Can someone tell me if my old 18 'rude is supposed to have any safety locks like my '75 9.9? The nine-nine cannot be pulled when in gear and the throttle cannot be advance beyond start when in neutral. The 18 doesn't seem to have any of this and I'm wondering if maybe something inside is just not working properly? The other night I started it wide open in fwd and ended up on the bottom of the lake. My own stupid fault but I'm so used to the 9.9.