Trim Cylinder Piston Dust Seal

[Captn Dave]

Does any one know if the later 90's Yamaha tilt cylinder piston dust seal fits the early 90's engines? This is for a 150. The parts diagrams for the early 90's engines doesn't show a replacement seal and o-rings for the tilt piston end cap.

[TownsendsFJR1300]

The guys that will know, will very likely need YOUR year and EXACT model # as T&T units vary widely.

(Haven't seen a unit here that another seal wouldn't fit from another unit)..

[boscoe99]

Need a model identity. Need a model identity. Need a model identity.

Is this even for a Yamaha model of some kind?

Why so hard to provide a model? Same at all forums. No one wants to say what model motor they have? Is it top secret information?

[walleye1]

Sickum Boscoe

[Captn Dave]

Need a model identity. Need a model identity. Need a model identity.

Is this even for a Yamaha model of some kind?

Why so hard to provide a model? Same at all forums. No one wants to say what model motor they have? Is it top secret information?

I wouldn't have posted it if it wasn't a Yamaha. I don't have the model number. There is no ID plate.

[boscoe99]

Some folks come here asking about Mercury or Mariner branded motors that were made by Yamaha.

Can you tell us what diagrams you have been looking at?

Here is a link to a 1991 150 trim and tilt unit and it depicts the O ring and the seal for the trim cylinder cap. Items 29 and 30.

1991 P150TLRP Yamaha Outboard POWER TRIM TILT ASSEMBLY Diagram and Parts

[Captn Dave]

Some folks come here asking about Mercury or Mariner branded motors that were made by Yamaha.

Can you tell us what diagrams you have been looking at?

Here is a link to a 1991 150 trim and tilt unit and it depicts the O ring and the seal for the trim cylinder cap. Items 29 and 30.

1991 P150TLRP Yamaha Outboard POWER TRIM TILT ASSEMBLY Diagram and Parts

I apologize. It's for the tilt cylinder. I just edited my initial post to reflect that.
I'm using basically the same diagrams but you'll notice that the dust seal and o-ring isn't listed.
I'm thinking the later 90's engines, which does show them, could be used.
I'm also assuming the the piston assembly can be disassembled.

[boscoe99]

I cannot find the parts used for the tilt piston. Maybe rodnut will wake up some time today and ring in on this matter.

[99yam40]

everyone can guess all they want, but without a Model # of what you are working on, there is not much can be verified

[Captn Dave]

everyone can guess all they want, but without a Model # of what you are working on, there is not much can be verified

Take any model number you want for a pre 95 150 HP engine.

[99yam40]

looks like anything from 86 to 96 will work
6G5-43810-00-00 YAMAHA PISTON SUB-ASY TLT

[Captn Dave]

looks like anything from 86 to 96 will work
6G5-43810-00-00 YAMAHA PISTON SUB-ASY TLT

Yup, that's the piston. Now I just need the P/N for the o-ring and dust seal for the cylinder end cap that is shown in the photos.

[99yam40]

Well since they do not show them separately, there is not a part #.

you can try to take yours apart and measure.
then buy parts for a newer on and see if they fit

[scofflaw]

wiper seal is part of the cap. The 2 o rings in there are
6e5-43861-00-00
6e5-43862-00-00

[rodbolt17]

and sometimes you can go to a different year that uses the same unit and find it.