Secondary Throttle Valve

Secondary Throttle Valve Operation





1. The secondary throttle valve should start to open when the primary throttle valve opens 52°±2° and should be completely open at the same time that the primary throttle valve is fully open.
2. Check the clearance between the primary throttle valve and the wall of the throttle bore when the secondary throttle valve starts to open.
3. If the clearance is not within the standard value range, bend the tab (B) until the proper clearance is obtained.
Clearance: 7.35 - 8.25 mm (0.289 - 0.325 in)