Condenser weak old points ?
Did the flywheel cam lob wear down points arm closing points gap?
CK flywheel timing & stater ?
Did you clean gas tank/fitings ?
Did you in stall new gas hose/filter ?
Did you clean and re gap/points ?
Whats your timing set at ??
Did you Try a new spark plug ?
Your spark plug is Brand ?? NO#????
Spark plug gap is?