"Well rode it to the dyno
appt. and apparently I was WAY lean. I had it at 170 and 3rd groove and the guy had to move the needle and drill out a jet cause they didn't have a 190 then had a new tire put on in the front.
This is what I was thinking about.^^^^^^^^^^^^^^^^
Is the bike running fine other wise?
About how many miles have you put on it since the dyno?
Are you seeing a lot of carbon buildup in the pipes?
Could you pull a plug from the rear cylinder and one from a front cylinder, to see how they look?
Is the bike starting good? Does it need the enricher/choke, or does it seem to start fine without it?
Are you doing a good job of calculating your mileage? The relatively small amount of fuel in the tank, would make filling it the same each time, critical. I'd think that averaging your mileage over several tanks would be a great way of doing this.
Check out the WOT
tech article, and see if your bike is showing signs of running rich.
Erbman is not shy about pointing out, that even the larger main
shouldn't bother you, if your not using it. 70 to 80, with a #300 rider, and into a head wind, is going to get you into the main quite a bit I would think. If you are closer to 80, then the fuel is going to go down faster, then if your close to 65.