XT600 Carb Air Cut Off Valve Kit Generator Covers YZF R1 1998-2003

YZF R1 1998-2003

DT400MX 1977-1981

This set of 2 inlet rubbers are specially manufactured in the same factory that supply Yamaha

Please note the headlamp assembly is slightly smaller where it fits through the rim than the OEM original

5amp twin terminal Horn is manufactured by Nikko the leading Japanese OEM supplier

XT600 Carb Air Cut Off Valve Kit Generator Covers YZF R1 1998-2003This high quality Japanese air cut off valve kit is a simple but vital component of the carburettor system. Its function is to eliminate backfiring on hard deceleration (throttle fully closed). Hard deceleration creates a high vacuum signal in the intake tract which activates the valve. When activated, it restricts the flow of air to the external idle circuit air jets thereby richening the mixture. This slightly richer mixture is calibrated to