Sorry about that, sometimes these computers are just too much for the technically challenged user with short stubby fingers.

I understand what you are saying WRT props, mufflers and pressure systems but I do not run muffler pressure, I am using the Cline system.

I am sure that the OEM carby is good, however it may be that my example is one that slipped through quality control. I am not ready to give up just yet, but am reluctant to purchase another muffler fuel pump combination at this stage. BTW I am getting 8900 with the 18X6W APC.

Regards

Peter