cr125 87/88/89 cylinders

[mainline]

I've been told these are all the same, but I'm sure I read back in the day that at least the porting was different on the 88 model?

[Simo63]

I've been told these are all the same, but I'm sure I read back in the day that at least the porting was different on the 88 model?

I've got that spare one off my 89 CR125 if you wanted to check it out Paul

[Nathan S]

I've been told that the PV is different between all three - so you need the matching ATAC assembly.

No idea if it is correct or not - I might even remember to check one day.

The motors improved (slightly) each year, so I don't foresee an negatives by fitting a later barrell.

[mainline]

Thanks guys. I remember reading an MXA article on the 88 model where they weren't too impressed with it compared to the 87.

I might see you at the Wyaralong interclub race Craig?

[CRTAD313]

Power valve is the same on all three, 89 is nicasil bore others are not.

[mainline]

Thanks, I ended up finding an 87 cylinder that was only on it 2nd bore so I'm good to go.