I was recently washing my Scram when I noticed a clear tube that was run from under the transmission towards the back of the bike. I grabbed it with my hand and tried to follow it towards the front of the bike only to find out that it wasn't connected in the first place. It's approximately 18" or longer. From what I can tell, I'm not mising any from the carb and I still have the one that comes off the top of the transmission in place. Any ideas where this one came from? I can't find squat in the service manual. Thanks!

 

maybe the battery vent tube..

 

You know, that is a possibilty. I did put a new battery on it when I installed the tach. I did find it routed up next to the battery, but I don't remember disconnecting a tube from the old battery. Hmmm....I'll check it out and see. Thanks