Carburetor connection rubber for Yamaha XJR400 93-99 intake manifold, OEM part number 4HM-13586-00, gasket set for four-cylinder engine--DTEKGAZ

This product was specifically designed for the Yamaha XJR400 four-cylinder (model years 1993–1999) and is an exact replacement for the original part number 4HM-13586-00. This complete repair kit for four-cylinder engines ensures a perfect fit between the carburetor and the cylinder head intake port, providing the ideal solution for intake manifold gasket issues on this legendary air-cooled engine. 【Main Function and Importance】 In the carburetor fuel system, this connection is the first critical barrier against mixture loss and the ingress of outside air. Its seal directly affects the four-cylinder engine's performance and combustion efficiency. Worn seals can lead to significant air leaks, resulting in rough idling, sluggish acceleration, power loss, and misfires in individual cylinders. Replacing this part is a fundamental repair measure to restore the XJR400's smooth torque delivery and stable idle. 【Materials for Increased Durability】 This gasket, made of high-strength, fuel- and high-temperature-resistant fluororubber (FKM/Viton* or equivalent high-performance materials), is optimally designed for the high temperatures of air-cooled engines and continuous fuel contact. It offers excellent resistance to compression and aging, retains its elasticity even after prolonged use, and provides a longer-lasting and more reliable seal than the original gasket. 【Solves Common XJR400 Problems】 Completely eliminates the intake imbalance of the four-cylinder engine caused by hardened and cracked gaskets. Addresses common issues such as starting problems, high idle fluctuations, and misfires. Restores optimal torque response in the low and mid-range RPMs. Provides a stable basis for precise carburetor synchronization. 【Professional Installation Instructions】 This product is sold in a set of four. Carburetors and intake manifolds must be removed for replacement. Please thoroughly remove all gasket residue from the contact surfaces between the cylinder head and intake manifold using appropriate tools. Then clean these surfaces with an oil-free cleaner to ensure they are clean and flat. During reassembly, be sure to adhere to the tightening torques specified in the workshop manual (usually lower) and tighten the mounting bolts evenly in a crisscross pattern to prevent leaks caused by uneven tightening. [Compatible Models] Yamaha XJR400 (1993–1999 models)