Optional): Adjust Idle Speed Screw. If you set a baseline in step 4, chances are idle is a little high. Be sure to adjust it so that you start with the engine’s normal running speed. You may need to perform this during warm up if the idle speed is too high after reverting to “factory” spec. Warm the Engine Up. The engine's running temperature directly correlates with proper air and fuel mixtures. So, be sure to let the engine run and reach normal operating temperatures before proceeding. Optional): Set Baseline. If the carburetor is new or has been rebuilt, you should set it to "factory" adjustment. You can do so by adjusting the idle mixture screws to 1.5-2 turns out, and the idle speed screw to 1-1.5 turns in. Locate Adjustment Screws. Before beginning, you should familiarize yourself with the location of the idle mixture and idle speed screws. There’s more to tuning carburetors than just adjusting the idle mixture and speed. If you want to improve the performance at part, and wide-open throttle you will need to dive further into tuning the carburetor. This is where things vary by the carburetor and you take a step up from the beginner level of tuning.

Remove the Engine Air Filter. The air cleaner and filter assembly must be removed for you to access the carburetor.Optional): Hook up Vacuum Gauge. If you are using a vacuum gauge for this process, you should find and connect it to a manifold vacuum port before starting the engine. The company’s products mainly apply to the fields of Agricultural Machinery, Plant Protection Machinery, Garden Machinery, Engineering Machinery, Sport Machinery, etc., such as trimmer, blower, hedge trimmer, lawn mower, snow sweeper, snow blower, generator, chainsaw, cutting equipment, etc. The company has established a solid and reliable supplying and cooperative partner relationship with many world’s leading engine manufacturers, like BRIGGS & STRATTON, KOHLER, GENERAC, HUSQVARNA, MTD, TTI, CUMMINS, TORO, HONDA, MITSUBISHI, YAMAHA, etc. Also, the relevant products have passed EPA, CARB, and EU emission certification. Adjusting a carburetor is something you perform frequently. It might sound silly but sudden changes in the weather and altitude will impact the way your car runs. As the seasons change or you travel you should adjust accordingly.

Steer clear of hot surfaces. Some parts of the engine can get hot enough to cause second or third-degree burns. The carburetor itself shouldn’t get anywhere near those kinds of temperatures, but you should still be mindful of hand placement as you work to prevent burning yourself.Don’t make the mistake of assuming that float bowl levels are fine. Any time you make adjustments it is wise to inspect and adjust fuel levels to ensure the engine can perform properly at idle and otherwise. Even if a carburetor is brand new, it still needs tuning. Your engine, its condition, your location, and the weather all come into play and the carburetor needs to be adjusted properly. Zhejiang Ruixing Electromechanical Technology Co., Ltd. established in 1983, is a large-scale carburetor manufacturer for general gasoline engines, consisting of products development, manufacturing, sales and service. The company now has production plant of 30,000 m2. Through 30 years’ effort, the company has formed and covered 5 series with more than 1,000 types of carburetors. At present, the annual production capacity of the company is 13 million carburetors, having become one of the world-renowned manufacturers of general gasoline engine carburetors. “Ruixing” has been certified to be a well-known trademark by China. Bring in the World’s Leading Technology; Create Ruixing International Brand.” is the unremitting pursuit of Ruixing; “Create Brand Through Quality; Achieve Development Through Innovation.” is the unflinching step of Ruixing. Ruixing sincerely looks forward to achieving a new glorious future jointly with its new and old customers.