Originally Posted by 8gv
The guy at the KAWI shop says the KLR250 takes "10 20" fork oil. So is that really a multi viscosity oil or a choice of viscosities? He didn't know. At 235# plus all my camping crap, I'm somewhat heavier than a standard FAA seat occupant. Would 20 weight oil be better for me?
It's been a few years since I messed with my old KLR250 (miss that bike!
) but if I remember correctly it had air/oil forks and the air pressure made a much bigger difference to the damping and rebound than a minimal change to the oil viscosity. If your bike has air/oil damping you might want to try just pumping up the air a bit and see if that helps. Get yourself a low-pressure guage to check and REMEMBER - it only takes a few PSI so I always used a bicycle pump rather than a compressor which could blow your seals if you hit it too hard DAMHIK