I suppose I should rise to the defense of the much-maligned KLR650...
"Huge and heavy" are relative terms. Compared to a GS850, a KLR650 feels like a nimble little bicycle. What's interesting is that with a decent aftermarket seat ($165 for a Seat Concepts kit), a KLR650 equals or betters the GS in terms of all-day comfort.
Power is "adequate". I certainly wouldn't call it "underpowered". You can load it like a mule and plonk along the interstate at 80mph all day long if you want. Or take on gnarly singletrack if you have the skills. And it's the perfect mount for urban or countryside adventures -- suspension immune to crappy streets and back roads, tall and weird looking the better to see and be seen, and an entertaining powerband.
It's a great traveling machine. With a big tank, all-day, all-week comfort, and plenty of room, you can take what you need for any adventure. And indeed, you'll find KLRs probing every corner of the world. You see DRs and XRs on trailers far more often than you see them plonking along a remote back road on the way to some nowhere in particular a few hundred miles away.
And let's not discount the power of ubiquity. The KLR is a thoroughly understood machine -- there's a solution for every problem and a fix for every nit.
Best of all, there are tons of KLRs out there in good shape, cheap. Good luck finding a DR-Z that hasn't been ridden down to a low-compression nub, or a DR650 or DR350 that doesn't look like it's been through a rock crusher. Every XR I've seen looks like it's been dragged for a few miles down a bad road. And you'll find that sellers are still demanding a premium for these pretzeled, smoking remnants.
The doohickey parts are around $90 for an Eagle Mike doohickey, torsion spring, rotor bolt, and gaskets. Odds are this has been handled on any used KLR, but it's worth asking. Yes, the doohickey problem is real and still an issue, even on 2008+ models with the "improved" thicker doo.
From there, the sky's the limit. I'd recommend crash protection if you ever go off-pavement -- SW_Motech crash bars, a skid plate, and Tusk handguards will make the bike mostly immune to survivable crashes. I've also upgraded the front brake on my 1st-gen KLR, and it's slathered in damn near every farkle available.
There are many KLRs, but this one is mine.
You might notice the front end on mine was remodeled courtesy of one of Bambi's idiot cousins... yep, that's a GS650GL headlight.
It's fun to go places and do things.
It's also fun to go places and see cool things.
And it's tons of fun on nasty country roads (you're riding along with Tim here -- he's chasing me):
https://plus.google.com/u/0/1148126...6050162245894984882&oid=114812650772464406336