Bad cold starting GP200

[TS1-200]

Funny one this, having problems starting from cold (overnight) will not start unless I put my hand over the carb mouth to start, carb is 30mm Dellorto open mouth which is new, choke is working, thought I had cured this with a 55 pilot jet, checked the stator wires and the green/white is showing 445 would this be a factor, as it should be 520, can`t think of anything else, nothing obviously wrong apart from stator, when warm it runs and starts ok. Almost beaten me.

[wack 63]

The idle jet has nothing to do with cold starting,have a look at the choke jet which is usually 70 I think,bigger may be needed.Check it is clear and that the float bowl is drilled correctly to allow fuel into the choke jet recess.

[TS1-200]

Yes it is a 70, I will check the float bowl though