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Graves Motorsports Smog Block-Off Plates-Yamaha YZF R1 (2004-2009)

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$36.95$34.95

Product Information
Specification
Graves Motorsports Full Stainless Steel/ Carbon Fiber Exhaust System-Yamaha YZF R1 (2004-2009)

       
    • Graves Motorsports Smog Block-Off Plates are designed to seal off the ports on the valve cover used by the air injection system (a.k.a smog pumps or AIS).
    • The air induction system (AIS) burns unburned exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons.
    • Once these are capped off the air injection system can be safely removed.
    • These Smog Block-Off Plates are made from CNC'ed billet aluminum and feature the Graves Motorsports “G” logo.
    • There are two reasons why you want to remove the air injection system from your bike:
    1) if you are using your motorcycle on a closed course (racing, track days, etc.) you will want to remove all unnecessary equipment from your bike for reduced weight and ease of maintenance.
    2) to get an accurate Air:Fuel (A/F) ratio when “dyno”-ing the bike. The air injection system pumps fresh air directly into the exhaust stream in order to burn off any unused fuel. Unfortunately by doing this, the A/F ratio is thrown off by the extra “fresh air” in the exhaust stream. By removing the air injection system you can achieve an accurate A/F ratio
Product CodeABA-0SS56-20-70
ConditionNew
Weight5lb

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