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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
to bore or not to bore? Lost soul here, need guide
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[QUOTE="sethrof250, post: 665965, member: 46920"] Hello, first i would like to say i am new to DRN and the forum. Thanks for having me. Second, over the weekend i found a 01 CR250 for $1000 that some guy was wanting to get rid of. After talking with the guy, he said it needed a new top end. I figured for a couple hundred bucks i could throw in a new top end and be on my merry way. So i bought it. I got it to the shop and tore it down. Yes, it needed a new top end...I started tearing the carbs out and there was a 1/4" ring of dirt and grease inside the "intake"... Well i took the piston out and the cylinder sleeve walls are pretty torn up. Well now i have to determine what course of action to take. My goal is to have a awesome running, reliable, low cost(install and upkeep) bike. I figure i have 2 options. I need your help deciding which is the best for me and my goals. Option 1 - buy a new cylinder, piston, rings, gaskets, bearings, etc and basically make the bike stock. Option 2 - bore it out, installing a larger piston kit, etc. I am not a rookie when it comes to ridding, i do have a shortfall when it comes to bike repairs. My friends tell me to pay tht $400 and get a new Nicasil cylinder, others tell me to bore it out and install a larger pistion. What are the pros and cons of getting it bored? what other things do i need to be concerned about when doing this upgrade? Do i need to upgrade any other parts? your advice is very valuable to me. Help me if you can [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
to bore or not to bore? Lost soul here, need guide
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