Need Mantis 20 Tiller Carb adjustment info


Old 06-08-06, 05:36 PM
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Join Date: Jun 2006
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Need Mantis 20 Tiller Carb adjustment info

I have a Mantis 20 Tiller with a 21cc Echo two stroke motor and would appreciate it if someone could tell me how to adjust the carburetor.

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Old 06-08-06, 10:01 PM
repair_guy's Avatar
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Join Date: Apr 2004
Location: Marion,Al.
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A lot of the small engines that you buy today is throw away,you can't adjust the carb's.They come pre-set from the factory.Exspecially 2 cycle engines.And all you can do is clean the whole fuel system out real good an rebuild the carb.(put a new diaphram kit in it)Then if that doesn't do any good,you'll have to spend $35.00-$40.00 on a new carb.
Old 06-09-06, 01:04 AM
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Turn both screws out 1 1/2 turns from lightly seated, then with the engine at full rpm, adjust the high speed screw until the engine reaches the highest rpms, then back it out a bit more until it just begins to flutter. Then run it down to idle and adjust the low speed screw until the engine idles a bit sputtery and allows fast response when the throttle is increased.
Old 06-09-06, 03:37 PM
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Join Date: Jun 2006
Posts: 2
Thumbs up Thanks!

Thanks! I really appreciate your help.

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