ZR-1 Net Registry Forums - View Single Post - High idle

secondchance · 02-05-2017

I would start with closing off the air flow at the air horn while idling with a flat piece of hard board (a book, thick plastic sheet, etc...) and see if the rpm drops. If this results in rpm drop, air leakage is at the throttle blade. If not (I hope is the case), start looking for vacuum leak elsewhere.

02-05-2017	#4
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,730	Re: High idle - no vacuum leak I would start with closing off the air flow at the air horn while idling with a flat piece of hard board (a book, thick plastic sheet, etc...) and see if the rpm drops. If this results in rpm drop, air leakage is at the throttle blade. If not (I hope is the case), start looking for vacuum leak elsewhere.