Took my 2000 V92TC out for a ride last week for the first time since winter set in. Bike ran good as usual but I noticed it was hard to get in 2nd gear. Didn't seem to want to shift in easy but didn't want to pop out of gear. Now I know I need to change my oil since it's due and I used Castrol Synthetic Blend at the time because I didn't know what oil wold be best at the time. Any comments?