I'm guessing that you have the 2003 650. The 2004 model 650 added a rain deflector just in front of the kickstand. See :
http://burgmanusa.com/forums/viewtopic.php?t=1220
http://burgmanusa.com/forums/viewtopic.php?t=1220
Could be the rain deflector thingamig (or lack of it) that has been mentioned.corvairbob said:say has anyone discovered why the left side of the 650 burgy gets so much rain on the driver? i had to drive home in the rain and my left leg from my knee up got soaked! the right side was fine. .
Believe it. Suzuki wouldn't have made it standard on the '04s and up if it didn't work, they would have made it an extra-cost accessory or just left it for a third party to sell (like Throttle Rockers, etc.).corvairbob said:ok now that i have found out about the little part the dealer sell for hte burgy to keep the rain off my left leg, can anyone tell if it does in fact WORK! i see it but i don't believe it.