Re: CD-16 Carb Adjust

[fisherman6]

Steve,
There should be a brass ‘sleeve’ that the adjustment needles fit inside with a hex head on them. Those are the packing nuts and they are there to compress the packing washers into a tapered seat in the carb body around the threaded portion of the needles. Those should be snug enough to prevent vibration from moving the needles out of adjustment at a very minimum. Once the adjustments are close to dialed in, I always snug them up so the knobs do not turn so easily that the adjustments can be easily moved accidentally. I make the final adjustment after they are pretty snug.

Whenever I rebuild a carb I remove the old packing and clean the pocket out well making sure to get out all the old crumbles of packing. I then replace the packing washers with new ones. The packing prevents unwanted movement of the adjustments as well as air leaking past the needles and leaning out the mixture.

I hope this helps.

-Ben

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