Hey, yeah my bike has a few mods (listed in my signature) and other than that I have a Twin Air Air Filter.. Theres a little popping on deacceleration while the engine is still not warmed up and theres very slight or no popping after the engine is at operating temperature. I don't really care about this wastage i'm just wondering if I can get my bike performing better.. Thank you so much for your replies guys! I really appreciate it!

 

Let your spark plugs be your guide. If they're heavily sooted, you are running a bit too rich. If they're dark gray, leave it alone.

 

Totally depends on what they are measuring. I would actually say that you were wasting 100% of your fuel since your bike was not moving. Even the most perfectly tuned engine is only about 30% efficient at converting fuel energy into motion.

It's why I like nuclear power, but that's another topic.

The only good information is that the 25% waste was constant across the rev range points. If you were on a dyno that allowed you to load the engine to different throttle settings then you could conclude some things about your PJ and MJ but 2500 is only barely off idle and likely still in the PJ anyway.

 

Won't be long before you need a permit to fart down there. Grrrr