1992 Mercury 75HP. will start, but if left in neutral, dies. i've tried raising it to a fast idle and pushing the choke in, but neither will keep it running in neutral. in order to keep it running, i have to shift into gear almost immediately after starting it up. if i don't, or if i shift back into neutral after having it in gear, it dies. but it has no problems running while the throttle is down. any thoughts??
