bmwtech

alright here it goes i would like to say first off the i appriciate any input any one out there may have. i have an 05 aquatrax non turbo and it seems to have a missfire of sorts or an ignition break down. it runs at idle fine but at 3/4 to wide open throttle starts to jerk and loose power (like a missfire). i took this think to honda and they told me it needs a tps, sounds resonable if it has a dead spot in the tps. well i was told that you have to buy the complete throttle body assembly to get this tps. this ski has 450 hours on it, ive only owned it a half season. my first question is, does anyone know where i can get the throttle bodies? or does anyone know anything more about this problem?