Jetting Question

Hi all,
I am runnig a DR177 kit (bolted right on) with a delorto 24g carb and simonini pipe on a Stella. I tried #120, #118. This seems still too rich. Bogs on the first 1/4-1/2 throttle. Think this is a mixing issue? Or go down in jet size?

           Thanks in advance.



with your set up check the timing should be at 18 and main jet around 112 (get a spare 110 and a 115), and spark plug grade for Bosch W4 or for a NGK 8.