All The Same, or Individualize

I've been fighting a rich cylinder or two, really sooty plug(s), for a couple of months. In another post I'll go into more detail. (One cylinder seems to come and go)

My question is, how important is it for all the carb settings to be the same? If cyls 1 & 2 have the pilot at 1 & 1/4 turns, is it okay for 3 to be at 2 1/2 turns and 4 to be at 2 turns out?

I haven't done that, yet, preferring to find the sweet spot where all 4 have the same settings and all run clean. But, if I can keep turning out the pilot air screw until the one cylinder leans out, well, great.

Please save all the other suggestions for the next post. I've pretty well done everything (obviously not enough) and I"ll detail it soon.

All about the same...then sync...then tweak.

FWIW My CB350 Four, VM style carbs, was giving me fits over carb sync. Turned out that the linkage for the two left carbs wasn worn and the arm between the two slides would tilt. This raised one slide and lowered the other. What was tricky was that it only tilted when hot.

-Duck

Post edited by: Duck, at: 2007/08/20 19:23

Interesting. I haven't really examined the linkage, other than when taking the carbs on & off, so I'll check that out.