Andy wrote:
...expect to replace it in the not too distant future.

On reflection, this is probably a little pessimistic, but bear in mind that during my time with Performance Engineering alone, I saw a large number of dead cranks! Although I can say, without fear of contradiction, that every crank we had in to rebuild, that had often been claimed to have come out of a running bike, had had a wrecked centre seal!

In my experience, you will generally know when it's on the way out. The bike usually gets harder to start, and idle often becomes a little erratic, and will either "hunt", or the revs will hang until you load the motor a little. As the seal gets worse the bottom-end will deteriorate somewhat, but at higher RPM will quite often run well. It's something you'll just have to develop a feel for really, but seeing as you have the kit, it wouldn't hurt to do a leak-down test every 6 months or so.
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Andy.
NSR-WORLD.COM

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