Originally Posted by Unstable Rider
The KLR will easily haul three times it's own weight.
I think you've exceeded its GVWR.
The engine is VERY similar to the KLR600. When people say the bike has been around since '87, it is only warmed over from '84. It was a modest engine then.
As for improvements: I REALLY like the 705 piston. I didn't put it in expecting it to be like an inline 4 or even my revvy twin, but it does make the bike more willing. And fun. I'll admit it, I have fun on an underpowered old design.
I am not even considering hot cams, but there's more help there. Total cost of piston, sleeve, boring, and cams would be more than buying a different bike.