Yamaha Ring Free Plus it's our best kept secret.No kidding. We knew it was good, but our customers are sold on it. They call it mechanic in a bottle.
Use as a constant treatment, or as a “Shock Treatment.” For two stroke and four stroke engines. Reduces carbon deposits in the ring grooves of 2-stroke engines, preventing ring jacking and sticking which can lead to scuffing and/or engine seizure. Restores efficient spray pattern in fuel injectors partially blocked by carbon deposits. Two doses are recommended.
Good for old engines that have had all the treatments but just don't run well. Follow the instructions; mix with gas and pour this in, the oil in your engine can turn black immediately as it cleans. Replace the oil with a second dose, your engine will be much improved.