yz426 5th gear screwed up

[offroad4lif3]

So i traded my truck for a bike that was suppose to be in prime condition, ended up meeting the guy in a big city with nowhere to test ride, and there was no way i was gonna fire it up in tacoma and ride it around dont want a $600 ticket. Anyway i take her out to some logging roads and when i put her in 5th it feels like there are teeth missin on the gear. I want to make the bike a motard/dual sport, with the gears bein so short could i get a wr bottom end and swap that in? Or should i just pull it apart and replace it. The bike still runnin super strong and i want to start doin some racing maybe scrambles but i dont wana wait till she goes to replace the gear, also on limited budget. Ahh i want to feel her in 5th so bad. Maybe i should go find a wr at some dealership and "test ride" it to feel how much longer the gears are. Thanks for any input.

[grayracer513]

It would be very unwise to wait any longer to replace the damaged gears (5th and 3rd gear pinions (on the mainshaft) and the #2 shift fork). The engine runs in the transmission oil.

Any or all of the gears in the WR can be swapped in.

[offroad4lif3]

thanks alot, thats what i wanted to hear. Is there a kit i can get with all the gaskets i would need to replace? Also any tricky stuff i would need to know about? How hard is it to adjust timing? Theres really only one way you can do that right? Thanks

[grayracer513]

The big thing you'll need is a manual:

http://www.yamahaownershandbook.com.au/?r=0

There are kits, but how inclusive they are varies quite a bit, and they don't usually have seals in them.