Be sure to pay attention to the direction of flow External dimensions of the socket: 3.6 / 4.7 mm Ø Suitable for all 2-stroke scooter models Suitable for all 2-stroke motorcycle models (all with separate oil lubrication) In many 2-stroke engines, the oil pump runs afterward. Cause: Engine totally over-greased. for professional assembly and ventilation Recommendation: drive the first tank full of mixture It is important to ensure bubble-free installation. Those specified in the offer title Vehicle manufacturers are for ONLY purposes Orientation of the customer and have Moped and motorcycle manufacturers. We process inquiries promptly by email This is how 98% of all returns can be done ... Saving energy and nerves - made easy... first step for active environmental protection. Anyone who buy.