Thanks for your response. They’re very much the same. It’s just a matter of setting the screw that contacts the cam that rotates to speed up the engine. I need to find the cause of spewing fuel from the float vent that has resumed after a period of proper function. It could still be the needle and seat, even though the needle appears to move freely. Removing the n and s and blowing through the opening gives easy movement. I guess I’ll play around and perhaps get new stuff. I’ll have to test the float itself.