I've been slaving over my brother's 77 super sport to get it ready for the bbq, and it ALMOST runs!
The thing won't run with the exhaust on (restriction in). We recently replaced the rings & compression is good, but it won't run with everything buttoned up. Barely runs with the SPARKPLUG PARTIALLY UNSCREWED or the exhaust unbolted. We've tried everything we know, and it's like the condensor is bad and the spark doesn't jump under full compression, only it was tested and works. We have done this with air cleaner on and off, prefers ON, but not much dif.
It pretty much fires but only when pedaling and doesn't sustain at all.
Previously this thing did the same thing but ran crappily due to a sheared and welded ring-since fixed. Any help is good.
We need this to run or we will be beaten after months of pain.