250-500cc New member, some WR250 questions

250 is a very torquey motor when up to it flat rips, feels much quicker to rev than my 360 bit it would some how feels less nimble tho that may be the excess speed in corners as it picks up better.
Ktm 300 against 250? Top speed perhaps its all down to the start an howmuch abuse you want to give you machine.
Ufo and acerbis are very good plastic manufactures originals are acerbis look on underside of your tank to see for yourself.
500 means merciless thrash motor to me, replate cylinder and go from there if you feel like you need more then stick 300 on it but ride it first and see how you like it.

Dont forget to let her warm up before you ride hard like 5-10mins before the beans the cooling system it very good.

While you have the jug off it , you should check the rod/bottom end play. It might give you a better idea of what you are in for. $500.00 bikes often look like deals but cost a lot to get back up to snuff. That being said, you can part it out, make a few $$$ and put it towards something else.

The bottom end seems to be in good shape, there is no up-down play in the bearings anywhere throughout the cycle.

If there was, this bike wouldve become a money-maker, not a money-spender.

I've run cylinder problems worse than that with no issues. Consider new piston and rings and run the heck out of it. For sure check bottom end play. Total investment for all mods should put you at less than $1000.