GR650 terrible metalic engine noise

[Super]

Thanks Jorgeno. getting a little better everyday. The seller of my GR said it.. "had a little ticking noise at the top of the engine".. which I took meant a little valve adjustment. It looked near mint and had only 12,000n miles on her so it sounded reasonable. So I did A LOT of maintenance work on it first before I had her up and running. Then, when it did finally run, a LOUD knocking, and the rest is history.

The lesson learned is two fold: 1) Don't always trust the previous owner unless you know them. And 2) Make sure the engine runs before you do too much extra work on a bike.

Anyway, if I can help, let me know.

[eil]

1) Never trust the previous owner unless you know them.

Fixed that for you.

[Super]

Thanks, eil. I guess sometimes, when I see a nice bike I like a lot, I just give people the benefit of the doubt that they're as honest as I am. It's worked before...until this one.

[rustybronco]

There used to be places around who would hard chrome crank journals and regrind them to size. Although it's probably easier now-a-days to find a used crank and rods and slap them in.

[chef1366]

Looks like oil starvation.