I have a 2005 raptor 660 and all of a sudden it is really hard to shift into second. I keeps getting stuck in neutral. If I use my hand and give it a good yank it will go into second and ride fine in that gear, it’s shifting into second that is an issue. This happens whether I use the clutch or not and even if the engine isn’t running. I’m prepared to pull the motor and take apart the transmission but I don’t know what to look for messed up. Please help.