yes, its a very quick action when i pinch it at full throttle to check the high end, but i heard you can also pinch it at idle and if it turns off in about 3 seconds AND transitions fine to full throttle your low end should be fine. any info on where i should pinch the to test the low end? between the high speed needle and the carb or between the line from the tank and the high speed since its a remote high speed needle?