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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
CR125 Top End Rebuild, NEED HELP!
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[QUOTE="laramik, post: 1393558, member: 119891"] Alright guys, I'm new here and relatively new to 2 stokes but I know enough to get by to a degree. I recently picked up a 97 CR125 in pretty decent shape for 250 bucks. The guy I bought it from said that it needed the cylinder rebored or replated and should be sent to uschrome. However, upon inspection, The cylinder is in great shape, no gouges whatsoever and maybe the tinyest of chips near an exhaust port. The piston however was domed badly and had a nice portion that eroded away towards the front. I ordered a new piston yesterday and my compression is now excellent. I followed the instructions by Eric Gorr? I think? The old piston also had a ring on the top which i guess indicated possibly a bad wrist pin bearing. The one in there certainly does not hold the wrist pin tightly by any means. Im missing a couple different crankcase bolts, 1 by the kickstarter mechanism which Im guessing is why my kickstarter return spring isn't working, and another by the water pump. I filled her up with oil last night on the cranckcase cuz it was bone dry, what seems to be the drainplug on the bottom has nothing that I could use to get it off?? Is the drain the screw on the right side of the case not the magneto side? there is what appears to be a screw with a brass washer that might be a drainhole? Any idea how much oil and what kind goes in there. I mixed up some pre mix at 32-1 and lubed up the cylinder with 2 stroke oil before installing the piston. I am getting spark but it won't start. The petcock was all gummed up so I'm guessing that its the same inside the carb so I'll clean it tonight. my Front forks are leaking a very little but everything else appears relatively ok. Any advice on things I may be missing and what to look out for would be appreciated. I am desperately trying to get this running by this weekend so I can sell it and pay my rent. So please help. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
CR125 Top End Rebuild, NEED HELP!
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