So today I cleaned out the fuel line, turned the AF screw clockwise 1/2 turn (can't remember off hand if that is richer or leaner), and increased the idle a little. Figured I would tweak the free things first before springing for a new fuel filter. The manifold is metal coming off the carb and I couldn't find any squirrel condoms.
It's a yamaha btw.
And last but of course not least I'm running 10w30


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers