I have a Polaris Trail Boss 250 4X4, That I have been fighting for a week to get the carb adjusted right. Just figured out the problem earlier. ETC. I have the carb adjusted decent, but the problem is it backfires coming back down from a rev up. SO I hold in the over ride button, and the idle smooths out, no backfires after rev ups. I tried both ways probably 15 times each. I am positive its the ETC. What I want to do is Bypass this switch, but I am not sure how to go about it. Any help would be appreciated. Thanks