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Graves Smog Block Off Plates for YZF-R1 04-14
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Graves Smog Block Off Plates for YZF-R1 04-14

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    Product Information

    Graves Smog Block Off Plates for YZF-R1 04-14

    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 dynoing 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. Sold per pair

    • Product ID: 17640
    • Manufacturer:
      Graves Motorsports (learn more)
    • Manufacturer Part#: AB011
    • Fits (click your bike to view all items for it):
      • Yamaha YZF-R1 2004
      • Yamaha YZF-R1 2005
      • Yamaha YZF-R1 2006
      • Yamaha YZF-R1 2007
      • Yamaha YZF-R1 2008
      • Yamaha YZF-R1 2009
      • Yamaha YZF-R1 2010
      • Yamaha YZF-R1 2011
      • Yamaha YZF-R1 2012
      • Yamaha YZF-R1 2013
      • Yamaha YZF-R1 2014
    • Condition: New, unless otherwise noted.
    • SoloMotoParts.com is an authorized Graves Motorsports dealer

    Learn more about Graves Motorsports

    Graves Motorsports, California, USA
    Founded in 1990 with Chuck Graves as its successful proprietor, the Van Nuys, California based company acts as both the manufacturer of performance sportbike accessories and a professional road racing team. Graves Motorsports has become synonymous with real world, race technology available for the everyday performance enthusiast and privateer racer. 

    In 2005, Graves Motorsports expanded its racing program to include AMA Supermoto Championship Series, winning the Supermoto Lites championship in the team’s first attempt. Currently, Graves has a growing list of trick performance items available for the Yamaha YZF-R1, YZF-R6 and YZ450F. The Graves Motorsports Works program offers factory level racing parts and suspension, engine services and technical support to qualified race teams and both the amateur and professional level riders at a reasonable cost. 

    See more products from Graves Motorsports

    Customer Reviews About This Item

    See all 6
      Yamaha YZF R6 2009
      by Vitaly S. on 11/16/12
      Pros: I live in Russia, rapid delivery
      An excellent opportunity to change and spark plugs))
      If you need to use power commander autotune
      Not difficult to install
      Cons: No
      Great product!
      Mattias W. on 10/05/2008
      Pros: Item works great, recommended!
      Perfect Fitment
      Robert C. on 02/24/2008
      Pros: Easy to install!
      Work GREAT!
      If you have a power commander and an exhuast you NEED these!
      Stops the poping when letting off trottle.
      Gets rid of the weight of the AIS pump
      Cons: Didn't come with Graves stickers!
      :)

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