I ride at about 500' above sea level here in the pacific northwest and I run a 170 main jet and a 50 pilot jet. I checked the plug and it was a nice tan color which means that its running just right. If you ride at anything above 4500' above sea level you may need to try a different combination of jets to get the correct results. Some guys that have this set up have been moving the clip on the needle up one notch. I don't find that neccessary for where i ride.
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