Yamaha - Oil Pipe Oil Injection System 6E5-24319-01-00. Overview. Oil delivery on a 2-stroke is something you don't want to take chances with. This pipe is part of what keeps oil moving from the tank to the engine, and if it's cracked, clogged, or loose, it can lead to serious problems fast. I've seen motors get starved of oil just from a small issue in a line like this. Keeping it in good shape is key to protecting the engine and keeping everything running smooth.. Key Features. Reliable Oil Transfer - Ensures consistent flow of oil through the injection system.. Durable Hose Construction - Built to handle oil exposure, vibration, and engine heat.. Leak-Resistant Design - Helps maintain a sealed system to prevent air intrusion or oil loss.. OEM Fitment Accuracy - Matches original routing and connections for proper installation.. Engine & Boat Compatibility. Designed for Yamaha 2-stroke outboard engines with oil injection systems. Commonly used on mid-range and smaller horsepower motor