R ralphie Ralphie Boy Messages 12 Reaction score 0 Points 1 Location Alberta Aug 24, 2015 #1 Does the 1982 CB750 run a vacuum fuel pump?
T tommycarl CB750 Addict Messages 374 Reaction score 0 Points 16 Location Hoopeston, Illinois Aug 24, 2015 #2 Never heard it called that before... have you found something that you think might be a fuel pump?
amc49 CB750 Guru Messages 3,476 Reaction score 49 Points 36 Location Fort Worth TX. Sep 17, 2015 #3 Vacuum demand fuel valve, the carbs don't get fuel until motor is up and running to open the valve. Bypass it, commonly they are junk this old. The small unit bolted to top right carb behind it.
Vacuum demand fuel valve, the carbs don't get fuel until motor is up and running to open the valve. Bypass it, commonly they are junk this old. The small unit bolted to top right carb behind it.