u/Short_South_9447

I just got a 2007 crf150rb to ride and did all the maintenance, engine oil, transmission oil, coolant, filter, carb clean, jetting, EVERYTHING. I took it out at the mountains and on my third ride I got ten minutes in before the engine stopped and I had to pull over, the back wheel didn’t lock up and right after it stopped I could still kick it but it was hard and it wouldn’t do anything, I did some investigating and saw that there was oil across my back wheel that I think was coming from a tube out of the engine and when I checked the oil it was bone dry. I took it home and after it cooled it wouldn’t turn, only when in gear it would turn a little but make a clunking noise. I pulled the spark plug but that didn’t help. Does this sound like a sized engine or more like a dropped valve (my brother who knows a little about engines said it could be a dropped valve) and what should I do next. At this point I haven’t done anything more to it, should I put oil in it or would that be a waste? If it is a seized engine or a dropped valve would it be worth fixing? I don’t know a whole lot about engines but I’m willing to put in a lot of time and effort and my uncle works in a garage so I might be able to access some more speciality tools. Any other advice would be appreciated. PS, sorry for the long ass paragraph

I just got a 2007 crf150rb to ride and did all the maintenance, engine oil, transmission oil, coolant, filter, carb clean, jetting, EVERYTHING. I took it out at the mountains and on my third ride I got ten minutes in before the engine stopped and I had to pull over, the back wheel didn’t lock up and right after it stopped I could still kick it but it was hard and it wouldn’t do anything, I did some investigating and saw that there was oil across my back wheel that I think was coming from a tube out of the engine and when I checked the oil it was bone dry. I took it home and after it cooled it wouldn’t turn, only when in gear it would turn a little but make a clunking noise. I pulled the spark plug but that didn’t help. Does this sound like a sized engine or more like a dropped valve (my brother who knows a little about engines said it could be a dropped valve) and what should I do next. At this point I haven’t done anything more to it, should I put oil in it or would that be a waste? If it is a seized engine or a dropped valve would it be worth fixing? I don’t know a whole lot about engines but I’m willing to put in a lot of time and effort and my uncle works in a garage so I might be able to access some more speciality tools. Any other advice would be appreciated. PS, sorry for the long ass paragraph

I just got a 2007 crf150rb to ride and did all the maintenance, engine oil, transmission oil, coolant, filter, carb clean, jetting, EVERYTHING. I took it out at the mountains and on my third ride I got ten minutes in before the engine stopped and I had to pull over, the back wheel didn’t lock up and right after it stopped I could still kick it but it was hard and it wouldn’t do anything, I did some investigating and saw that there was oil across my back wheel that I think was coming from a tube out of the engine and when I checked the oil it was bone dry. I took it home and after it cooled it wouldn’t turn, only when in gear it would turn a little but make a clunking noise. I pulled the spark plug but that didn’t help. Does this sound like a sized engine or more like a dropped valve (my brother who knows a little about engines said it could be a dropped valve) and what should I do next. At this point I haven’t done anything more to it, should I put oil in it or would that be a waste? If it is a seized engine or a dropped valve would it be worth fixing? I don’t know a whole lot about engines but I’m willing to put in a lot of time and effort and my uncle works in a garage so I might be able to access some more speciality tools. Any other advice would be appreciated. PS, sorry for the long ass paragraph