Carbs are off, I don't want to miss anything!

[Darren69]

I suspect pilot jets and or pilot galleries have muck in them causing the bad low speed running, and wonder about the float heights or needle valves causing the sooting up of the plugs? The carbs or not overflowing, it is not smoking from the exhaust, but the ends of the silencers is quite sooty, as you would expect I suppose.

That would be my guess also. Has it just started playing up when it was ok before and unchanged? You say its got flat slide carbs not cv ones? Then it has been upgraded, it's a good upgrade over the standard Mikuni CV's

[Brian.]

Originally Posted by Darren69

That would be my guess also. Has it just started playing up when it was ok before and unchanged? You say its got flat slide carbs not cv ones? Then it has been upgraded, it's a good upgrade over the standard Mikuni CV's

APOLOGIES Darren! My mistake, I wrongly thought they were flat slide but they are actually the same as the ones in the Haynes manual, so I now assume that they are Mikuni BDST 38mm CV type.

Sorry for causing confusion! I have corrected the original posting.

Yes, it's always been like this, I assumed that it was just simple carb balancing that was needed. That has given it a much better tickover, but it's had no noticeable effect on the really rough running.