When my 21 was stock all bar a KISS delimiter for the ignition, I never had a problem. I reckon that was in the low 50's.
I rode it 100 miles flat out (and I mean flat out - it was like a 100 mile plug chop Fontyyy!!!) to Thruxton and back one year, and it never missed a beat! The journey up was fairly mild for March, and the way back was freezing cold and almost torrential rain... not a single splutter!
It's only since messing around trying to get the few HP over 60hp with stock bits that I've had issues, and two of the three issues have been my own fault/stupidity! 10 years of total reliability, 1 year of destruction! Doesn't take a brain surgeon to work that one out!!
We've discussed this before, and come to the same conclusions! Using the RGV as an example, as it's probably the most common full power 250 that was sold in the UK: do you think Suzuki would've released a bike onto the market that they knew would be neglected and thrashed in equal quantities, if they didn't think it was reliable?
I say "true"; if set up conservatively, I don't see any reason why a 2-stroke won't ever seize, but you also won't be getting the most out of it, and that's what they're all about - screaming, stinking, and tinkering!!!
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Andy.
NSR-WORLD.COM
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