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Oil how much?!?!

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I am sure this is has been covered a few times.... We just got a 2007 crf150r and the motor blew the third time it was out. Other than a blown motor… Love the bike, my kid loves it, not a racer just a track rider, said much easier to ride than his YZ 85. Said it is much easier to corner than the 2 stroke. Easier for me, one gas can… I just want him to fun and be safe, I have enough rods and screws for the all of us! :smirk:

Any how many cc’s on each side? 650cc? Also we will need a complete top end, cam, piston and so on. Anyone go to a 170cc? Harder to sell later? Much faster? If you go to the 170cc then you to mess with carb?

Thx for your help!! Hard to do research having 6 kids!

Autism MX!

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We just got a 2007 crf150r and the motor blew the third time it was out

What did you do run it out of motor oil??

Any how many cc’s on each side? 650cc?

I take that your ref to motor/transmission oil there is a dipstick for the Motor oil and it about 3/4 of quart of oil with a new oil filter as for the Transmission side there there is a overflow bolt rigth next to water pump cover just like on all old 2 stroke, any way it takes just hair over 1/2 quart oil.

Like any Big Bore kit it just give you more hosepower and torque and yes you have to re-tune the carb a bit like tab bigger main and pilot jet it should tell this in the manuel that come with kit.

Edited by shspvr

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Nope, just unlucky, the Oil Pump died. Yep "motor/transmission" both sides. Thanks for info!

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Nope, just unlucky, the Oil Pump died. Yep "motor/transmission" both sides. Thanks for info!

I was just wondering was it the plastic driven gear for oil pump that fail?.

Just so you know the Oil Pump them self do not fail but 99% of the time it the pressure rellief valve is what fail or oil passage seal that fail or the oil jet on left side of crankcase may have come out.

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To be honest I don’t know, my mechanic just said the oil pump was bad. I took off the value cover and saw one value had blown a piece of the value guide apart, meaning there was a piece of metal laying inside.

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