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Gas gas TXT 250 shifting gear box problem


gasaxe
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New member. I wish I had found this form years ago.

 

I have a 2012 TXT 250 I ride near every day.

Went to town for milk and bread and when I tried to gear down to 3rd it would not click in.

I rode home in forth and drained the oil. It was clean.

Topped up the gear oil and went for a short ride.

3rd 2nd 1st now work but no 4th or 5th.

It's now parked. I'm in Central America. Parts are limited.

My son is going to California in a week and thought maybe he can get what I need to fix my gym on wheels.

This bike keeps this old man healthy and fit.

Any advice much appreciated.

I'm thinking this is the problem in the screenshot attached

Screenshot_20251026-144159.png

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Shaft Shaft MT280238043  https://trialssuperstore.com/products/gasgas-pro-gear-selector-shaft

But the shift drum may be damaged as well. 

Shift Drum MT280238031  https://trialssuperstore.com/products/gasgas-gear-selector-drum

I would disassemble and inspect prior to buying any parts. 

Trials Superstore is only one example vendor.  KTM dealers can also sell those parts.

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