Installation method of Zongshen 250 Seclon throttle valve

First, fix the four screws of the throttle valve by hand. Because the hands are sensitive, avoid screwing the screws directly with the sleeve. After manual tightening, you can tighten it with a tool and then plug it in. The installation of the plug requires a little effort, and only a little light means that the throttle valve is fixed. Then install the hose. There are two grooves on both sides of the hose. Don't aim at a big convex groove and a small convex groove on both sides. Both ends of the hose are completely nested. When the concave-convex grooves at both ends are completely matched, touch the bottom of the hose by hand to ensure that the lower part is completely nested. Tighten the screws on the iron hoop, install the engine cover and install the throttle.