Yamaha 150 4 Stroke stalls when shifting

[ksgoldman]

I have a 2006 Yamaha 150 4 Stroke (on a Striper 2101DC) that was purchased as a leftover in the Fall of '07 and used for the first season in '08. The motor (and boat) run great except for the fact that if I shift slowly from neutral to forward or from neutral to reverse, the engine stalls. Suffice it to say that when docking the boat, the constant stalling is not a good thing. My dealer has checked out the engine and says that I am "granny shifting" the engine which is not good for it and that I need to shift with more authority and keep the revs up. The dealer says that there is a shift interupter switch that cuts out half the cylinders when shifting and that by shifting too slowly I'm not maintaining sufficient RPMs to prevent stalling. Another post I read said that there are sacrificial dogs in the shift mechanism and that by shifting too slowly I am wearing them out prematurely.

It seems counter-intuitive and that I should be able to shift slowly without stalling (especially when coming into a dock).

Has anyone else had this same problem?

Thanks,

Ken Goldman

 

[cousinabe]

Re: Yamaha 150 4 Stroke stalls when shifting

they are all correct.
you have to shift that motor with authority.

 

[rodbolt]

Re: Yamaha 150 4 Stroke stalls when shifting

yep
respect that athor o tie or you will be replacing the clutch and gear set.
you dont have to rev it but make your shifts firm and quick.
you DO NOT want to hear any chatter when shifing unless you wish to donate to your local techs kids college fund.
if so I am in wanchese NC .