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Just finished changing the oil and filter on my Yamaha F150 and was preparing to add Ring Free to the gas for the first time. The label states "When adding to 4S motors in the "Shock" quanity, you must change the oil afterwards.
Two questions:
1. My motor has 220 hrs on it and I have never used ring free. Do I need to do the shock treatment?
2. If the answer is yes to the first question, is the oil change really necessary?
Thanks,
Two questions:
1. My motor has 220 hrs on it and I have never used ring free. Do I need to do the shock treatment?
2. If the answer is yes to the first question, is the oil change really necessary?
Thanks,