Auto Choke - Taishan Commuter

[davehuge]

Can anyone tell me about the auto choke on the Taishan carb?

When it's energised should the plunger move down or vice versa, hope someone can clarify this for me. Thanks, Dave.

[davehuge]

It's ok now I've worked it out...!

[davehuge]

I've spent the last few days sorting a problem on my son's Taishan Commuter, I now know the carb inside out !!!

If anyone's interested here's how the auto choke works.............

With the engine off the choke is ON, when the engine is started 12 volts is supplied to the auto choke, this starts the heater inside the choke and expands the internals. Over a period of approx. 5 mins the plunger moves down approx 10mm and blocks hole, it shuts the choke OFF.

The 12 volts remains on all the time the engine is running and hence the choke is off.

If the electrical plug to the choke unit is disconnected the plunger will not heat up and hence the choke will be ON all the time, the engine will run very rich.

I hope this is of some help to you!

Regards, Dave.

[Gavin]

Thanks for the information, and feedback on sorting out these problems Dave, much appreciated.

I have not got any problems yet, but if I do get any, at least I'll have an idea of where to start.

[hypojam]

Is it ok to disconnect the auto choke during the very cold winter?

[davehuge]

Even in very cold weather you shouldn't need to disconnect the choke. Once the engine is up to temperature it wont need the choke and being such a small engine it wont take much to get it up to temperature.