As stated above, if you use JASO MA rated oil in your KLR, as specified in the owners manual (viscosity and LEVEL), you can be assured you will not experience any oil related issues.
Also note there is JASO MB, which is for non-motorcycle engines.
I'll have to say, not necessarily true on both of those statements R/L.
As I suggested earlier, using a JASO MA / MA2 / MA3 approved oil should reduce the possibility of starter clutch & drive clutch slippage.
Other possible oil related issues could still happen.
JASO MB rated oils can and are being manufactured specifically for use in Separated Engine motorcycles.
Like Harley Davidson Big Twins and even the larger Honda CRF motocrossers.
Lucas Oil, High-Performance Synthetic 4T Motorcycle Oil with MOLY, in 10W40 API SJ / JASO MB is one such example.
Note printed in Tucker catalog, "Note: Engine oil only. Not suitable for wet clutch applications."
I recon that means it is also intended for use in Ducati engines and transmissions with DRY Clutches.