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Louie, Technician
Category: Motorcycle
Satisfied Customers: 12598
Experience:  25+ yrs. experience
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04 cbr 1000 dosent rev past 7 and some times 4 tried plugs

Customer Question

04 cbr 1000 dosent rev past 7 and some times 4 tried plugs checked the wires and all that whag do you think it is
Submitted: 2 years ago.
Category: Motorcycle
Expert:  Louie replied 2 years ago.
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially and if everything is stock, then the most likely suspect would be an air issue through the ram-air system. These are vacuum-operated system and/or ECU-controlled tunnel butterfly valves that allow/block air entry depending on the throttle opening and RPM.Please post back results / observations of the above once checked.