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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
03 yz250f rebuild
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[QUOTE="Natedawgrebuilds, post: 1459656, member: 131758"] I hear what ur saying rich and i finally got to my piston today how holy shit does it every look ruff. Piston has deep vavle stamps on it and the piston wasnt at tdc but the little dot in the timing cover is align. So i play with the piston till it got tdc and the mark shown in the timing cover is HI. I know it says dont turn the crankshaft when vavle are out due to having to do timing. Anyways i already need to do base timing because i did some diggin around and a found a old magneto in the bag of parts that the previous owner gave me, the thing that goes into the crankcase and bolt on with the nut u use to find tdc. So im thinking buddy didnt do base timing but the bike back together and sold it to me. So i have to do my base timing as well has new piston and rings and probably like you said valve spring and forsure check my valve for damage i can visual see any but will measure it forsure. I will be posting more info on the build when the parts get here. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
03 yz250f rebuild
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