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WynPro Air Induction Cover Plates

Yamaha FJR Motorcycle Forum

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Reaper

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Anybody got a set of these they want to sell?

I have a 2011 FJR, but I think they fit all years, don't they?

 
The plates block off the Air Induction System (AIS) at the reed valves and lets you remove a lot of unnecessary plumbing. It also eliminates deceleration popping in the exhaust headers when the engine is cold.

The AIS is active when the engine is cold and again at idle when warmed up. The ECU triggers a solenoid which opens up an air passage from the air box to four reed valves positioned over the exhaust ports. The AI system remains ON until the coolant thermostat opens, then the ECU turns the solenoid OFF. The air injection allows any unburned fuel from the rich 'choke' setting to burn in the exhaust pipes. The only potential downside to removing the AI system is that the catalytic converters will see a short period of rich exhaust gasses when the engine is cold.

 
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