Mikuni Super BN Series 34mm Carburetor

The Mikuni Super BN Series is an updated version of the BN series carburetors and serves as original equipment on Yamaha watercraft. This carburetor features improved airflow and a higher-capacity fuel pump for more demanding applications, making it a direct replacement for the Yamaha WaveRunner 500 and WaveJammer 500.

Key Features

• Updated version of Mikuni's BN series carburetors
• Original equipment on Yamaha watercraft
• Improved airflow — increased by 9%
• Higher-capacity fuel pump — capacity increased by almost 20%
• Fuel pump and jet sections are separated for easier maintenance
• Integral fuel filter included
• Externally adjustable metering screws for easy high- and low-speed tuning
• Replaceable jets for straightforward tuning
• Conventional butterfly choke for easy starting
• Correct regular throttle shaft with choke shaft for easy installation
• Uses stock jetting
• Can be used on many models with the addition of an intake manifold
• Made in Japan

Fitment

• replacement on Yamaha WaveRunner 500
• replacement on Yamaha WaveJammer 500

Specifications

• Carburetor Size: 34mm
• Color/Finish: Black
• Weight: 2.02 lbs
• Dimensions: 6.3 x 6.3 x 6.5 in

Fits the following:

• Yamaha WaveJammer 500 WJ500: 1988-1989
• Yamaha WaveRunner 500 WR500: 1988-1989