Fuel Mixture Screw And Mileage
Hey guys, got a question about the fuel mixture screw and mileage.
I ran out of gas the other day, off a full tank, at 177 miles, so I've determined on more than one occasion that I can generally go about 180 miles before I have to hit reserve. I would note that I've never computed my mileage by comparing miles ridden to gallons put in.
If internet data is accurate, there are 5.6 gallons of "usable" gas in a full tank before switching to reserve and it seems to me that 180 miles on a brim-full tank of gas is pretty shitty mileage, like in the low to mid 30's or so. Yeah, I'm big with a lot of wind resistance, but my general commuting cruising speed is around 60mph so it's not like I'm pushing things.
Anyhoo, I'm wondering if, even though the bike runs good, I have my fuel mixture screw set a little too rich and am wasting gas and subsequently hurting my fuel mileage. I also have some black soot buildup on a reflector I remounted just aft of my tail pipe.
I did the .22 Mod/Slide drill a couple of years ago and, if memory serves me correctly, I set the screw out 2-1/4 turns.
The thing starts and runs fine as far as I'm concerned, but do you guys think my mixture's too rich and I could go back to maybe just 2 turns out and save some gas?
Pardon my ignorance on such matters. Just wanted some more knowledgeable opinions before I risk breaking my choke cable connector because I'd rather just rotate the carb to do this if it would be a good idea.
And, no, I probably won't spring for one of those tools or knobs to reach the fuel mixture screw as it sits. And, yes, until I bring the thing in to strip it down this Winter, I'm too lazy to go to the trouble of taking the spark plug out right now and diagnosing it.
Any advice or thoughts would be appreciated.