If the bike's been sat that long, the plates are possibly a bit rusty. That will cause the clutch to slip.

You'll probably find that removing the plates and "roughing" the steels up with emery cloth will sort it out.

Don't over-tighten the pressure plate bolts on reassembly, as it's easy to break the posts off the clutch hub. I've seen plenty with only four posts!
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Andy.
NSR-WORLD.COM

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