Re: I hate 4 Strokes

[amuller]

The best fix for this is to lap the carb flange, both sides of the plastic piece, and the intake flange on a surface plate, or some reasonable substitute like a table saw table, piece of plate glass, or whatever. Sounds as if that would not be very convenient in your situation. Filing can work but proceed with great care. Look the plastic piece over carefully. A new gasket made of some reasonably soft material may work, may be conformable enough to seal, and sounds like it may be working for you.