Two-piece throttle body interface kit and intake manifold connection, compatible with Yamaha YFM660, YFM660R and YFM660RLE quads.

This product is a genuine Yamaha two-piece intake manifold connection kit, specifically designed for the high-performance Yamaha YFM660, YFM660R, and YFM660RLE all-terrain ATVs (Grizzly 660 series). The kit includes all the flexible, leak-free intake hoses required to connect the two cylinders of the V-twin engine. Engineered for the exceptional performance and demanding operating conditions of the Grizzly 660, this kit is constructed from high-quality, reinforced materials. It provides a comprehensive, reliable, and precise repair and replacement solution for vehicles whose rubber components are prone to premature wear due to high temperatures, vibrations, and heavy loads. It ensures a perfect seal for the V-twin engine's intake system, restoring its high low-end torque, smooth running, and excellent fuel efficiency. Key Features: Perfect compatibility with the Grizzly 660 model: This kit, specifically designed for the Yamaha 660cc V-twin quad platform, guarantees a perfect fit thanks to its compact intake configuration in the engine bay (including throttle body and intake resonator). Complete repair kit with dual ports: The kit includes both necessary ports for the left and right cylinders. This ensures consistent intake conditions for both cylinders after the repair and prevents performance differences between new and worn parts. Exact reproduction of original specifications: This kit precisely replicates the shape, length, bend angle, and interface dimensions of the original ports, ensuring a seamless and non-destructive connection to the electronic fuel-injection throttle body (or carburetor) and the intake ports of both cylinder heads. Engineered for the extreme conditions of ATVs: The materials used offer extremely high tensile strength, excellent resistance to thermal aging and oxygen, and corrosion from gasoline/ethanol. This kit withstands the harsh conditions of towing heavy loads, deep water crossings, and intensive off-road riding. It restores the performance and smooth running of your ATV: V-twin engines are very sensitive to leaks in the intake manifold. This kit completely eliminates air-fuel mixture imbalances caused by leaks, resulting in a stable idle, linear throttle response, consistent exhaust temperatures in both cylinders, and excellent low-end torque. Compatibility: Compatible models: Yamaha YFM660 (Grizzly 660), Yamaha YFM660R (Grizzly 660 with reverse), Yamaha YFM660RLE (Grizzly 660 Special Edition).