I dropped my '06 weestrom at a stop earlier this week. I laid it most of the way over and only let it "drop" the last few inches. Tip Over Sensor worked and killed the engine before I got to the kill switch. I picked it up, waited until my hands stopped shaking, assessed a scratched front fender, scratched trunk, broke the ball off my clutch lever, and gave my engine guard a kiss for doing a great job of protecting my tank.
Got on, rode around, came back to work, let it sit 4 hours, rode it home with no issues. Next morning rode it to work again, no issues, plenty of power... on the way home it fired up, warmed up, and as I pulled up to the first stoplight she died at idle. Fired right back up again that time and every time... she proceeded to die at idle almost every time I stopped for the rest of the 25 mile ride home in traffic. There were some slight blips in RPMs at idle on the occasions that she didn't die - idling as low as 800rpm, and cycling the idle from ~900-~1100rpm (1100rpm seems to be "normal" on my bike though I haven't previously checked it closely). I had NO loss of power anywhere through my power band. I run a Power Commander, K&N air filters and Hindle exhaust - she's a screamer.
Got home, put it on the sidestand, and let it idle... and she idled for at least 10 minutes without issue. Killed it, started again, idle idle idle no problem. Next day similar testing on side stand or when held upright - the problem is present but intermittent, 50/50 whether it will die at idle, or idle fine but die after I rev it up for a minute, or just outright die. I charged the battery up just to be sure.
So my problem is intermittent, and I have a few ideas about what the issue is. Will start tearing into her today and hope to complete troubleshooting and wrap this up tomorrow. Here's our (me and my man's) ideas...
1. Drop stirred up tank sediment which may now be clogging my mesh fuel filter. My shop manual indicates I can just blow this out if it's not horribly clogged (which calls for replacement), but manual also indicates clogged fuel filter could result in loss of power (none noted in my case). I'll start here.
2. Damage to a spark plug or spark plug cap from the jolt
3. Small vacuum leak from the jolt (that would be very difficult to find)
4. Sensor malfunction from the jolt (TOS or other?)
5. Power Commander malfunction from the jolt (I have software and cable but no practical experience with tweaking).
I'm hoping for any kind of ideas, experience with a similar issue, expertise, smartass comments, jokes at my expense, or suggestions...
Thanks in advance!