Figure part of my engine running rough is the 1+ year old gas in it. How do I drain the tank? Please don't say siphon because I hate the taste of gas

 

2 bolts connect the tank to the frame. up top near the cluster, the other underneath the front of the seat. then remove youre fuel lines from the petcock and you're good to go.

 

And the first reply is from a guy whose sig is "You ain't a real mechanic until you've tasted gasoline... be it on purpose or accident" lol

Thanks

 

haha that came from me cleaning my carbs, and my fuel line snapping back and spraying me in the face lol. good luck!

 

If you get gas anywhere NEAR your mouth while starting a syphon, you are doing it VERY wrong. You only need to get the gas level in the hose to come up, out, and then below the tank. Then gravity and vacuum pressure pull it the rest of the way. What are you doing, sucking and spitting??!?!

 

enlighten us on your new 21st century way of siphoning then! lol

 

Put as much of the hose/tube/siphon as possible into the tank, let it fill itself with gas.
Put your thumb or finger of choice over the end you're holding onto.
Direct thumb end of hose towards a bucket or the like on the ground, release thumb.
If done correctly, the hose should have enough gas in it to pull it out.

If level is low, use other source of gas to fill up the siphon.
No need to suck

 

I think maybe we're missing something easy here. Get a 2' piece of fuel line that you can pick up at PepBoys or someplace like that. Turn the petcock off, disconnect the fuel line from the petcock and attach your extra hose to the petcock. Turn the petcock to reserve and watch all the fuel drain out. You should be able to get 99.5% of the fuel out. That's based on my riding on reserve until the engine quit running.

 

I thought about that too but see this thread https://cbrforum.com/forum/cbr-600f3-17/petcock-quirky-97630/

Not sure my petcock is working. I know it damn sure isn't installed right

 

You only suck until the fuel level in the line is below the fuel tank (helps to use a clear hose). Given that your line has to a reach a bucket or whatever on the floor, you're only sucking the line until the fuel is only 1/3 of the way through the line, PLENTY of distance away from your mouth.

Gunnar's method is nice too.