1987 yamaha 150

[dpendzic]

when i go to put the engine in reverse it works fine when everything is cold, but after a few minutes of running all it does is grind---goes into forward fine all the time but sometimes i have to push the shifter handle down of neutral to get it out of forward---could this be a linkage adjustment somewhere???
thanks--

 

[dpendzic]

Re: 1987 yamaha 150--shifting problem

Re: 1987 yamaha 150--shifting problem

is the lower unit shifter hydraulic clutch driven?

 

[rodbolt]

Re: 1987 yamaha 150

check the lower unit drain magnet for metal and carefully inspect the shift shaft,pre 1995 motors used a plain steel shaft that was prone to rusting away.

 

[dpendzic]

Re: 1987 yamaha 150

thanks rodbolt!!--does the power head and lower unit have to come off to replace the shift rod?

 

[rodbolt]

Re: 1987 yamaha 150

powerhead and lowere unit.
it aint fun neither.
before ya break any bolts post back if it appears the shaft is bad.

 

[dpendzic]

Re: 1987 yamaha 150

after using the engine only in forward for the rest of the summer i hauled it out yesterday. I took some cowlings off but could not observe the shift rod--EXCEPT for about a 1/2" space above the lower unit--i saw a 1/8" dia. rusted piece of rod--was that the shift rod???

 

[rodbolt]

Re: 1987 yamaha 150

yep.
and unfourtunatly it used to be about1/4" in dia.
now the fun and games will begin.

 

[dpendzic]

Re: 1987 yamaha 150

Isn't that the truth--already snapped a bolt off on the lower unit---put kroil oil on all the bolts and will let it soak for a few days.

 

[rodbolt]

Re: 1987 yamaha 150

kroil wont help. in fact kroil burns when ya hit it with the oxy/acytelene.
you will most likly need the oxy rig and a good set of Dewalt(or equivalent) bullit point drill bits.