YZ250F Transmission Problems

2022 Yamaha YZ250F was jumping out of third gear and this is what we found.
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[@NickRomanoMX]

Got a 2018 yz450f. Gears were slipping then 4th gear went and shattered while riding. Need to redo the transmission now.

[@MrZegiknie]

I have had the exact same problem. Mine is 2020. Our local mechanic/dealership which has been around for a long time in MX world, told me this is a very common problem besides other gearbox problems with the YZF. I even found out my bike has had the same problem, just 15 hours ago. Could be due bad repaires, but the man told me has seen this problem way to often on the YZF’s. He even could tell me the exact problem before he even saw or heard the bike…

[@adamm397]

2017 Yz250f with 110 hours Just blew 5th gear, shifted without the clutch.

[@Ashroyer86]

Do they make upgraded trans parts for yz250s in the 90s?

[@ezechielroy859]

Hey I was just wondering if the issue was resolved after the repair? Having the same issue with mine for 5th

[@Cyclepedia]

After replacing the damaged parts everything was good to go. Since making this video I think this transmission design may be easier to damage then I realized though.

[@ezechielroy859]

@@Cyclepedia thanks for the reply

[@macpac3803]

Howmuch in parts to fix this?

[@Cyclepedia]

Not sure exactly but around 500

[@K_Nasty]

You can buy an entire zonshen cn250 for 500 and not have to take all that apart