MCP Brass Choke Nut for the Keihin Carburetor CVK40 (All carbureted KLR600/650's) - H.S Code 8714.10 Blocks the air injection into

Blocks the air injection into the exhaust system  (emissions stuff)

MCP "Department of corrections Sticker"

it's still the best money you'll ever spend on your bike

MCP Flow Control Unit - Laser etched "MCP" - Available in Green

Plated Spring Clamps x2

MCP Brass Choke Nut for the Keihin Carburetor CVK40 (All carbureted KLR600/650's) - H.S Code 8714.10 Blocks the air injection intoMCP Brass Choke Nut for the Keihin CVK40 Carburetor Replaces the easily broken OE plastic choke nut. 1984 2021 CVK40 carburetors. KLR600 650 and KLX650 United States shoppers please note, the USA put duties and tariffs on all shipments entering the USA from Canada as of Aug 29th, 2025. These fees will be added on the check out screen. The GOOD news is, even with the extra cost, it's still the best money you'll ever spend on your bike. It's that good.