Too Much Air?

[dryyzz]

Hi, I recently purchased a '79 model which is a 40,000 miler with a 6-1 exhaust. After being happy the bike was tatty but up together, I discovered the previous owner had been running the bike without an air filter element. I have noticed that the bike pulls hard up to about 2-3000 revs then seems to go a bit flat untill 6000 revs, ball park. Could this flat area be because the engine has too much air? If I whack the throttle full open from tick-over, it does start to bog. It does run ok, but is frustrating that the initial rush of power seems to fade out.



Any ideas?



Thanks, Darryl

[dryyzz]

With the air slightly restricted through the fitment of a std air filter, the bike now runs fine and strongly throughout its rev range. suprising amount of power for a 26 year old machine. Nice.



Darryl