Sup everyone! I just installed a ninja g3 on my motobecane, replacing the stock exhaust, and I noticed that the performance got a bit worse, especially in the low/mid end.
I am running a ported 50cc with dellorto 15/15 #64 jet/filter, 2 balls/variator, head gasket. With this setup, sans head gasket, I was able to hit almost 40. Now I can barely stay around 30.
Would adding the g3 exhaust justify upjetting? Also the head gasket probably ruins performance too. Any suggestions?
-pete / concord ca