Honda 300ex won’t shift up or down plz help!!!

[N8dawgg]

I have a Honda 300ex trx. Long story short the engine blew years ago and recently we started to rebuild it piston,rods,timing chain,cams, and clutch. In the process of rebuilding it we noticed it wouldn’t shift up or down. We think it’s stuck in neutral but it won’t shift with the clutch engaged, I check the clutch and everything seems to be working/engaging fine we also checked the transmission and even rebuilt it  (looking off a diagram) . Please help!! Thanks!

[Matman]

Can you get it to shift if the motor is off and you are pushing the ATV forcing the gears to move and engine to rotate?

Can you confirm the clutch is releasing and engaging by pushing the quad with the motor off?

Revisiting and wondering if I'm overlooking this EX model is an electric shift?

Wondering if the EX model is electric shift or manual?

[Dion Braud]

The 300EX is a manual transmission.

 

[motowelder97]

Make sure that you are turn both the input and output shafts so the dogs can align.

[N8dawgg]

The engine is out of the 300ex if you grab the shifting tree that the shfiting lever connects to you can go through all the gears but if you try to shift via  shifting lever it won’t shift through the gears

Message on insta @ynw._nate I’ll send a video of what it’s doing 

[Dion Braud]

That motor uses the more sophisticated ratchet pawl design for the shifter as opposed to a claw/Star design. I strongly suggest you get a shop service manual and go through the transmission chapter pertaining to the shifting mechanism and go from there. Too much to explain here and without you and the machine present its very hard to teach you about handling those little ratchet Pawl's and their springs along with their retention plate.

[Dion Braud]

.

[N8dawgg]

@Dion Braud ok thanks! 

[redhosser]

Did you ever figure out the problem? I have one the was apart and i put back together but shifter wont move or go into gear