2019 RMZ 250 mapping couplers

7/6/2020 7:42am
Could someone put in plain english the benefits of the white, gray, and black plugs for the rmz250? I know white is the leanest. Is black the richest and gray stock?
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Factor E
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So Cal, CA US
7/6/2020 7:49am Edited Date/Time 7/6/2020 7:50am
Different maps to suit your riding and riding conditions
7/6/2020 7:57am
Factor E wrote:
Different maps to suit your riding and riding conditions
I guess I am looking more for what each coupler does in terms of the ecu, ignition, and fuel delivery.
CLT809
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Little Elm, TX US
7/6/2020 9:16pm
White is -4% leaner, white with black tape is stock, gray is +4% richer. No ignition timing changes. Personally, I think the gray gives a bit more overrev, and the white one is better down low.

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