89 jug on 86 bottom

[smoker]

What do you need to do to use an 89 jug on a 86 bottom? Uh i should have put for a trx250r sorry.

[FTZPoweredBlaster]

I think it will go right on without a spacer plate.

[O.J. Simpson]

All the trx cylinders are the same.

[Bad Ass Honda 250r]

i thought that the port work was better on the 88-89 cylinders.... maybe not... idk

[smoker]

so honda just put the spacer for the long rod motors and it will fit no trouble right?

[Bad Ass Honda 250r]

im not sure, but i think if you run the long rod piston (88-89 piston) then you dont have to run the spacer... but if you want to run the 86 piston then you need to run the spacer... I AM NOT POSITIVE!!!!

[all250r]

Originally Posted by smoker

What do you need to do to use an 89 jug on a 86 bottom? Uh i should have put for a trx250r sorry.

By 86 bottom, I am figuring you're talking about an 86 crank. The cases don't matter.
In that case all you need is to run an 86 piston (you cannot run an 88-89 piston).

[Les]

I copied this from another forum awhile ago, can't give credit to who posted it though as I didn't copy that...

the following works:

85/86 crank, any year cylinder, 85/86 piston
87-89 crank, any year cylinder, 87-89 piston
87-89 crank, any year cylinder, 85/86 piston, 5mm spacer plate