Tilt Hinge Grease Point

[The Razor]

Hi,
I know this is going to be a dumb question but .... can't figure out where to grease the tilt hinge on my 15hp Yamaha.

I've uploaded a diagram from the service manual showing the grease points. Are the grease nipples supposed to be where the 2 small holes are, below the screws?

Cheers

[robert graham]

Looks like someone replaced the 2 grease zerks with a couple of screws....get some screw In zerks, remove the 2 screws and put the zerks in there where they're supposed to be....and then pump some grease in each one now and then.....

[kdgrills]

Just a guess...

My F25 has no zerks there either. I need to use a needle nose adapter in a small hole on either side.
Perhaps the small holes beneath the philips screws are your grease points?

[boscoe99]

The motor does not come with zerk fittings at the tilt hinge. It comes with two screws. Remove screws, add grease, reinstall screws.



Let the parts catalog be your friend.

[The Razor]

Thanks for the replies everyone. So I've managed to apply enough grease in the screw holes that boscoe suggested, to the point where a small amount of grease is coming out the side of the bracket. A bit slow going without the proper applicator. What's the attachment you've got pictured in your post, boscoe? It looks similar to the needle nose adaptor kdgrills mentioned, but with a rubber head.

Also, any tips for removing the old, perished grease. Would it be worthwhile getting some WD40 in there to loosen it up, or will getting some new grease in there and working it in be enough to shift it?

Cheers

[boscoe99]

Rubber tipped grease gun nozzle. Having warm weather might help. Maybe trim the motor to different positions while applying grease.

[panasonic]

Careful use of a heat gun on the pivot shaft between the mount brackets to soften the old grease up. Heat the center part of the exposed shaft, where it is quite rusty, and let the heat conduct outwards through the joint. Not to much heat as there are plastic bushings in there.

[robert graham]

Wonder why Yamaha chose not to have grease zerks in these locations that obviously require greasing?

[TownsendsFJR1300]

Wonder why Yamaha chose not to have grease zerks in these locations that obviously require greasing?

I think I'd be drilling and then inserting zerk fittings in those bolts.

Then, no R&R, just hook up a grease gun...

[boscoe99]

Wonder why Yamaha chose not to have grease zerks in these locations that obviously require greasing?

Might be cost. They sell the screws for less than a zerk fitting. Presumably the screw costs them less.

Does it really matter if one wants to grease the motor? Either configuration should work.

On the other hand, I dareguess that the majority of motor owners don't bother greasing their motors anyway. Might not matter to them either way.

[walleye1]

Drive in zerks are cheap

[panasonic]

Drive in grease zerks are cheap...but are crap. Difficult to get out when they get snapped off. They are very hard material, at least aircraft ones, they tend to spin when trying to drill them out...need cobalt drill bits.
Screw in type are the way to go.

[walleye1]

y will you snap them off?

[panasonic]

No, not intentionally, but i have broken off a few over the years. When you have to grease probably almost a 100 zerks on a aircraft landing gear and some are very difficult to get at...some are bound to get broken off over time. The gear is greased quite often...so broken nipples to be drilled out.

[boscoe99]

No, not intentionally, but i have broken off a few over the years. When you have to grease probably almost a 100 zerks on a aircraft landing gear and some are very difficult to get at...some are bound to get broken off over time. The gear is greased quite often...so broken nipples to be drilled out.

Some of those fittings are so difficult to get to and it results in the grease gun putting a side load on the fitting. Being used so frequently they fatigue and become prone to breaking.

What is the greasing frequency?