This is an OEM Yamaha Autolube 2-Stroke Oil Injection Pump Assembly, manufactured for Yamaha by Mikuni Kogyo. Designed for Yamaha’s automatic oiling system, this mechanical variable-displacement pump meters the correct amount of 2-stroke oil to the engine according to throttle position and RPM. It is driven internally through the attached nylon/plastic worm gear and controlled by the throttle-linked pulley system. * OEM Part Number: 1M1-13101-01-00 * Manufacturer: Mikuni Kogyo * Part Type: Autolube Oil Injection Pump * Material: Aluminum alloy body with nylon/plastic drive gear * Features: Dual-bolt mounting flange, throttle cable control ramp, oil inlet/outlet spigots, and internal check valves to help prevent oil backflow Compatible Models * Yamaha DT250D — 1977 * Yamaha DT250E — 1978 * Yamaha DT250F — 1979 * Yamaha DT400D — 1977 * Yamaha DT400E — 1978 Verify OEM number and pump configuration before installation.
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used WD40
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
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Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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