I had some troubles the past couple days with my 2009 C5. It has about 900 miles on it. So far, been mostly trouble free. On Sunday, I was headed out on a short ride. The bike started fine. I pulled out of the driveway and didn't get 600 ft. down the street when it died. The starter seems to turn fine, but it would not start up (plenty of fuel). The odd thing is, the red engine light indicating the fuel pump was initializing kept coming on and off (as did the actual fuel pump noise). Sometimes, when I was holding the starter button, the whole thing would kind of die (indicator lights would go out, I assume headlight went off too, but can't be sure).
I pushed it back to the garage and started tinkering. I opened the fuse/electrics compartment and pushed on the fuses to ensure they were in all the way. I removed one of the square relays (I think that's what they are) out of curiosity and put it back in firmly. I checked the battery on a charger. It had room to charge, but said it was otherwise OK. I put the battery back on the bike. Turned the key to on, and it fired right up. Problem fixed? Not quite. Yesterday, I went out for a short ride to ensure the symptoms were resolved. I went for a leisurely 20 mile ride. Noticed the fuel indicator was coming on at hard stops, so I decided I'd top off the tank. After I filled up (and still at the pump), I had the same starting problems as before. Again, the red engine indicator light would sometimes come on for a pre-start, but when I pushed the starter button, everything went dead for a second. Again, I opened the electrics compartment and fiddled, but didn't find anything loose. Went to start it up, and it first it didn't start. Played with the headlights, tried again. Voila! It started, at which I promptly drove home and parked it in the garage.
So...thoughts? I don't use the sidestand much due to reports of the finicky cut-off switch. I put the battery on the charger this morning to top it off. It is a new battery as of November. I didn't trickle charge the battery over the winter and only rode once every couple weeks (sometimes as much as 3-4 weeks between rides).
I'd really like to be commuting on it now that the weather is improving, but am afraid I'll get stranded somewhere less than convenient. I plan to disconnect the wiring for the sidestand switch to eliminate that possibility, but right now I doubt that's the problem. I'll probably be getting a battery tender or something to monitor the charging and battery state. What baffles me more is the fact that it started fine, but died 600 ft. down the street.