YPVS Loses Position(?)

[2steve]

Extended test ride today in 77 degrees F. Still more manageable with the gnarly needle, (it's not bent, just "chewed").
That still points me to new carbs.

However, riding 21 toward Rock Hill I noticed that going downhill and pulling in the clutch, the engine would stop. Obviously, I had felt the need to do that.
Turned around to go back and it stopped under power. Pulled over, had to turn off the key, then restarted.
I'm gonna change out the new Yambits coil to the original RZ one that I thankfully kept. It's ugly, but might just work better.

[automan]

 

[Kawtriplefreak]

I am concerned about my dual outlet RD400 petcock flowing enough fuel to feed the PWK 35s on the 421. So I will be ordering the 660 Raptor petcock and modifying it for dual outlet. I considered a Pingel but I want to keep a reserve feature and am also worried that the lever on the petcock won't clear the RZ side cover.

[2steve]

If it's really the carbs, and it could be, I might have a fuel feed problem after all. Last time I had it out, it was lurching some when slowly dying on the open road.

My petcock flow passage (recommended by Mark) looks generous, but I also bought a genuine RZ unit with plans to put in a second outlet. Besides that, I would be able to turn it to reserve while riding under duress.

Wondering too about bowl filling inside the carbs through the needles and seats.

These ponderings would go better if Chuck Q were to jump in. Your concerns especially.

[m in sc]

not petcock issue