i recently took my primary case off. when i out it back on and filled it up and tried to adjust my clutch i couldnt get it to work right. when i try to go into first from n it will just go down. no clunk, no noise, just push it down and it stays in n. then there are other times when it goes right into gear no prob. but when it doesnt go into first all i have to do is go to 2nd then back to first and its fine. i dont know what to do any suggestions are appreciated. thanks