
I set off for what was going to be a fairly lengthy ride-out (at least ½ a tankful)
but another 150yds down the road, it cut out again and I had to coast in to the side of the road.
No coughing or spluttering, just totally dead. Lights remain on, just the engine goes dead. So it’s the ignition circuit, but which part of it?
I thought I’d be brave, and take it around the block for 1/2mile, which I did, and no issue, it stayed running, so I decided to head out on my planned route. I got a few more miles along my route, and having tried it at crawling pace, and ‘a good handful’, felt a little more confident. I ventured onto a main (A3) road, and wound it up. I’d just filtered onto the dual carriageway, when it cut out again without warning. I decided at that juncture, no way could I do a 100mile+ ride-out today, and limped it back to base, (which was another 2 stages).
Its electrical, and something with the engine run circuit, so I'm thinking possibly side stand switch connections, ignition control module or engine management unit? Anyone got any better ideas? I've been too busy to have a go at it today. Just thought I'd send out the facts of this annoying issue to sound you guys out. 19.6.22