Topic: What does it mean when the air screws have little to no effect?

[Kenzo]

2. Installed new O-rings in the castings that hold the carb hoses to the head. They were as hard as plastic, and leaked vacuum a lot.

These O-rings Hondaman speaks of can these be fuel safe O-rings sourced from an auto parts store or something special for the application?

Thanks in advance,
Kenzo

*edit* Maybe I should check my full gasket kit I purchased...maybe they are in there.

[flybox1]

you'll want viton or buna-n.
both will hold up well in fuel(viton just has a higher heat tolerance)