My 91 HB used to start when I had my old sparkplug wires on it, then I found one of the spark plugs faulty when it started to bog down. I changed the plugs and now it starts cranking up but when its supposed to start, it just kinda stops. Like it cant crank over for some reason. Any suggestions?

 

Any codes? And are plugs torque down to spec and the wires plugs are seated properly meaning a click noise when properly seated and the dizzy cap is clean and if rotor inside dizzy is decent.