Use only genuine Mikuni components for the highest quality rebuild on your carburetors.  Genuine Mikuni components are precision manufactured to OEM tolerances with materials that do not compromise when it comes to long lasting durability.  Mikuni parts offer many years of long-lasting performance and do not degrade like many other aftermarket components when subjected to the modern-day pollution friendly fuels.   

The Mikuni MK-BSR42-10 carburetor rebuild kit contains all the necessary genuine Mikuni components to rebuild your OEM Yamaha Grizzly ATV carburetor.  Includes genuine Mikuni gaskets, O-rings, screws, and clips.  Because of the variances in models this kit does not contain any jetting, that is available separately and linked below to our store.  It is best to verify your actual jet size before ordering jets.  See the parts list and diagram below, ALL included parts are circled and listed.  Model applications are also listed below.

The MK-BSR42-10 rebuild kit works on ALL of the following models:

• 2002 - 2008 Yamaha Grizzly 660
• Please NOTE:  One kit will rebuild one carburetor.   

All genuine Mikuni jetting is available for your carb to add to the rebuild kit.  Please inquire for help with jetting or sizes.  The jetting required by these models is listed below, individual sizes will vary.  Because of this it is always best to check and see what size jet is actually installed before replacing. 

• Mikuni main jets = N102.221
• Mikuni N102.221 Small Round Main Jet 

• Mikuni pilot jets = N224.103
• Mikuni N224.103 Pilot Slow Jet 

Do you need help rebuilding your carburetor?  We offer expert carburetor rebuilding and reconditioning services.  We can rebuild your carburetor using this genuine Mikuni rebuild kit with FREE shipping when combined with the rebuild kit.  Checkout the link below and please inquire for more information.  

Carburetor Cleaning and Reconditioning Service

Please feel free to contact us with any additional questions or requests, we are available by direct line, IM, or email. We are available for tuning and setup questions as well as continuing product support after the sale.