Which float method

[Antman]

I've just been reading the Haynes manual re: checking floats.They say to invert the carbs up side down then check.

However I've always held carbs vertically and  gently rocked the floats onto the needle and seats.

I would suspect following Haynes  would lead to a rich mixture/ flooding.

Any thoughts

[Jaydee]

I always do the floats with the carbs upside down. The trick is to have the carbs at enough of a tilt so the weight is taken off the actual float. The floats tang is making contact with the float needles pin without pressing it in. Holding the carbs vertically, gravity will always have the float needle (within it's seat) falling against the tang and would mean the needle is not closing the circuit. A closed positioned needle is the base point you use to set your float heights from.