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Mariner yamaha 5hp air cooled Power Head | eBay
Old Yamaha 3.5hp - advice please! - RIBnet Forums
Yamaha 4 Stroke 5hp Short Shaft PORTABLE OUTBOARD FOR SALE – Smooth Engines
Amazon.com: 2 Stroke 3.5HP Outboard Motor, 49CC 40cm Short Shaft Outboard Motor Boat Engine with Water Cooling CDI System for Inflatable Boat, Kayak, Canoe, Fishing Boat : Sports & Outdoors