Home › Forum › Ask A Member › QD-10 that runs horrible. Expert advice needed. › Re: QD-10 that runs horrible. Expert advice needed.
I watched the video and you are not adjusting the high speed needle valve while under load on a boat. To adjust the HSN, loosen up the bracket that connects to the upper rod and use a screwdriver to adjust the valve. The motor has to be running wide open and then start to adjust the HSN, starting off about 1 turn out from seated. Turn the needle about 1/8 of a turn and wait for a response, then another turn until you hear the motor smooth out. Keep turning the screw adjustment in until it leans out (slows down or sneezes) then back out about 1/4 of a turn. Fasten the adjustment bracket back on the needle valve with the upper rod somewhere in the middle of the throw, just in case you have to make further adjustments down the road. Now if you keep turning in the HSN valve and nothing happens, then you have a plugged up high speed circuit somewhere. I am sure others will chime in and give their opinions so be patient and do some research. Pl
PS….I have adjusted motors in test tanks and you can get close, but there is nothing like being on the water, in a boat to do the final adjustments.