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Old 09-23-2012, 02:24 PM   #30711
Trans-Global Chook Chaser
clintnz's Avatar
Joined: May 2004
Location: Rotoiti, New Zealand
Oddometer: 3,583
So we finally got around to removing all the emissions crap off Rosie's WRR...

It's heaps lighter now but seems a bit down on power

Actually, the engine was out for a full teardown to replace this:

2008 with 30 something thousand km on the bike. The gearbox countershaft output bearing had suddenly spat all it's balls out resulting in lots of nasty noises & loss of drive. Luckily there was no other damage. Still a big job to pull the engine down almost completely to get at the damn thing, would be horrifically expensive if you had to have a shop do it. All the rest of the motor insides looked pretty good, valve clearances ok, ring gaps well in spec, clutch good etc etc.

A look around the internets doesn't bring up any signs this is a common problem, my guess is that it had been literally 'ridden hard & put away wet' by the PO & corrosion from a drop of water in the bearing was the root cause. Rolling element forensics experts feel free to comment

'03 KTM 640 LC4 Enduro

The wilderness, the desert - why are they not crowded
.................................................. .....with pilgrims?
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