gas milage

[FJmonkey]

So my question is of riding style, does he keep his bike spooled up or does he lug it around ? 
George

You can ask Steve (MoparMan) this question. Before I put the UNI's and Suppertrap on we tested my alleged good gas mileage. We filled up at the same time and rode some of the good roads in Steve's nick of the hills. later that day we filled up again and I used less gas then Steve or Mike. As far as lugging it goes, Steve is the faster rider and Mike tends to fall back in the twisties. I still got better mileage than Mike. I guess it will get even better when I switch to 18/38 vs the 17/38 I have now...

[movenon]

I believe that you are getting the good mileage . I am not a MPG kinda guy but a curious one in general (Curious George, the other monkey).  I have a pet theory, its not so much the speed,  its the RPM you run at. I know, speed, drag, weight and all that stuff. In general I am just talking about the sweet spot in an engine.   On an engine test stand most motors get there best GPH figure running at peak TQ rpm. Which for an FJ would be up in an area where most probably don't cruse.
I know there is a world of difference between a test stand and the real hard cold windy world. I am no engineer just thinking out load. Don't want to start any digital fires  .
You might get lower mileage with an 18 tooth front ? Or never get out of second gear .  That said, I have 18/38 and love it for the comfort level. Suits my style of peddling.... 
George

[jscgdunn]

Milage is around 200KM per tank on both our 92s.  On our 84 it is better as gearing is 17/38.  Notice quite a difference between myself (6'3 230) and my sons who are < 6 feet and 175.  Cannot say I have ridden it sedately for a full tank full....after all the throttle is meant to twist is it not...and milage is inversely related to twist...I read it in refereed journal somewhere?

[movenon]

If I could stop working on mine long enough I could tell you my mileage is.... FJ's are not MPG machines. I just fine pleasure in efficiency and knowing the limits. Gas stations all over the country (except parts of Nevada at 2:00 AM) pretty lonely out there.......
George

[Arnie]

My normal mixed city/hwy riding gets me 150km to half tank, 250km to E on gauge, and 300-320km till I have to switch "reserve" ON.  This translates to 93, 155, and ~190 miles on my '91 with over 135,000 kms on the odo.  I have UniPods, slip on mufflers, and normal gearing but I also have a 7" high windscreen extension and a large tail pack (and I'm no lightweight).

Are those of you who have done plug chops compensated for the 'wasted spark' effect on color?

Arnie

[aviationfred]

I have not ridden mine since February, I have changed the sprockets to 18/38 sprockets, The head is being rebuilt. Last time I checked milage I was able to do 43 MPG. I have a stock airbox with a UNI filter and had a full SuperTrapp exhaust. The sprockets were 17/42. I am thinking the MPG should go up a couple of points with the sprocket change and the fresh head. Not thinking the WMP exhaust will make much of a difference

Fred

[baldy3853]

mean 38 MPG. I think Mark goes 38 MPH.

exactly you hit the nail on the head Mike 

[Sabre093]

Got my best mileage to date 300 kms and when I filled up I put 17.54 litres in it to re-fill

[aviationfred]

On my way back from Colorado to Kansas. I logged a leg of 233 miles, and put 4.4 gallons of fuel in the tank. 52.95 mpg. 120 miles of that was mountain roads and the remainder was super slab. I do have the tall gearing, sprockets are 18/38.

I have to give special thanks to Randy @RPM for the head rebuild back in May. I put 1938 miles on the bike in 4 days. The bike ran great, even in the high (9000ft+) elevations.

Fred