Theres a screw in the float bowl....counterclockwise open the drain a turn or so... fuel out...do this with fuel tap off..
Close the drain, open fuel tap to refill....close the tap... and repeat the drain process as above...
You can also tap the bowls gently when they are full to dislodge any muck.
Close the drain, open fuel tap to refill....close the tap... and repeat the drain process as above...
You can also tap the bowls gently when they are full to dislodge any muck.