Help! Where do these go!?

[Guest]

Hey guys, I hope that you are all well. I'm in the middle of my first part engine rebuild. I took the cylinders off to check pistons etc. Any way, I've put the cylinders back on, the head back on top of that. However, I've come across these small, orange flexible washers (seals?) that look like they are hugely important

I have 4 of them and the bike is a 1985 GS650GT. I can't for the life of me find reference to them in my manual... Where do they live?
Pic for reference. Thanks in advance.

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[uk gs nut]

Picture does not work, but I would think they are oil gallery seals that go in the cylinder head gasket. The 4 outermost cylinder studs. Also the cylinder head washers under the nuts are not all the same, 4 copper washers on outermost studs to seal the oilway.

[Sandy]

There four nuts on the outside right and left that secure the cylinder head. The washers go there and act as a gasket and are usually reusable if not damaged. They are the nuts that are outboard of the valve cover.

HA! Beat me to it. Anyway, what he said.

[Peteyboy]

Thanks chap, hope this works this time?

[Peteyboy]

Excuse my idiocy....for clarity, they live underneath the head gasket? I.e put them on the 4 outer studs, then put the head gasket on and then the head on top of that?
Thanks again in advance.

[Steve]

The headgasket should have holes large enough to center those gaskets where necessary.

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[Nessism]

Did you purchase OEM Suzuki gaskets or some aftermarket gasket kit? If aftermarket, it's hard to figure out where things go sometimes. I agree that those look like stud seals that fit inside holes in the head gasket. Just guessing though.

[Peteyboy]

All sorted now, massive help all, thankyou. They did indeed go in the larger holes in the (aftermarket) head gasket!