Z1OwnersClub GB

My 79' Z1R revs like mad on cold start 3750 ish RPM. I have tried using less choke but the bike will only start on full choke you can then immediately close the choke off to a suitable level and the bike warms up fine.
The carbs have been jetted with the correct jets, so I have been told ?
Is it the jet size or something else ?
Any advice welcome.

pilgrimz1r

Pilgrim, If the bike runs OK when warm, don't touch the jetting/needles etc.

Some of 'em do rev a bit on start up But its better to get the oil round quick (without loading engine) than to let it idle real slow