Originally Posted by bobkyle2
Witch it idleing.... Get a pair of well insualted chanell locks and gloves.. and pull a plug wire off one by one... if the idle dont change when you pull a wire off.. that means that is the cylinder not running.. i would start on that side that has the colder manifold
I started the motor up and let it idle then i started pulling the plug wires off on each cylinder to see if there was a change, Cylinder 1 & 2 made no idle difference and the rest of the cylinders made a huge idle difference. I figured this had something to do with the coil pack, so swapped that out today and nothing. Starts up fine and when the motors cool it idles pretty good. Then as i rev it a few times and get it up to temp it starts doing its harley sound kinda of a consistant putter? Also when driving in 3rd gear and up under throttle i her a funny noise kinda of a pinging squeal? What next compression test? Only thing i have not checked is fuel pressure, will try that later this evening.
Any thoughts? What are signs of low compression, gunked up plugs?