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Everything Dirt Bike
General Dirt Bike
1989 yz 125 bottom end
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<blockquote data-quote="ossagp" data-source="post: 159629" data-attributes="member: 1650"><p>It is a pretty simple engine. i have a batch of yz 125's from the 94-2004 era. never needed a case splitter though i have some. you can easily make one from a harmonic balancer/steering wheel puller though.</p><p></p><p>getting the crank out is pretty easy. if it wont lift out it will come out bearings and all with a little bit of heat applied to the cases via a propane torch or heat gun. oven works too with lots of drawbacks if you have a significant other or mother. </p><p></p><p>just photo as you go and at least have an exploded view of the parts. </p><p></p><p>get the press and alignment work by someone who does lots of them. if you have a press and lots of time I will tell you how I do it though.</p><p></p><p>Dan's price would have me out of the DIY business if he was closer.</p></blockquote><p></p>
[QUOTE="ossagp, post: 159629, member: 1650"] It is a pretty simple engine. i have a batch of yz 125's from the 94-2004 era. never needed a case splitter though i have some. you can easily make one from a harmonic balancer/steering wheel puller though. getting the crank out is pretty easy. if it wont lift out it will come out bearings and all with a little bit of heat applied to the cases via a propane torch or heat gun. oven works too with lots of drawbacks if you have a significant other or mother. just photo as you go and at least have an exploded view of the parts. get the press and alignment work by someone who does lots of them. if you have a press and lots of time I will tell you how I do it though. Dan's price would have me out of the DIY business if he was closer. [/QUOTE]
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Everything Dirt Bike
General Dirt Bike
1989 yz 125 bottom end
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