Bill is right. The mount on my 1981 model is visibly shorter than some of the newer boats. I haven't measured the difference. No way would my short-shaft Honda lock down, even with a board extender. It dragged on starboard tacks. I have since added an adjustable mount. Doug Kelch can lock his Honda down on Seas the Day, #310. Bill Riker M15 - #184 Storm Petrel -----Original Message----- From: montgomery_boats-bounces+wriker=mindspring.com@mailman.xmission.com [mailto:montgomery_boats-bounces+wriker=mindspring.com@mailman.xmission.com] On Behalf Of BILLAMICASR@aol.com Sent: Tuesday, August 17, 2004 9:18 PM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: Yamaha 2.5HP on M15 w/fixed mount? John, When you can, please measure the distance from the hull to the outside edge of the mount. Could be there is a small difference in some of them. I know on the P-15, it works the same way, some can some can't tilt & lock the motor. A measurement may help to find out the difference. Bill _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats