• There has been a recent cluster of spammers accessing BARFer accounts and posting spam. To safeguard your account, please consider changing your password. It would be even better to take the additional step of enabling 2 Factor Authentication (2FA) on your BARF account. Read more here.

Draining gas tank

m_asim

m_asim

Coitus Infinitum
Joined
Mar 25, 2004
Location
LA, CA
Moto(s)
Stephanie (she is a Kawasaki)
I am working on a restoration project on a bike. I took the gas tank off the bike and took most of the gas out of the tank using a suction mechanism. However I can still hear gas squishing inside the tank. What should I do to completely drain the tank?

I think because of vacuum all the gas isn't coming off the petcock. Online results seem to suggest that pulling the hose off the petcock should be enought to drain the tank but its not working in my case.

Would a pump like this work well?

Or should I completely take off the petcock?
 
Last edited:
I did turn it upside down but not all the gas comes out due to the design of gas tank (some of the gas goes to the sides).
 
Get as much as you can by pouring/draining it from the various holes and then just let it sit and wait for the rest to evaporate. Do NOT use heat to speed the process. And when letting it sit, don't let it sit around water heateres, furnaces, and stoves and the like. You don't want gas fumes to ignite and explode.

Work on something else until the gas has evaporated.
 
Or, if you have a shop vac that can be hooked up to BLOW, you could duct tape a smaller hose to the end of the vac hose (not too much smaller than the fill hole in the tank) and stick that hose just into the tank but not into the gas. Turn on the vac and make sure you have plenty of ventilation. And keep the tank away from the vac. Actually, do it outside. And be ready, when first turning the vac on, that if you get gas spewing out the tank, forget it and shut every thing down immediately. The idea is to simply get more air into the tank to push vapors out faster. And use a long hose so you can keep the tank and the vac far apart. (Do all this at your own risk.)

Also, don't even think of using the vacuum to suck either fuel or fuel vapors. That would be a disaster. (Can you say "boom"?)
 
The EX has a vacuum tap which only flows when the engine is running. Removing the tap is simple or you could use a vacuum pump to open the tap (also useful for bleeding brakes)
 
You must log in or register to reply here.
Back
Top