Yamaha - Carburetor Assembly 2 Fuel Delivery System 6K5-14302-03-00. Overview. The Yamaha Carburetor Assembly 2 6K5-14302-03-00 is the kind of part you reach for when your engine just isn't running clean anymore. When a carb starts acting up, you'll notice it in the idle, throttle response, and overall performance. This assembly helps bring everything back into balance so the engine runs steady and predictable again. It's a solid fix when tuning or cleaning the old unit isn't enough to get it back on track.. Key Features. • Balanced Fuel Delivery - Provides consistent fuel flow for smooth engine operation.. • OEM-Calibrated Design - Built to Yamaha specifications for proper performance without guesswork.. • Improved Throttle Response - Helps eliminate hesitation and uneven acceleration.. • Durable Marine Construction - Designed to withstand fuel exposure, vibration, and harsh conditions.. Compatibility. Compatible with select Yamaha outboard engines using this carburetor assembly confi