Clutch basket is it interchangeable between the two years. I bought a new clutch basket for my yzff 450 but it doesnt fit the center hole of the basket is too small. My basket has a 5TA number on it

I would think that's highly unlikely. Somewhere along the way there is some link with Cagiva but if you are in the states then there a selection of new and used clutch parts including a basket on ebay

Try the 1990 YZ 80 factory replacement part. That's the only one that will do the job right.

If the part numbers were the same I would say yes. But the part numbers are different. Plus the 1988 RM250 seems to be a stand alone year. Which means there doesn't seem to be any interchangeable parts for a lot of that year and model.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_5bac37c3cb991fdb

no I think there were too many changes between 04 and 08
I dont think the seat and tanks are even interchangable

if you file the grooves, the plates will move about and likely break the basket, as the filing is not likely to be exactly even it will cause poor clutch opperation. sorry i dont know what years will fit but they dont change that sort of part each year, the bike breakers\wreckers may know that one.

Please pardon my response if it is too simple, but did you correctly align the pressure plate (Center part that tops the clutch plates and has springs bolted through it.) with the inner clutch basket (the part inside the clutch basket that the pressure plates spline onto)? If this is not aligned, the pressure plate will not fully engage the clutch plates. Both parts usually have an indicator mark that shows proper alignment.

I have a 1986 CMX 450 and have just found thru You Tube that you can use the extra capacity gas tank (3.4 gal) from the 250 to replace the 450 tank. Ordered it and it fits PERFECTLY. No retrofitting needed WHATSOEVER. Cost $99 on Ebay plus shipping. Arrived 2 days earlier than anticipated. VERY VERY HAPPY. I had too many holes in my old tank to even count them. LOL

dear sir the springs in your clutch is what puts pressure on clutch discs. these springs should all be the same length they should be measured with a caliper and compared to specs . the notchy feeling on your clutch is caused by wear spots on your clutch basket. if you are careful they can be filed down just keep them straight this will restore a smooth clutch feel. to check progress slip a clutch disk in the basket all outer dogs of the clutch plate must contact basket at the same time good luck jim

ok the only way i can help now is start fro the begging ok,,check point 1..im taking that unit is apart..ok...first you took motor mount plate off and change couple,,now you remove a silver gaurd over the clutch brake assm,,next is a brass u shaped clip..now you have the clutch brake asss..theres a c shape pin holding the clutch to the top of the gearcase..remove now all you have is the gearcase,,put the new one back together in reverse order..where good there ok..now if you already removed the to inner basket withblock drive..you can pull the drivebasket out,,(spintube)...now note this when putting back make sure you drivebasket goes up first and all the way,,next push your transmissin and clutch assmm,,up nice and smooth make sure that the brake spring which is inside the clutch doesnt hit the plastic cam on the bottom of the drivebasket..now replace you three boltsin the transmission...go back up too the top of the basket drive and put your drive block back now on top the basket drive theres to little pins and on the drive block theres 2 groves knock your driveblock down slowly and make the block go down through the pertruding pins of basketdrive,,until you get a snug fit,,now put your basket back,,,tightn down spanner nut,,,onthejob..keep me posted