Main Crank Bearings

[Lonestar_R]

Does anyone know what year of main crank bearings had the extra ball in them.....was it 88 or 89.....and does anyone have the part number...thanks in advance

[Rich250RRacer]

I've never paid attention to which year, I've always ordered bearings for a CR250, they are the eight ball design. Part# 91008-kae-731

[beerock]

Originally posted by Rich250RRacer
I've never paid attention to which year, I've always ordered bearings for a CR250, they are the eight ball design. Part# 91008-kae-731

rich im to lazy to figure it out but maybe you could find out what year trx bearing has 8 balls. i think its 89 I just forget and im too lazy.

[lee37vernon]

i took apart my 89 , never been apart and it had 7 ballers in !
i just ordered any bearing and they came with 8 , i'm sure if you DONT buy them from honda that this 8 ball design will be a replacement for the 7 ball one .. service has the part no which i gave my bearing man and 8's is what i got ...

[Rich250RRacer]

Originally posted by beerock
rich im to lazy to figure it out but maybe you could find out what year trx bearing has 8 balls. i think its 89 I just forget and im too lazy.

I honestly don't know if 250R's ever came with an 8 ball bearing, in fact I don't think they did, which is why I always ordered the CR bearings. I did check my microfiche and it shows bearings for 86-87 as one number and 88-89 as another.

[hollywood250r]

88 and 89 motors came stock with eight ball bearings! If your 88 motor had 7 ball bears either one of two things are true. 1, someone replaced the original 88 bearings with 7 ball bearings or 2, you bottom end is not an 88.

[beerock]

well when ya buy case halfs with bearings there 86 style. so usually when i build motors i order a extra set of main bearings to swap them out. ;) i just forgot what year had 8.

are ya positive hollywood?

[Lonestar_R]

where is the cheapest place to buy case halfs.....right now I think service honda is the cheapest...anyone found any cheaper

[hondardr4life]

You need new case halves too??

[Lonestar_R]

I have a brand new tranny...and I think I'm gonna put together a new motor.....I might end up keeping it......unless you wnat it......the motor will be brand new...except the cylinder, head and crank