High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
The popping noise MAY be from the PAIR system, which allows passive flow of filtered air from the airbox into the exhaust ports. A solenoid valve controls it on or off. The idea was to decrease emissions by having any unburned gasses mix with air, then burn off. Results in popping noises on occasion.
Some remove this system and plumbing to clean up the engine bay, but there is no advantage to performance, the mixing takes place downstream of combustion.
Now that you know that, any leak in the exhaust, e.g. at clamp locations can also result in popping as air enters there if they are not tight. Hard to imagine your joints aren't tight however, but check the muffler clamps at the collector near the centerstand.
Keep yer stick on the ice....
2014 FJR1300A - Root Beer (sold)
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