Repowering

[Meff]

I am looking at repowering a 1988 23cc. It currently has a 1991 Yamaha 225v6. I am looking at Honda, Yamaha and Susuki. Talked with Jason who recommends the Susuki. I think I have a pretty good price for a 250 to include removal of old engine and complete replacement of rigging parts Binacle control,throttle and shift cables, key assembly, main harness Buzzer assembly and harness ss prop tach and harness $15,500 plus tax. I believe that the Yamaha 225 weighed 500lbs and the Susuki weighs 580 lbs . I am concerned that the engine might be to heavy especially the problems we have backing down in a chop. At 100 lbs less it was bad enough. The other item of concern is the servce and maintence which I hear because of the limited service available is very high. Would appreciate all info posssible positive or negative. Also what is the going price for the old Yamaha??