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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
310 big bore kit
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[QUOTE="bclapham, post: 653412, member: 25565"] the big bore kit will probably change the jetting, just like any other modification does. there is more to doing a big bore than boring and plating- the bored cylinder must also be ported to make it run right and you have to grind the powervalves to clear the bigger piston and cut the head. i think for the 310 that the crank cases need to be clearanced for the bigger piston too. Eric does all the work and then has US chrome do the plating, your best bet would be to crate the entire engine and send it to him- his prices are the best going and all you will have to do is drop the engine straight in when it comes back. give him a call first since he is moving shops so he will have a bit of down time. if you use the search in this or the 2stroke forum on "310" you will find a ton of people that love that kx310 [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
310 big bore kit
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