Motorcycle Repair: brike spark plug, fuel starvation, starvation problem

Question
hi i have a cb 650 1982 i've had nothing but problems with so i got a garage to put in a used motor i got the bike back 3 months later after fighting with them i got the bike running but it wouldn't run for very long it would just die and i didn't know why so i did the general stuff including change the spark plugs on the last 1 it broke right in half and i tried an easy out and broke that to to how would i get it out now if u could help i have been ripped off twice by bike shops i need to do this my self thanks

Answer
Sounds like you have a fuel starvation problem, which is why the engine stops after a while, so check filters in the gas tank etc.  

Now to get the plug out, this will be difficult with a hardened steel easy-out in there.  Only way is to take off the cylinder head and have it spark-eroded out.  It will need to be done by a machine shop, bike shops typically farm this stuff out too.  It may be easier to find another head or even a motor to get you back on the road.

Good luck,  Jan