|  |  |  
 
 | Home > Dual Sport >  
Yamaha WR250X/R Parts > AIS Block Off Kit 
 When installing an aftermarket exhaust on your Yamaha WR250R/X, the AIS (Air Induction System) is no longer serving any purpose and will cause backfiring/popping on deceleration. Once you remove the AIS from the bike, this kit can be used to block off the port/hose on the bike.  Full instructions, with photos, is included.
 
 Fitment: 2008+ Yamaha WR250R and WR250X
 
 
 
 ** OUT OF STOCK - We no longer carry this product.  You can still get it from GraveSport.com.
 
 
 
 
 | 
 | 
 
 
 
 WARNING! - Motor sports can be extremely dangerous, injury or death can occur. No warranty is made or implied regarding any product sold by Devo Tech, Inc. / SoloRacer.com to protect users from injury or death.  The user assumes all risks. Please read the rest of our Legal Disclaimer before ordering.
 
 Our on-line store is up and running 24 hours a day, 7 days a week. We use secure servers for all transactions so you can shop with complete confidence. If you are uncomfortable ordering online, call or email us for more ordering options.
 ©Copyright 2002-2025 by Devo Tech, Inc.
 
 
 
 | 
 |