Vapor Lock?

[wantin150]

Decided to go for a ride today. Started around 11:00 and grabbed a drink and fuel around 12:30. Outside temp is aound 100F. Bike water temp hovering around 70C. Now, I took a little break and got back on the bike. I made it about 100 yds before encountering an "issue". When I twisted the throttle, it acted like the clutch was slipping. REAL sluggish. I pulled over and it died. I got it to start after a couple of attempts and actually had to increase the idle to around 1.5k to get it to keep running.

I decided to cut my ride short and try to limp back home. First light I came to (after only a couple hundred yards), I clutched in and the rpms hit around 3k in neutral. I adjusted them back down to around 1k and the bike was fine.

Bike is a 2007 Yamaha YZF600R, carbed. Was this just a case of vapor lock? Or is there something else I may possibly be concerned about? If it is vapor lock, any ideas as how to avoid it in the future?

 

[Turk]

So, now that it is cool, does it run fine...? If so, probably is.

I get it when I shut off the engine for a few minutes, mine takes an extra 5 seconds to start. I have not run it in that high heat though.

Good luck, let us know if it runs fine when cool....

 

[wantin150]

On the way back to the house, I stopped again and shut the bike down for 10-15 minutes or so. Started up fine and drove fine. I thought maybe that since I ran it low on fuel (reserve light was on- put in 4.23 in a 5.02 tank), that may have caused it. I've had gas pumps (vapor lock but never an engine.