For the battery maybe bad regulator (serious problem it can burn the pgm)
Maybe the battery is dead again it can do damage!
or it has some electrical leek in the wire harness!
Premix i use 30 /1
If you open the ignition and push run on you will hear one sound, is the power valve but if you want to be sure look at the front cylinder you will see power valve it has 2 wires when you open the throttle in neutral at 2.000 rpm should move it opens if it is not move then the powervalve didnt work, reason bad servo bad pgm or many too many reasons!
ps the leaking in conection cylinder with exhaust isnt serious problem... dont worry about it! If you buy it we will talk about it !!
Last edited by petralism on Thu Dec 08, 2011 10:26 am; edited 1 time in total