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Thermos O flask

which jd needle for yz timed wr?

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HI,what JD needle do you use for your WR if its YZ timed?

As the instructions say the blue one for WR and the red one for a YZ.

Whats the difference between the needles?

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The blue needle is richer than the red. I'm not YZ timed, but I usually use the blue below 50 degrees F from sea level to about 3000'.

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An update on the needles,had the BLUE 3rd clip one in and it was too rich and killed the plug,put in the RED 3rd clip and new plug and hang on!!:eek: starts first kick and never needs the hotstart.

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An update on the needles,had the BLUE 3rd clip one in and it was too rich and killed the plug,put in the RED 3rd clip and new plug and hang on!!:eek: starts first kick and never needs the hotstart.

What main and pilot are you using?

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