Gas Mileage Help please

all hardpacked trails in Munising. I even tried to not accelerate too fast and held a steady speed of about 45 the whole time. I got about 7mpg on the way back when I did that.
 
Your cruising RPM's should be a good indicator of what you should expect for milage on any given day. As stated by others if the conditions are loose/heavy where the machine has to work/higher RPM's = worse milage. If it's hardpacked/tight should see a lot less RPM's during cruising and = better milage.
 
Here are what my carbs are set at. I haven't taken it in yet. Might try to adjust it myself. Screws are set to 1.5 turns out, jets are stock size, float height at 14mm. Any suggestions where to start?
 
I may be a little behind on this post, but we had that gas milage problem on a 98 Vmax, and Frank at Meyer yamaha in Ishpeming walked me through the adjustment to the needle over the phone. It involved moving that little nylon washer a couple notches. It brought the milage up to 11mpg. I could look up the adjustment if you are still interested. Or call Meyer and ask for Frank the mechanic. He was very cool and helpful. Good luck.
 
snomomikey said:
I may be a little behind on this post, but we had that gas milage problem on a 98 Vmax, and Frank at Meyer yamaha in Ishpeming walked me through the adjustment to the needle over the phone. It involved moving that little nylon washer a couple notches. It brought the milage up to 11mpg. I could look up the adjustment if you are still interested. Or call Meyer and ask for Frank the mechanic. He was very cool and helpful. Good luck.
Click to expand...
post it sure,probably leaned out mid range some,careful tho...
 
I had the same problem. I was doing a little better than 6mpg, i was getting about 8-9. What i did about 8yrs ago at the advice of this site was to put a thinner headgasket on, carbon tech reeds, and drop the needles ( raise the clip) a half notch. You have to run premium gas after this but i always do anyhow. I not only get close to 11-12 now it really woke the sled up. I got all my parts at Xtreme Powersports (PH 518-758-6507). Im not sure # is current but they do have a web site. Just make sure the rest of your stuff is in order also like the advise above.
 
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