Yamaha r1 1998 i changed coolent in radiator but over heating
did you drain the acces air in the system out when you put the new coolant in on the head or barrel linings there will be a bolt take the bolt out and refill with coolant until the coolant comes out the hole then replace bolt back in hole and fill it to the required amount of coolant this is called bleeding and remeber to mix it with water e.g. 50% coolant + 50% watergood luck bud i hope this helps
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