Sportster tank on a rebel 450. Help!

[mikeadamstattoo]

Hey guys, I just got a sportster tank for my rebel 450. I already know that a sporades tank's tunnel is too skinny for a rebel frame but whatever I'm fine, I'm making special mounting tabs.

My question is, the rebel petcock has these two weird smaller vent holes on them, one has a tube going to it. What are these and are they necessary? Rebel 250's don't have these vents/tubes. So for once I wish I only had a 250.

Anyone else mount a different tank on a rebel 450? Any problems?

Also the rebel petcock doesnt work on the sportster tank, perhaps I could get some weird coupling to make it work? Help!

 

[Nitsuj]

Could the extra tube you speak of be a vacuum tube? Where does it lead? Some metric bikes have vacuum activated petcocks. The sportster petcock is just old fashioned gravity feed. If your Rebel has a vacuum petcock, and you end up using the Harley one, you'll need to find where the vacuum line goes and plug it.

 

[DesmoBro]

http://www.youtube.com/watch?v=rM4njQ-YKTg&feature=player_embedded&noredirect=1

this guy has a really long "real time" video of how to redneck a bigger tank on it