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FJR Motorcycle Forums
Technical & Mechanical Problems
Audiovox Cruise Control-Problem Solved?
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<blockquote data-quote="Constant Mesh" data-source="post: 432636" data-attributes="member: 615"><p>Check valves aren't required for each TB connection. As you mentioned on the '05 and earlier FJR's the four TB vacuum ports are connected in parallel with the MAP sensor and the fuel pressure regulator. Air can pass freely between TB's via this connection. Since the MAP sensor and pressure regulator are sealed devices there is no air flow between them and the TB's.</p><p></p><p>Also the California FJR's have an extra vacuum connection from TB's 1 & 4 to power the fuel vapor collection canister. There is no check valve in that system so those TB's are piped together with no flow control.</p></blockquote><p></p>
[QUOTE="Constant Mesh, post: 432636, member: 615"] Check valves aren't required for each TB connection. As you mentioned on the '05 and earlier FJR's the four TB vacuum ports are connected in parallel with the MAP sensor and the fuel pressure regulator. Air can pass freely between TB's via this connection. Since the MAP sensor and pressure regulator are sealed devices there is no air flow between them and the TB's. Also the California FJR's have an extra vacuum connection from TB's 1 & 4 to power the fuel vapor collection canister. There is no check valve in that system so those TB's are piped together with no flow control. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Audiovox Cruise Control-Problem Solved?
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