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G 20 engine help

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Old 07-28-2014 | 06:19 PM
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Default G 20 engine help

Hi guys,
I have a G 20 super tiger engine. I messed up the low mixture control valve. I closed it all the way and do not know how much to open it. If anyone can tell me how much to open it I would really appreciate it. Thanks!
Old 07-28-2014 | 08:58 PM
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You'll have to retune because the optimal setting is different for each engine. Start with 1 1/2 turns out and see what that gets you.
Old 07-29-2014 | 07:19 AM
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Get a long piece of full tubing on the fuel nipple. open the carb about 1/8th,. blow into the fuel tubing and open the needle bit by bit until you can just hear the air coming through the carb. Now open the needle 1/8th of a turn more. That will give you a starting setting that the engine should run on.

The main needle should be screwed in while you do this.

Last edited by j.duncker; 07-29-2014 at 07:21 AM.

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