Quote:
Originally Posted by SpudRider
No, I have not heard of this problem occurring with any other NC250 engine in other motorcycle.  I'm pleased to hear that many RX3 owners have reported their valve clearances have stabilized.  However, if you ride many miles and the valve clearances won't stabilize, something is wrong. |
Anomalies in manufacturing. We all know it happens. For instance, if you mosey on over to the Ninja 300 forum, you'll see some examples of big failures at the bottom of the engine; these are rare, and not a 'thing' but once in a while an unlucky owner is going to get a bad surprise. I'm guessing yours is similar.
The sheer number of these things around, I'd be surprised if patterns didn't emerge pretty quickly.