Over on ACME I recently asked about the float level on a RD6 pilot motor and our Aussie Legend, Mr. EDB once again came to our rescue, so I will transfer his scanned pages from ACME over to ACMOC and hope they help, because he lists specifically setting the R4 float level. You will also see the note that all Zenith carburetors have a scratch mark inside the fuel bowl that indicates the correct fuel level, I have seen that scratch mark on my Zenith T5T off my 2 Ton.
regards
Mike![]()