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Just purchased a set of vm30 carbs from DCC.
Now I'm wondering if its not enough carb for my 1982 gl 500.
Anyone out there know or have them setup on a similar bike.
I want to make sure before install them and can't return them.
I had an early CX500 and I believe it had 34mm CV carbs. The CV type of carb is hindered in ultimate flow by the butterfly and shaft through the throat of the carb. I would be surprised if the 30mm VM did not out flow the 34mm CV. I feel the 30 should work fine. A larger carb may or may not be faster. Best is to find someone who has already done this swap.
What size carbs does a CX like to run for overall performance - not race type top end - just average riding? I would have thought that 30mm would have been enough up to about 75% throttle and after that might be a size or two too small.
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