Problem with my Honda CB350 on running properly help?

Hi,

I have a 1970 Honda CB350 that does not run right. It was given to me to keep if I could get it running, and so I worked onm it a while and got it to run. But there's one problem.When I start it, only the left piston fires, leaving the right one not firing at all.

So I took the spark plug out on the right side, held it in my hand and kicked the engine over, and it did not shock me at all. I expected that the coil was bad and bought one on ebay. Well, days go by and I got it in the mail, I put it on the bike, hooked it all back up, and started it. Well guess what same thing. Only the left side fired. So I cleaned all of the connections that hook up to the coil, and tried starting it again. But when I started it this time, both pistons fired together for about five secs, and the right one quit firing again. So I killed the engine, started it again, and held my hand around the spark plug cap, and felt for a shock, and only got a good shock here and there. Help. PLZ.

loose wire some were or a corroded connection ya have to ground the plug some were for it to spark

we fixum