High quality slow air cutoff valve kit, or what Honda refers to as the slow air cutoff valve, for 1984 to 1987 GL1200 that replaces OEM 16048-MG9-741 and 16048-MG9-671. Includes parts necessary for a complete rebuild of the valve (diaphragm, spring and O-ring) so as to improve starting, warm up, idling and acceleration.
NOTE: The GL1200 requires one (1) air cutoff valve kit. This price is for a single kit.
To further insure against any additional vacuum loss, replace your inexpensive carburetor manifold o-rings 82-611. Vacuum loss can occur there and mimic the effect of a bad air cut-off valve.
Over time, air cut off valves will harden up, perforate and/or disintegrate leaving your bike in a permanently lean, low RPM range (0-2200). When this occurs, your bike will progressively require excessive choking on warm-up and will miss during idling, miss and backfire when throttling up or down, and/or hesitate and backfire when trying to accelerate quickly. This condition will eventually cause "after burn" generated by a lean fuel mixture when closing the throttle.
An alternative to purchasing the costly OE assembly is our inexpensive air cutoff valve kit and, at the same time, replace your inexpensive carburetor manifold o-rings to insure against any additional vacuum loss.
Click here for even more information on Air Cut Off Valves.
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