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Since my bike is all in pieces, I thought it'd be a good idea to replace the piston with Wiseco Pro Light Kit and bearing.
bike is a 05 200, oem piston, cylinder looks good, not much changes since 6 months ago, not much carbon build up on top of the piston more like a bit of oil.
I remember reading somewhere that there was different size piston.
How do you know what size you need?
thx

wilf

KDX200
Pro-Lite
Electrofusion Bore - Cylinder
sleeving or replating required
for oversizes.
1986-06 66x58


66.00 711M06600
66.50 711M06650
67.00 711M06700
67.50 711M06750
68.00 711M06800

great!
So what about the hard to find lettering on the cylinder A, B or whatever I remember. Did I just dream that or sumthin?

so the differnt size apply only if you have to bore / sleeve / replate.
Kool thx Inda

scheckaet wrote:great!
So what about the hard to find lettering on the cylinder A, B or whatever I remember. Did I just dream that or sumthin?

If you're still lookin' for the cylinder letter you'll find it at the front of the cylinder near the top on, I think on a horizontal surface. The "B"s are the most common I heard . . .

so the differnt size apply only if you have to bore / sleeve / replate.
Kool thx Inda

You're mixing a couple of differnt apples..if not some oranges, too.

..there's a joke in there somewheres.......I'm on a roll today!!!


Wiseco doesn't group their pistons according to manufacturing tolerance differences like Pro-X does.

In the stock bore, there is one size from Wiseco.

From Pro-X, there are the alpha-designations from A-G, those numbers are stamped on both the head and the cylinder. The difference between one alpha and the next is 'about' 1/2 a thousandth.

Notice that is FAR from the Wiseco differences noted above. You're not going to be picking and choosing between oversize Wiseco's in a given bore size, thus the bore/sleeve/plate idea.

Here's a cylinder alpha stamp: