Norton Racing Smog Block Off Plate and AIS Removal Kit – Yamaha R3 / MT-03



Norton Racing Smog Block Off Plate and Air Injection System Removal Kit – Yamaha R3

This kit includes all parts necessary to remove the charcoal canister and emissions control air injection system.  The air injection system must be removed or bypassed to effectively tune a fuel controller such as a Bazzaz Z-Fi or Dynojet Power Commaner PCV.

Removing the charcoal canister and all parts of the air injection system also removes 2 lbs from the bike (a few ounces get added back with the block off plate).

Save yourself the time and hassle of trying to find the correct size rubber caps and buy this complete kit.  You can view the complete installation instructions here:

How to remove the emissions systems and install block off plates on the Yamaha R3

Kit includes:

(1) Norton Racing Smog Block Off Plate

(2) 3/16″ EPDM Rubber Vacuum Caps

(1) 1/2″ EPDM Rubber Vacuum Cap

This kit is for closed course race use only.


Additional information

Weight 0.3 lbs
Dimensions 3 × 3 × 1 in


  1. Sammy

    Awesome kit! All the parts i needed. and be sure to follow the blog post for instructions.

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