Has anyone sheared-off the throttle control arm on the front gear housing (yes, on the engine)? I replaced the old shifter with a new Telemorse shifter, and a few weeks later caught (over-pushed) the shifter when stepping down from the seat, ripping the link (at the other end of the cable) right off the engine. 2 Questions: Do the old shifters have a hard stop in them (thru mine away)? And, has anyone removed the gear housing cover and/or replaced the throttle input shaft? The manual is not clear on how to take it apart.