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Discussion Starter · #1 ·
I am rebuilding the carbs on my 1986 nighthawk and ordered an accelerator pump from 4into1.com. As I began reassembling the carbs, I discovered that the new pump shaft is too long. I have attached a picture of the old and new pumps. However, I am not convinced the PO had the proper parts installed... the air cutoff valves were completely useless. Does anyone know the proper length for the accelerator pump shaft? Or at least know where to find this info? Thanks for any help!

Spencer
1986 Nighthawk CB450SC
 

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Discussion Starter · #4 ·
Thanks, when I get home from work I will measure the shaft that came with the kit. My bike is a 1986 CB450SC nighthawk, so that pump should apply according to the listing on 4into1.com. The pump shaft would be very easy to cut, I just need to know what length is correct. If it helps, the carb model numbers are VB2EA. Thanks again!
 
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