That's odd. If you have to leave the choke on partways, that suggests it is lean. Doesn't make sense with the larger jets that were put in for the big pipes.image

What happens if you turn the mixture screws out more?
Also, if it has a jet kit already, then the needle should be the adjustable type. Remove the top of the carb and see if the clip is in the highest position.

duke

duke
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