Here's my setup: (on a '78 Maxi Luxe)
Stock high torque cylinder
Stock Bing 12mm Carb (upjetted from 60 that was in it to 64)
I was expecting a slightly better speed/power improvement than I got when I added the circuit pipe. I have the bike running pretty rich right now, a quite a bit darker than that "toasted marshmallow" look on the plug chop, but not dark black either. My question is:
Is running on the rich side killing my performance gains, or is the stock carb holding me back more than I thought it would? Or what is holding me back now? I have been running around 32:1 premix, which my Hobbit tolerates just fine, but is the extra oil bogging down the Puch?
Basically, is there something still keeping me at 35mph, or am I just spoiled by the Hobbit and expecting too much?
(Note:the bike is NOT four stroking except when it is first driven and still cold)