PD42J-4 carburetor is a large-displacement ATV ATV carburetor, which is suitable for Yamaha Yamaha 660 YXR660 engine, and can also be used for other similar models. Technical parameters Main measuring hole: ??1.58 Idle speed measuring hole: ??0.65 Intake valve ID: 42mm, air filter OD: 62mm Characteristic description The carburetor adopts advanced Japanese technology, with good performance, fuel economy and cost performance; The products favored by many brand motorcycle OEMs, we will provide high-quality after-sales service. Packing List Product Net Weight (kg): 0.96 Packing Inner Box (mm): 170*150*125 Outer Box Dimensions (mm): 770*350*270 (20 sets per box) Outer Box Gross Weight (kg): 22.41XThrottle Base Cover, 1XThrottle Base Rubber Mat, 1XThrottle Cable Clip, 3XBase Cover Screw2Xmain??1.55and??1.50