hey everyone. i have a '93 honda cbr 600 f2. first question- if your battery goes dead and u charge it . and rev the bike while still in neutral actually recharge to bike.
2 question- from the bottom of the gas tank on the out side there is 2 tube just out there r they suppost to be just hangin or do they need to be connected to something. or is that the breather. its called fuel tank drain tube and fuel tank vent tube. does having a liitle gas let even if u switched it to rerv drain the gas out because mind doesn't start maybe the spark plugs need replacing because when i hit the start it make a noise but i think there is no spark. to start the thing.

 

if you rev your bike, it won't charge much. i suggest you buy a battery tender/charger. check it with a voltmeter.

and on my bike i don't have a vent tube. it should be fine.

you could have a lot of problems. i would check the battery first since it's the easiest. then you can troubleshoot it from there. i thought i had one problem on my bike when i picked it up and i ended up fixing 3 things to get it to run right.