Thanks for reply.


There were no venturis in the carb- I guess it's the way to restrict it on your own, but factory did it the other way. But I will double check that just in case.

I can't tell what were my main jets at the beginning, because my mechanic changed them before even letting me know.

So far I decided to buy used full-power carbs and simply swap them, or just interchange necessary parts if the "new" carbs will be in poor condition. They cost 50 euro, so I think it's not worth the hassle to try different configurations on my current carbs, since in the end it may appear even more expensive.

As for shaking at 3.000, I know it can be expected, but what worries me is that it continues throughout whole RPM range. Up to 8.500, cause beyond this point it's impossible to rev the bike higher even on 2nd gear. I can't try it on 1st, cause it shakes really violent then, and I wouldn't like to fall off this way

I performed a little test, accelerating WOT on hot engine and choke on, to check if it's not running too lean (should have smoothed out on choke, right?), but it was much worse then, so I bet it's running rich. The fuel economy and slight petrol smell from the exhaust would also tell that.

I know the torque curve drops dramatically beyond full power mark, but in my case it seems to drop a huge amount from less than 7K, where theoretically it should pull great. So something is definitely wrong.

When I will get my "new" carbs I will post what were the exact differences. So far the only thing to blame that I can find is this damn needle, cause everything else seems to be checked so far (blinded throttle holes, main jets changed).