Martin is spot on. That was exactly how you adjusted beetle autochokes and you can do the same on T25.
In fact in much warmer weather you can back it right off until it has no effect - saves fuel. Never come across two bi-metalic springs that worked the same anyway and often found an older one worked better than a new one!
Bear in mind that as its a very rough (if not dumb) sensor, it isn't going to be right, all of the time. A summer/winter setting helps match it more closely to ambient and operating temperatures and if its a daily driver you will save considerable fuel doing that. The alternative is a manual one but then people forget to shut them off and theres no gain.
The auto is merely a compromise and one should not assume that it has no scope for adjustment. You don't want to be messing with it all year - just a general summer or winter setting. You slacken the three screws slightly and adjust accordingly. In use they're supposed to come off within a minute or two but you may find the choke isn't on enough or on too much. Find the sweet spot for summer (ie no choke on a day when it shouldn't need it) and mark it. Do the same when outside temperatures are brassic (on enough to just stop vehicle stalling during initial warm up) and you'll have your own summer/winter settings for your OWN vehicle that work much more efficiently. If choke not been moved in a long time, may need persuasion to rotate it once three screws slackened. Turn it and watch choke flap move with air inlet pipes removed from top of carbs. One way will close it (choke on), the other way will back choke off.
Might WIKI that...
Just did
https://club8090.co.uk/wiki/Fu ... _Autochoke" onclick="window.open(this.href);return false; with a few more pointers.
Hope that explains it
Twin carbs work the same - just adjust as a pair. When engine is warm, choke flaps should be wide open - blip throttle to make sure. If it were me, I'd just find the right setting for all year round (ish) on twin carbs as you may not want to mess with a winter/summer setting. Once you understand what they do, you should have no problem setting them up. You'll see them on each carb (facing you I think on the 2ltr) - round thing with three retaining screws that just stop it being loose.
. There must be an article on here somewhere that explains how to adjust your choke with a step by step guide for the novice - can anyone point me in the right direction please?
