I have a stock 2002 GS500, that used to stall whenever I came to a stop until it got really warmed up. I pulled the carbs cleaned them up, and rebuilt them. When I installed them, it wouldn't start, so I used some starting fluid spraying them into the carbs, and the bike started. I let it run for a sec, then shut it back down. Then, I tried again, and it restarted. I put the air box back on, and couldn't get it to restart. Then when I pulled the carbs back off, and sprayed more fluid in, nothing happened. Anyone have any ideas, I checked to make sure I'm getting a spark, and I am getting fuel down to the carbs, so I'm pretty stumped. Anyone have any ideas? Thanks.