I have an 09 Yfz450R and i broke my shift shaft inside the engine. I looked through some threads and kinda figured out how to change it but i couldn't find out if i should replace anything else besides just the shaft. Do i need any gaskets, seals etc? Also i know i have to drain the oil but do i have to drain my coolant as well?
The best you can do is, buy a service manual for the yfz450r 09 on the internet. it´s about 5-10$, and there is all the information you will need with quides and pictures etc..
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