Dpm Testing

anyone know how to test dpm runs rich at idle loads up trying to start unless hold throttle wide open , can disconect one vent hose on each carb and starts ok still rich but will idle. cleaned carbs installed new needle and seats. checked primer and pulsation line at fuel pump for fuel. thanks for anyhelp[/b]

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Are you sure you don,t have watar or just bad gas in it? I,d just run some carb cleaner though her and or gas dryers and pr gas 91 octane 93 is better don,t take any thing apart . With temps this year all up and down and wet snow it sounds like water to me or low octane gas. I have a 1998 670 to and she don,t like 87 octane at all . I try to run 93 or higher. this weekend I was sledding and trail maps took us to a gas stop on a lake within a few miles 3 of us had plugs shot . Had to change plugs and ad gas treats to get them flying again.