welcome. if you are going to stick to stock ign, just use the stock cdi, dont waste money on a aftermarket cdi box. if you want to upgrade the electronics, pick up a 02-07 cr250 ign system. the best ignitions are the 01 cr ignitions but they dont make the parts anymore for them, so the prices are ridiculous, and the 02-07 work the same. however, the cr ignition has a lighter flywheel so your riding skill level will determine if you can deal that in the woods.
there is vforce3 reed blocks for the trx250r, it is model #v305b. if you want to go with those, just buy the correct one for the trx250r, dont worry about the 'torque' spacer, not needed at all, doesnt add 'torque' lol.
what pipe does ur bike have? what carb? if these are all stock, this is the first way to free up the detuned motors potential before digging inside. let us know what u have and we can go from there
