Reply to "Seeking Carburator Recommendations"

1973panteraPantera # 5181

It sounds like you have a blown powervalve. If it's leaking it will be VERY rich at idle. Also check your float level. I just went thru this with my 650 DP.
I eventually ended up replacing the powervalve (Part Number: HLY-125-65)

A quick way to check for a bad powervalve is to get your car up to operating temperature and then turn your idle mixture screws all the way in. It should die out. If it doesn't then you have a bad power valve.

I also replaced both Needle and seat assemblies (Part Number: HLY-6-504) as the O-rings for both were leaking and allowing the fuel bowls to overfill causing it to run rich as well. The needle and seat themselves were fine, the o-ring that seals the assembly had shrunken over time.

6/30/137:17 AM

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