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Honda MX & Off-Road Dirt Bikes
1989 Honda CR250 Loss of Compression
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[QUOTE="ChumScrubber, post: 1172837, member: 76410"] Hello all, I have owned my bike for 4 or 5 years now and it has never failed me until last weekend. I was riding out in the dunes and all of a sudden second gear started losing power. It did not happen super quick, but more like over the course of 30 seconds to a minute or so. Just now power when I throttled up. So I shifted into first and it felt better, then I shifted back into second and the motor died on me. After that the bike was extremely easy to kick over and it would not fire. I immediately thought loss of compression. I am pretty experienced when it comes to working on small block Chevy’s, but I have never torn down one of these 2 strokes. How likely is it the rings vs. the pistons? Or maybe even something else? Can anyone give me a good idea of what you think the exact problem is? Or is this something that just has to be opened up and looked at to figure out? I won't really have time to mess with it until this weekend so any help anyone could offer in the mean time would be much appreciated. Thanks! :nod: Also, is there a good thread around here for some good general maintenance tips? I got the bike when I was too young to touch the ground while sitting on it and I probably could have treated it better over the years. I changed the trans oil often but haven't really done anything else. Now that i'm older I want to keep it as tip top as I keep my car. Thanks again. [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
1989 Honda CR250 Loss of Compression
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