Polaris Sportsman 500 Dies When Accelerating - They are saying that the belt is slipping under hard acceleration, causing the engine to bounce off of the rev limiter. It does this so quickly that it doesn't register on the tach. If damaged it can cause problems by sucking in air. The reason the polaris sportsman 500 dies when accelerating often comes from the cdi box, which is used to pass electrical current to the spark plug and ignite the engine. Take the fuel hose off the carby and put it into a bottle and start the motor and check there is a good full flow of fuel coming through. But then when the throttle is applied, and held, it immediately chokes and dies. If i just tap the throttle, it revs then returns. 2006 sportsman 500 efi losing spark when accelerating. Jump to latest follow 1k views. Today, we road 2 hours and had no problems. All of a sudden, it died. Although it cranked right up, any acceleration would cause it to die. The fuel presssue is good. When we talk about reliability in the context of the polaris sportsman 500, several key aspects come into play: The sportsman 500 is equipped with a powerful 500cc, 4. The next week it started to die when giving it throttle, but seemed intermittent. I pulled the carb and it looks clean, but didn't fully disassemble. New air filter, and spark plug.
They are saying that the belt is slipping under hard acceleration, causing the engine to bounce off of the rev limiter. It does this so quickly that it doesn't register on the tach. If damaged it can cause problems by sucking in air. The reason the polaris sportsman 500 dies when accelerating often comes from the cdi box, which is used to pass electrical current to the spark plug and ignite the engine. Take the fuel hose off the carby and put it into a bottle and start the motor and check there is a good full flow of fuel coming through.