. . Red line choke . .

[boris tarpit]

. . My 426 usually comes to life first or second kick with full choke no throttle but revs alarmingly high - 4000 or 4500rpm, I'm sure this can't be good for it. It's quite finnicky until it's warmed up a bit but otherwise runs and responds really well . . . Is there any way of calming the on-choke ''tickover'' down with out messing everything else up?? . . .

[mgelder]

Is there any way of calming the on-choke ''tickover'' down with out messing everything else up?? . . .

I only use one choke lever at a time. The bike will start easily with the just the front cylinder's choke, and then as it warms I can flick it off quite soon and use the rear cylinder's choke if necessary - usually only on really cold days.

As soon as it'll run (but not tickover) without choke, I set off. The route away from my house involves a lot of speed bumps and trickling along at 15-20 mph, and that warms the bike up enough to be ready for the main road when I get there.

I've always thought this to be a better approach than letting a bike warm up while standing until it's ready to go, but I could be wrong.

[boris tarpit]

. . it's a cable operated choke but maybe I can adjust or disconnect one cylinder . .