Most of the time, it's my own stupidity that does it.
I don't have a front stand yet and recently wanted to paint my lower triple to match the powdercoated top triple I had just got back.
Hung the front of the bike from a ladder using 4 tie downs, secured the rear on a stand, removed pretty much the whole front of the bike. Headlight, windscreen, wiring, forks, gauges, indicators, bracket that runs in between the two triples, bars and everything that need to be removed from it because it wouldn't fit, mirrors (to keep them from getting scratched) etc. etc.
Some of this was hanging from the leftover strap material as I just let it dangle from the ladder.
Got the triple painted, let it dry overnight and it took several hours to re-assemble everything while cleaning each piece. Got the WHOLE THING put back together.
Got it done and realized I had routed the brake lines on the WRONG side of the forks. Out came the profanities. I tried to just drop the one fork and work the lines in between the top triple and fork, only to realize it was also on the wrong side of that bracket that goes between the two triples. Double profanity.
Had to tear the whole front off again. Took me another 4 hours at least (mostly because the front WAS hanging from a ladder and I was being extra careful to make sure I didn't drop anything or push on the bike too hard).
It sucked, but I bet I never do that again. In retrospect I should have just pulled the lines off the m/c, but as I had just put my F3 wheel on and put my calipers back together AND re-bled the lines, AND I didn't have a Mity Vac or anything AND it took me 3 hours to bleed the lines AND I was out of brake fluid, I just DIDN'T want to do that.
I also now know a MUCH easier way to bleed the lines, this last time took me 20 minutes.
Live and learn.
2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)