[XLsior]

Received the Keihin PZ30 with throttle and filter kit in the mail the other day. Pretty happy with it.

But thought it would interesting to make some comparisons to the Mikuni missing the slide that came with the CG250 and the Keihin 27 that came with the Honda 163.

The most notable issue to me was how much of a restrictive dog leg with the inlet adapter the Mikuni came with.

Also with a touch rotary porting managed to open up the inlet adapter that came with the Honda 163.

no real issues with interchangeability the Honda inlet adapter mates up to the CG250 head perfectly and the O'ring seal to the PZ30 is adequate.

Appears that the Honda inlet adapter also has in built heat insulator too. compared to the other adapter's separate plastic spacer.

I have not opened the PZ30 to see what jets it came with.

Still waiting for more parts, can't do much with the build until my new piston and rings turn up.