Hi Gadge, I'd just finished a reply to Harold when you deleted that post. Here's the reply:

I think that will be a Model 286h77 - there is no 286h7.

Here is the Illustrated Parts List:
http://bsintek.basco.com/BriggsDocumentDisplay/Z6klsCVJ1DajI.pdf

Here is the Operator's Manual:
http://bsintek.basco.com/BriggsDocumentDisplay/flmvwHX-nfBhU7y.pdf

The engine was built on 6 May 2003. It is a single cylinder Intek of 470 cc capacity. If it has a Walbro carburetor it will be a model LMT (they were also built with Nikki carburetors).

The maintenance operations on the carburetor occupy a substantial amount of space in the single cylinder Intek manual, which you can download from the manuals section (subscription required). Here is the basic maintenance instruction:
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