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#854695 07/26/21 3:05 am
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What is the recommended slide setting for best starting?

Approx. 1/16" gap between the front (engine) of the slide and the carb throat?

Same for GP and Monobloc (Scrambles) ?

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alibaba #854891 07/29/21 10:27 am
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For cold starts on the Concentric MK1 you screw the throttle stop in 1 to 1.5 turns from its warmed up best idle speed throttle stop setting, experiment to find the best setting.

alibaba #854894 07/29/21 11:19 am
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Set the slide for best idle when warm, with the throttle stop screw.

For cold starts, flood it copiously with the tickler, then “set” the slide 1/8-1/4 open with the twistgrip and give the kickstart a hearty swing.


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alibaba #854947 07/30/21 4:50 am
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All of the above are credible techniques, though personally, I'm not keen on fooling with the throttle slide stop screw every time I want to start from cold - I'm more of a 'descent flood with the tickler' guy.

A bigger factor is probably how well set the pilot jet is (assuming it's adjustable), though probably the most relevant is how far open the throttle is when you actually kick it over. Every engine seems to like a certain amount, between no more than it gets at idle to something more..all dependent upon how the carb is set, quality of the spark at kicking rpm and the weather.

I spent some time flying an aircraft with big round piston engines..the hardest part of flying it was getting the engines started when they were warm..years of riding and racing BSA's helped enormously! (as it it did helping the flight engineer doing in-the-field cylinder and magneto changes - usually planned!)


No generalisation is wholly true, not even this one.
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