The OS Engine OS FS-61 four stroke motor is a high-quality RC engine designed for use in 1:5, 1:6, and 1:8 scale model vehicles. Made in Japan by OS, known for its reliability and innovation in the RC industry, this engine offers top-notch performance and durability for hobbyists and enthusiasts. With its four-stroke design, it provides smooth and efficient power delivery, making it a great choice for radio control enthusiasts looking to upgrade their vehicles with a high-performance engine. I DON'T KNOW ANYTHING ABOUT THIS MOTOR EXCEPT IT IS USED AND SEEMS TO HAVE COMPRESSION WHEN TURNING THE PROP.
MY ONLY DESCRIPTION IS THE PHOTOS. AQUIRED IN A RANDOM BOX OF STUFF AT A YARD SALE. I DO NOT GUARANTEE THAT IT RUNS, I HAVE NOT MESSED WITH IT. SELLING AS IS FOR PARTS OR MAYBE YOU CAN GET IT RUNNING.
