allright i have a 2002 honda foreman es.... it will go in 1st neutral and reverse and thats all. ive tried a knew sensor called an angle sensor it didnt work and tonight i put a knew wiring harness on bc the honda shop told me that was the problem. well guess what it didnt work....
the whole thing started when i went through a lil creek that was not muddy just clear water with rocks and when i went to shift to 2nd it wouldnt. now when we would go riding through fields and i had it in fifth i would notice that it would get stuck in fifth and i would have to cut it off and then back on to get it to change gears.. that might be normal but im a car mechanic not a atv mechanic...
but if anyone would have any ideas please fill me in thanks...

 

Is your gear position flashing on the display ?