And high qualityHighly matched to the original unitRobust and durable, long service lifePart Number: 640349 640052 640054 640058 640058AMatterial: metalColor: silverMounting:For 8 9 10 824 snow blowerFor 50-659 520-926For carburetor for 640349 640052 640054 hmsk80 hmsk90Lh318sa l358sa 8hp 9hp 10hp snow blower carburetor generatorWhen the work is not good:1. oil circuit problem: the carburetor oil supply fuel tank is not. Check whether the oil circuit is open, whether the pipe is strangled or not, and whether there is foreign object blockage.2. Idle speed is too low: A new carburetor can't completely fit the machine, and the machine may need a higher idle speed due to aging or wear and tear on parts. The new carburetor is based on a brand new machine matching test, the test parameters are qualified after, unable to meet the needs of each customer's different parameters. This situation must increase the idle speed: valve screw to red wheel (1-2 rings adjustment to the right)3. The negative pressure hole is blocked: the negative pressure hole is blocked, and it also causes a firefighting situation. Check if the negative pressure hole in the red wheel is blocked after installation. Package Contents:1 * Carburetor2 * 1 * Plug1 * Gasket1 * Fuel Line1 * Fuel Filter1 * Shut-off Valve1 * AssemblyOnly the above package content, other products are not included. Note: The light and different displays may cause the item's color a little different from the real thing. The measurement error is +/- 1-3cm.