Hi, I have 2010 renegade 800 xxc that I just recently bought. now regarding the rear suspension... factory set i assume, has good bounce and spring to it, was out riding this past weekend and the suspension was hard as a rock. It was very stiff!! Just checked it again and it back to pre riding condition! Is this normal or do I need to adjust the rear shock (only the rear shocks where stiff, not the front), and how do I adjust them... and youtube videos out there??