The product is a vintage K&B 3.5cc outboard marine model engine from the 1980s, suitable for RC boat motors. It features a radial engine design and is compatible with nitro and glow fuel. Made in the United States, this 2-stroke engine is designed for boats and watercraft, with compatible scales of 1:5, 1:6, and 1:10. Ideal for hobbyists aged 17 years and up, this engine offers a powerful and authentic solution for remote control boat enthusiasts. Engine spins freely has great compression does have the prop only thing that is missing is the linkage for the carb, Selling as is look at pictures before buying, Thanks for looking
eBay