How do these work??

Information relating to the Matchless G3 or AJS Model 16 350cc Heavyweight
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How do these work??

Postby Oasist1980 » Sat Jan 16, 2021 2:14 pm

How do these work? With the open closed shutters on them.
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Re: How do these work??

Postby 1608 » Sat Jan 16, 2021 2:19 pm

Its a very simple choke. With the vents closed its on full choke for cold starting. Open vents when warmed up. Handlebar operated with a cable is far more practical though.

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Re: How do these work??

Postby Oasist1980 » Sat Jan 16, 2021 2:55 pm

Thanks for that, are they any good? Or better removing?

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Re: How do these work??

Postby Mick D » Sat Jan 16, 2021 3:22 pm

Oasist1980 wrote:are they any good? Or better removing?


Hi

They're better than nothing but I prefer an air slide in the carb and a lever on the bars.

Regards Mick

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Re: How do these work??

Postby Oasist1980 » Sat Jan 16, 2021 3:36 pm

I do have a manual choke on the handle bars too.

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Re: How do these work??

Postby Mick D » Sat Jan 16, 2021 4:23 pm

Oasist1980 wrote:I do have a manual choke on the handle bars too.


Hi

If you have the full choke system I'd lose the air filter and fit a standard bell mouth.

Carb Cable Adjusters.png


Regards Mick
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Re: How do these work??

Postby Oasist1980 » Sat Jan 16, 2021 4:28 pm

Thanks I’ll remove and fit one
Of those bellmouths

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Re: How do these work??

Postby Rob Harknett » Sat Jan 16, 2021 4:46 pm

Those chokes are mainly used on 2 stroke engines that have no lever and of course a choke slide. The air lever control works how the engine needs to be controlled. Fully closed for very cold starting, then gradually opened to fully open as the engine warms up. So take it off and use what should be fitted to the bike, eg Choke slid in carb and operating cable/lever.

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Re: How do these work??

Postby JEAN-NOEL » Sun Jan 17, 2021 3:38 pm

You have now to check the main jet, and the needle position. The original settings should have been modified when this device was fitted.

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Re: How do these work??

Postby Rob Harknett » Sun Jan 17, 2021 8:15 pm

JEAN-NOEL wrote:You have now to check the main jet, and the needle position. The original settings should have been modified when this device was fitted.


This choke may have been fitted without changing jets and settings, if so it may run better when taken off. I should have mentioned this in an earlier post. So thought I should back up Jean-Noel's comment, so do check your carb settings and jets.

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