Gas mileage

[Fourks]

I think it’s plausible that a weak link in that spark side of the system could cause the plugs to not fire at their full potential and not burn the fuel efficiently.

wouldn’t one also have codes for catalytic efficiency or random misfire?

[Fourks]

Might be worth trying a new O2 sensor. I don't see that Honda monitors for slow O2 response.

[jm21ddd15]

Not sure about what fuel you use, or is available in your area, but up north we have a "winter blend" of fuel, that the government make the fuel companies run, supposedly, for smog or pollution crap. And it does cost us more than the summer blend. Except for the seasonal "holiday price scams".

[tenxxx]

Don't forget about the cheap gas thats going around. While on the road from Ohio to FL, I watched the milage a bit.
One tank of gas was crap. It came from Marathon.
I try to get my gas at BP or Sunoco but when your on the road it aint that easy.

[blackmetoc]

Don't forget about the cheap gas thats going around. While on the road from Ohio to FL, I watched the milage a bit.
One tank of gas was crap. It came from Marathon.
I try to get my gas at BP or Sunoco but when your on the road it aint that easy.

I used the non-ethanol down the street. I have since I have had this bike.

[Fourks]

So, I used to get, maybe 200 miles, giver or take a few from fill up to gas light trigger. Now I am getting 175 to 180 miles. I have changed out the air filter a couple times through this, a couple sets of tires from regular, to darkside and back to regular. I have around 55k on it. Is it a computer setting? Has anybody else seen this drop in mpg? It is not horrible, but it is a question to ponder.

Wonder if it could be a slow responding O2 sensor? Did you see the drop when you went dark, and has it improved going back to the correct tire? Also, have you added any assessories or increased the windshield height?

[blackmetoc]

Wonder if it could be a slow responding O2 sensor? Did you see the drop when you went dark, and has it improved going back to the correct tire? Also, have you added any assessories or increased the windshield height?

I saw it when I went dark, it never improved when I went back to a MT

[unsub]

Look all, take this for what it is but I happen to come across this youtube video. The presenter is somewhat eccentric but he explains in a little detail why a poor battery could cause a drop in MPG. This was completely coincidental but seems to confirm the the information I had gathered from other sources.

Again remember, eccentric - youtube - internet, so don't shoot (me) the messenger. This is all for purposes of civil discourse and of course to help the OP.

https://youtu.be/rEDkdPJHScA?t=165

[Fourks]

Look all, take this for what it is but I happen to come across this youtube video. The presenter is somewhat eccentric but he explains in a little detail why a poor battery could cause a drop in MPG. This was completely coincidental but seems to confirm the the information I had gathered from other sources.

Again remember, eccentric - youtube - internet, so don't shoot (me) the messenger. This is all for purposes of civil discourse and of course to help the OP.

https://youtu.be/rEDkdPJHScA?t=165

a little eccentric is being to kind. He does have a shirt with his name on it, so must know what he’s talking about:-) not even using the correct battery tester which is a carbon pile tester. The battery starts the car, the alternator powers the cars electronics. The battery is out of the loop.

[tenxxx]

If it were the battery, it would have to be so bad that it wouldn't start the bike.
While running, the alternator charges the battery and runs the electronics.
The battery isn't out of the loop, but its just sitting there absorbing any sudden spike in the system. Be it a drop in voltage or a rise.
My alternator puts out 14.4 v at idle with head lights, tail lights and what ever else.Thats a load of 3 amps or more.