here is a NEW 86 RM250 cylinder.it is the same as the 87 LT250 cylinder but has more aggressive port maping.just thought id share my find for those who want more topend or more power.will fit 88-92 buy you will need to get new reeds and stuff.
RM250 Cylinder

 

you should get that bro i telling ya my 87 rips compared to my 90 lol

 

i would be all over it if my quad was paid off.all of my money goes to my dad and sister to pay them off.im interested in that boot.how much you want for it?

 

ill send it out bro take good look at it when ya get it its older so has lil dry rot going but not all way through and i covered the outside with yamabond in case it went all way through,when i couldnt find my air leak but was a crank seal. haha oh yeah send me ur addy again . how did that cap wrk?

 

u want any $$$ for it? ill PM you my address.im on a different comp so it should work.ill check it out real good and make sure i get all the cracks fixed or what not.is it that big of a difference between ur 90 and 87 powerwise?the fits like new.i have to pick up the retainer and screws i ordered from ronnies tomorrow.then i get my headgasket on friday.hopefully im done fixing for a while...