I agree with Dave's suggestion to go after more horsepower by making modifications in areas other than piston stroke. You'll increase horses quicker and have a more or less tried and true modification using "standard" components.
But, I like the idea of a stroker motor because you'll increase torque and torque can easily be felt with the seat of your pants. In my mind, the KLR engine with its over square arrangement is down on torque. I miss the torque of the old long stroke British twins and singles and would like to feel a bit more torque when riding my KLR.
What's more, just because the stroker modification may not be practical in terms of increasing h.p., you just may enjoy the modification process. And sometimes tinkering on a motorcycle just feels good and doesn't need to make total sense or be practical.
Last edited by Norton 850; 11-01-2019 at 04:45 PM.
Reason: added "long stroke" to British twins and singles