I bought a 97 GSR several months ago. It's completely stock, 153k miles. Trans master cylinder was bad when I bought it, so I replaced it and bled the clutch fluid. Clutch pedal feels very heavy which is weird. It's a little difficult to get into 1st and Reverse, just like every Honda I've ever owned, but other than those two things, it runs fine.

I also changed out the tranny fluid for Honda MTF.

Now I started driving it more and it seems like it's getting harder and harder to get into 3rd and 4th. I hold into the gear I want to go into and eventually it goes. I know better than to force it or ram it into gear, but I end up with the clutch in for a long time which is not good when you're trying to get on the freeway.

What could it be? I can't afford a lot of downtime with this car and I've never done any tranny work except clutch replacement.

 

you probably need the 3rd to 4th syncro and hub set and possible both gears depending on how bad the teeth are.

 

Isn't it just the clutch or slave cylinder? Sometimes I feel some drag when pulling it out of gear.

Would it be cheaper to get a used JDM trans? I've swapped many motors but never worked on transmission internals.