04-05-2014, 11:48 PM
(04-05-2014, 03:23 PM)Pterodactyl_imp Wrote:(04-05-2014, 09:42 AM)Dakota_imp Wrote: On carburetor vehicles that I've owned, popping on engine deceleration was always due to a lean condition and fixed by fattening up a little.
This popping can also be caused by an exhaust "leak" in that on deceleration a low pressure in the headers will cause air (oxygen) to be sucked in through the gap/hole and then re-ignition can occur in the headers. This can occur at lean or rich mixture settings. CB4me, are your new headers perfectly sealed?
Cheers
I'm pretty sure the headers are sealed. The old gaskets seemed to provide an excellent seal and were difficult to remove. I could feel the new gaskets (hollow copper colored rings) making the seal when I tightened the nuts.
Speaking of which, several members have reported finding the header nuts loose on their stock bikes. A couple of mine were barely more than finger tight.
I'm going to recheck everything before today's ride. The popping sounds like its coming from inside the exhaust but it's very infrequent and very mild.
I'll have to look around for a dyno shop between Baltimore and York PA when I save up some money. Just maxed out my credit on a new driveway.