Re: Vespa Grande Head Leak

Dirty30 Dillon /
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Did you buy the DR used? An over-aggressive porter could blast through the third stud in the exhaust and cause all sorts of issues.

Barring that, I have lapped decomps and had them not work out.

But I will agree with Graham, putting a double nut on the decomp hardware removes that common problem with the bottom head bolt coming lose after heat cycling

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