Decompressor Assembly For Royal Enfield Old Model Bullet- Part Number-140790

Maintain the classic starting ritual of your vintage thumper with the Genuine Royal Enfield Decompressor Assembly. Designed for the legendary Cast Iron (CI) engine, this assembly threads directly into the cylinder head. It is a must-have for preventing “kick-back” and protecting your sprag clutch or kick-start pawls from the immense back-pressure of the high-torque engine. Key Features: Authentic OEM Part: A 100% genuine Royal Enfield replacement (140790), ensuring the exact thread pitch and heat-resistant properties required for the cylinder head environment. Complete Valve Mechanism: Includes the internal spring-loaded poppet valve designed to open under cable tension and seal perfectly under engine compression. High-Heat Durability: Manufactured from specialized steel alloys capable of withstanding the extreme temperatures and pressures of the combustion chamber. Essential for Starting: Helps the rider find the correct stroke for starting, making the heavy 350cc or 500cc engines significantly easier to crank by hand or foot. Direct Fitment: Precision-engineered for the specific port dimensions of vintage Royal Enfield heads manufactured before the UCE transition. Specifications: Compatibility: Royal Enfield Standard 350/500 (Cast Iron), Bullet G2, B1, and early Electra models. Part Number: 140790. Type: Mechanical Cylinder Head Decompressor. Material: High-Grade Temperature-Resistant S