does anyone know where to find a big bore kit, plastics and a complete exhaust system for a 1983 atc 250r

 

big bore kits show up on e-bay from time to time (for the air colled models), honda made a compleate "300" kit, new cylinder, head, piston, rings, and jet. expect to pay $350 to $500, get compleate, because pistons and rings from honda are probibly not avalable any more. mayer makes reproduction plastic, all plastic (from honda) is no longer avalable. for a pipe, e-bay. good luck, adrian

 

thanks

 

Honda Big Bore Kits for Dirt Bikes, ATVs, and Street Motorcycles

Bear Boring both makes a big bore kit

flotekperformance - Home REALLY good for porting the cylinder to get the power you want

DG makes a pipe ,, and there is always E-Bay

Try Airfoolers.com lot of good information about the air cooled R's there