In 2005, the old flying speed was 200,000 kilometers. After cleaning the nozzle and throttle, the neutral speed is normal, and the D gear can't afford to add oil, with a maximum of 2000 rpm.

If it is a fault after washing, it should be a problem of throttle matching. Just use the computer to match it, and the mechanical solar terms have to be matched. Check for air leakage first. Block the throttle with a torch. It's normal if you turn it off immediately. If you don't turn off the fire, it will leak.