I was on my way to work and riding up the 133 near my house when the bike hiccupped and stalled out like it ran out of gas. I was able to coast if off the highway and pull into a private driveway to take a look. It turned out to be an old vent hose between the carburetor and petcock that had split and fallen off. I cut the end off and reconnected it and she ran fine all the way to work.

For you guys with older bikes - check your hoses!

 

 

good job finding the problem!

 

I'm assuming it has one of those vacuum operated petcocks, like my Yamaha XS has. I've heard of a lot of people replacing them with manual units, because diaphragms are supposedly prone to problems.
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heh i was working on a bike and forgot to plug the vacuum line on the carb back in. The bike went 1 1/2 miles before it stalled out. whoops