To all, we have been helpful on this website, not just a gaggle of yaa hoos yelling and bombing each other. Lets try and keep it that way, thats why I spend time here.
I happen to like pure racing bikes/pedigreed with results in racing is the 449/511 that kind of bike? No it did not turn out that way, perhaps with more devel and race devel (Like what ZIpTy has done with it) but neither is a KLX or DRZ or other for that matter and these models are super popular and at the same time nowhere near the tech level of the 449/511 family. The GS450 and its follow on family 449/511 were engineered as a exercise with different tech to be different bike, thats a good thing as so many vehicles are all just freaking cloned and evolved into basically the same thing. Are there un-evolved issues , yes like every machine in its infancy.
To the write up at hand- Is there some sort of 449/511 fire trend absolutley not....the internet is good for data gathering and it appears (I have no real data to support this) that "1" 449 caught on fire---after it was down from a crash/tip over even, (not to minimize the writers bad circumstance)
For our professional maintenance and mishap data collection this does not constitute really any sort of engineering investigation.....we all ready have done that (we= ZipTy- Bill's etc) and know that the OEM fuel cap can be problematic and even with a known issue there can still be factored in user error (again Im not saying in this case, but those are all factors in investigations)
Machines fail (machine in this case is a simple plastic fuel cap) humans designed them....
....OK I can go on and on but I think you all get the idea.
PS for the writer it was written that Husqvarna adopted the GS450 BMW design as their own, it was really thrust upon the Husky Varese engineering/design group as BMW bought the company and wanted to further evolve the GS machine, Im sure, to try to get better ROI on their 450 project, because it really did not go as well as many expected, myself included after seeing the very cool BMW tech preproduction GS450 demo bike.
The Italian/German rework of the design (449/511) is a well evolved design using the foundation set forth in the original BMW GS design, as well as with what they had to work with by direction of the BMW corp engineering bosses. That entire line as it was is a dead model family line. Luckily right here we have high level devel and evolution being done with these 449/511 bikes for those that have them, just follow the dots and build you own 449/511 into whatever you want it to be or in some cases kind of need to to be (like this fuel cap "update" mod) as usual long winded from 'accio....
Point instead of any bashing/model bashing etc use these issues to find solutions/bullet proofing/devel/ EVOLVE the machine with knowledge gained from these issues- we all benefit and enjoy the ride that way.