Friend of mine called me up about a recent 75 rpm drop in full throttle static RPM. (poor climb out noticed) Runs perfectly smooth with good mag drops.
To try and remedy this he has:
Had the mags done, timing checked several times by different shops
Full rich mixture going to the stop on the carb MA4-5
Full throttle going to the stop on the carb
Carb heat door wide open.
I told him to pull his air cleaner off and try it. He says it's 20+ rpm lower without the air cleaner on.
I asked if he gets an rpm raise if he leans it during his full throttle static, he does.
Going to pull and look in the carb tomorrow, does anyone have any thoughts?
Thanks
Mike
To try and remedy this he has:
Had the mags done, timing checked several times by different shops
Full rich mixture going to the stop on the carb MA4-5
Full throttle going to the stop on the carb
Carb heat door wide open.
I told him to pull his air cleaner off and try it. He says it's 20+ rpm lower without the air cleaner on.
I asked if he gets an rpm raise if he leans it during his full throttle static, he does.
Going to pull and look in the carb tomorrow, does anyone have any thoughts?
Thanks
Mike