88 crank i 86 bottom end

[tman]

Just torn the top end off my 86 R and there's tranny oil in crank. I know i need seals, but if I need a crank will a 88 work in a 86? It would be 86 bottom end cases with 88 crank (long rod), spacer plate, 86 piston, 86 cylinder ? (right) Can the main seals be replaced with out splitting the cases? The left seal can right?

[beerock]

if you change the crank your better off buying new main bearings and seals for both sides. do it right the first time. not just one seal. yes a 88 crank will work.

[tman]

thanks, beerock. Yea, I think doing both bearings and seals is a good idea.

[Lonestar_R]

buy 88 bearings....they have one more ball in them......at least that is what I was told......

[beerock]

Originally posted by Lonestar_R
buy 88 bearings....they have one more ball in them......at least that is what I was told......

i think its 89 bearings that have one more ball nto sure someoen want to shed some light

[JTRtrx250r]

ive heard the CR500 is the same size and has 8 balls instead of 6... or 7, dont know what yr tho.... anybody:confused:

[Rich250RRacer]

It's CR250, part# 91008-kae-731

[Lonestar_R]

ok maybe it is 89 I may be mistaken