engine rebuild question

[flyingace]

I'm trying to determine if parts from an engine I'm tearing down can be used in my current bike. I'm confused with the measurement specs in the manual. They give you a range and a service limit, and I'm not sure about measurements that fall in between. For instance, some of the piston diameters I've measured fall just slightly below the range ( by .0001 or .0002), but this is well above the service limit. Are these useable, or must I get new oversized?

Thanks,
Ace.

[Guy]

Pistons are tapered (they expand more at the top than at the bottom) so it's important you take your measurements correctly, i.e: at the base, perpendicular to the gudgeon pin.

[flyingace]

Actually, they recommend taking measurements at the base of the skirt and 15mm up and using the smallest of those readings.

[Guy]

They also quote measurements in metric, not in inches. You'll find this applies to all japanese motorcycles.