after the first failure (2x limit, 3x after rev) i got a rebuild kit from napa and rebuilt it.
now the carb is leaking fuel from somewhere right above the accelerator pump. it increases (obvious dripping) when the accelerator pump gets used. took it (the accelerator pump) apart again, tightened the crap out of it, still leaking. just a drip-drip-drip but i suspect its related to:
a second failure with even higher HC levels.
i have tried to use a mirror to pinpoint the source but still havent been able to find the exact source. it seems like one of the check valves is right there?
i've turned the idle mixture screw all the way in, because turning it right made it idle lower. it bottomed out right about where it starts to misfire.
is that the right way to try and lean the mixture?
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