Question about 2002 Yamaha DT 125 R

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Cogs in a gear box

Hi i have got a yamaha dt 125 and the piston ring and head gasket need replacing and i have been told the reason it blows up is because the cogs in the gear box need moving is that right

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Hi karen, that is right, i do have a DT 125 myself and same thing has to be done.

Usually this is balance the engine so that the moving parts will move to a limited place. this is also to avoid further block damage when the piston is moving up and down.

Posted on Jan 02, 2009

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Posted on Jan 02, 2017

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