Yamaha - Jet, pilot (#53.8) - 7CU-E4142-21-A0Yamaha Pilot Jet #53. 8 Carburetor Fuel Metering Component 7CU E4142 21 A0 Overview Pilot jets are one of the first things I check when an engine wont idle right or feels sluggish off idle. Even a slight blockage or the wrong size can throw everything off at low speeds. Ive seen engines come back to life just from swapping in the correct jet. When its right, the motor idles clean and transitions smoothly into throttle without hesitation. Key Features
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