Now at those speeds (80)My mileage falls back in the 30's.Anything below 3k rpms i do good mpg's,Get mine above that and its like driving an ole chevy.

 

a quart every 1200 miles isnt normal, and im sure thats effecting the effiency of your combustion process, but hey, if it aint breaking down or using plugs, keep adding oil ....

 

Here's something you can check pretty easy. Warm the bike up, put a fan on the exhaust to cool it down. Take the pipes off and look at the valve stems. If there is oil on them then the exhaust seals are leaking, no big problem. If not the next step is a little more complicated. Take the carb off and use a dental mirror to look at the intakes to see if they are leaking. If so you might want to fix them as any oil from either the intakes or rings will dilute the fuel mixture and cause problems like detonation, carbon build-up, etc. Hope this helps.

 

you mean it will look like this? lol

 

I ran an EV27 in my '97 Heritage. I also had SE heads, S&S Super E carb, Wiseco ProLite pistons .010 over, Supertrapp 2 into 1 w/ 18 disks, SE ignition, SE coil, SE plugs, magnecor wires. Little 80 ran like a raped ape. I had to drop in a 6 speed tranny for the long rides otherwise I'd have to stop for gas way too often. It would get upper 40's MPG is I could lay off the throttle.....

EV27 is a pretty good cam for low to mid range power, glad I went with the 27 vs the 46 for my riding style.

 

I am far from an expert but with our 80" and the way we ride I got about 40 mpg and some times less and with the 113" the best I can do was about 38 mpg, but usually less. I think it has to do with the amount of weight the bike is hauling and the type of roads, pulling a lot weight up and down hills that requires a lot shifting may burn more fuel than cruising down a flat open highway where wind resistance is the only major factor.

 

That DOES help! I will look into this towards the spring! Thanks!

 

WOW!! That as out of focus as a computer dating photo of a 50 year old !!!! LOL But yes !!

 

Back to the OP...

The three 'must do's' for an EVO are: Intake, Cam, Exhaust. Next would be an ignition upgrade. You don't need a single fire, IMO, just something with a higher limit. An upgraded 80" EVO should easily make the 80/80 (approx) numbers with these mods and some tuning.

There are very little miles on your bike. At 14k, that EVO is just nicely broken in, so wouldn't spend the $$$ for head work at this point. Unless you've got something going on. A good porter can work the stock heads for a 'street setup'. Anything more, and IMO, you might start looking for a replacement set of HP heads.

Your RK is the same weight as my FLHS. When I added the SE air cleaner, SuperTrapp (18 disc) slipons, and EV27 cam, it was like riding a different bike. I don't have the exact dyno numbers handy, but I know that I'm in that 80/80 range. My bike has no problems running two-up, loaded, at interstate and above speeds.

As far as MPG, I get in the high 30's around town, and the low to mid 40's out on the slab. On an interstate trip, where I'm running 70-75mph, I normally will start looking for a gas station after 160 miles, which generally leaves me with a gallon of 'reserve'.

 

got the work done and road tested this weekend.Very happy with results.Crusin` at 60mph and a little twist of the wick and to 85-90mph in no time.Very pleased! Thanks everyone for all of the response. Skip