Automatic choke issue

[jamesling]

Hi guys,
I'm having an issue with my 1.9 watercooled petrol. It's been struggling to start when cold, and won't idle properly when I'm at a stop and will then stall. I will have to use some throttle to get it running again, and if I let it idle it'll stall so have to put throttle on everytime I'm stopping.

I've tried to have a look at the mechanism and the choke flap seems to always be open even when I've tried to engage the automatic choke by pressing the throttle down. I've managed to get the flap closed by turning the lever with my hand and it was running perfectly afterwards until the engine heated up and opened the choke flap again so when the engine was next cool it would be the same issue. 
I'm not the most mechanically inclined so any help would be really helpful, how can I get the choke to engage when pressing the throttle down? 

Many thanks,
James

[TONYT25T25]

Have you had a look at the Wiki under Fuel System 1.9 WBX stops intermittently, it may give you some pointers.

[jamesling]

Sweet, I'll have a look cheers man

[kevtherev]

The choke is opened and closed with a bimetalic spring inside the choke housing.

The choke is adjustable once set up as per the haynes.

To see if the choke is connected to the spring or if the spring has broken the housing must be removed