Installing new petcock, question on gaskets

[oldgsfan]

So, I'm putting a new petcock into the tank of my GS850G - Never done this so I'm following the tutorial on BassCliff's site (of course!) -
anyway, the two bolts holding the old petcock had little washers that look like they were gasket washers, not rubber, but they're so old I can't tell. Anyone know if I can just replace these with rubber washers?

Also, the tutorial suggests putting 'rubber' grease on the petcock gasket. I have some regular old hi-temp bearing grease. Will this work? I don't know what rubber grease is, but I'm heading to the parts store so I'll see if there's anything there like that. Just thought I'd ask.

Oh, and by the way, I ordered this OEM petcock from Bike Bandit. It came with the gasket, but not knowing this, I had ordered a second gasket separately. So, if anyone finds themselves in need of such an item, just pm me - I'll mail it to you..

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[hampshirehog]

Sometimes the fuel leaks, very gently, down the threads on the bolts, sometimes it doesn't. Either use those rubber washers or smear a tiny bit of Hylomar on the bolt threads.

I use Vaseline on those gaskets - never used rubber grease. What you want is the gasket to spread and squash easily so any grease that doesn't rot rubber would be fine.