I just want some tips on how to change the oil on the yz426. I’m new to this, it’s my first time, if you can help i would appreciate all the info i can get:thumbsup: ?1) Now is there only one oil that runs through the whole bike, or is there two separate oils, (trans & motor)? Im thinking theres one? ?2) Off the top of your head what parts do I need to do this maintenance project (oil change)? Do they make a re-useable oil filter? ?3) should I replace the oil pump? ?4) What kind of oil should I use if im riding on the street/SM? I Thank you all in advance for your help and feed back, I really like to come here and rely on all you TT members because I feel you all know the most with hands on experience.