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Yamaha WR250R + WR250X Smog Block Off Kit

$29.99

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Details

  • SKU: ABY-08WR2-S
  • Manufacturer: Graves

Description

    California Restricted

    California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (www.arb.ca.gov).

    If an item is designated as "Competition and Racing Vehicles Only", we will require a race waiver be digitally signed before an item can ship to California. If an item is to be exported from California, an export waiver is available as well. This is a REQUIRED guarantee from you that a restricted item will NOT be used on any public highway in California; only on private race tracks in racing or competition use.

    Graves Motorsports Yamaha WR250R + WR250X Smog Block Off Kit for the 2008-2017 model bikes. 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). This product is intended for closed course competition use only. Use of this product for any other purpose is strictly prohibited.

    The air induction system (AIS) burns the "unburned" exhaust gases by injecting fresh air (secondary air) into the exhaust port, reducing the emission of hydrocarbons.

    Once this is capped off the air injection system can be safely removed. There are two reasons why you want to remove the air injection system from your bike.

    • 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.
    • 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. This is a "MUST" add on to achieve a proper air fuel ratio while using the Dynojet Power Commander Autotune setup.


    Fitment: Yamaha WR250 X + R 2008-2017

    This part fits the following

    TypeMakeModelYearEngineLocationRequiredNotes
    MotorcycleYamahaWR250R20082501
    MotorcycleYamahaWR250R20092501
    MotorcycleYamahaWR250R20102501
    MotorcycleYamahaWR250R20112501
    MotorcycleYamahaWR250R20122501
    MotorcycleYamahaWR250R20132501
    MotorcycleYamahaWR250R20142501
    MotorcycleYamahaWR250R20152501
    MotorcycleYamahaWR250R20162501
    MotorcycleYamahaWR250R20172501
    MotorcycleYamahaWR250X20082501
    MotorcycleYamahaWR250X20092501
    MotorcycleYamahaWR250X20102501
    MotorcycleYamahaWR250X20112501
    MotorcycleYamahaWR250X20122501
    MotorcycleYamahaWR250X20132501
    MotorcycleYamahaWR250X20142501
    MotorcycleYamahaWR250X20152501
    MotorcycleYamahaWR250X20162501
    MotorcycleYamahaWR250X20172501


    This product was added to our catalog on Thursday 25 January, 2018.




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