- Sep 17, 2001
My cousin recently got a CRF 150R and this weekend while trailriding with his father and myself his bike started to boil over on several occasions. We were riding pretty tight, low speed terrain. While stopped and idling waiting on a slower rider, his bike started to idle pretty high and we noticed coolant spewing out from beneath the bike. After we got moving again it seemed to cool down and idle improved, but it started happening again later on in ride. Bike is bone stock and just came back from dealer after a cam recall. He is a pretty experienced rider for his age, but does not race or ride MX. Is this bike just not going to be happy trailriding in tight terrain?