@wobbly Yes, I am down to timing and/or worn needle valve or atomizer. Seems to be more of a mid-range fueling problem.

I measured the resistence of my plug wires and confirmed that they are 5000 ohms. So it appears I have the right plugs and wires. Good rule-out. Also,...

@wobbly - Thanks for the detailed answer. Very helpful. When I roll the throttle to wide open, the motor pulls cleanly all the way to redline. Given t...

It is a bit challenging finding tires, in general. I am now looking for 110/90-18's for the street and also 110/90-18's for dual sport leaning towards...

Thanks, James. My 1976 R90/6 has a stiffened San Jose aftermarket swingarm. I should probably just play it safe with the 110. It's not like the bike n...