Hi I have a stock zongshen 155 that I am trying to tune a pwk 28 for. I was using a genuine mikuni vm 26 carb I’d bought off tbolt USA but the throttle response left something to be desired, so I thought I’d try a flat slide since this carb was given to me for free. Pretty sure the carb came off...
Here are some picture's of a few common pit bike carby's
These are posted here for a reference to help identify your carby
Keihin china copy, Sheng-Way, Jing-Ke PZ16 (16mm), PZ19 (19mm), PZ20 (20mm). PZ21 (21mm)
Round bore Carb, ideal for 50cc, 70cc, 90cc, 110cc engine's...