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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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Old 18 Mar 2009
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1VJ, 3AJ carbs on a 34L OK?

Hi All,

my carbs are really worn on the mechanism where the second carb gets opened. so they can't be synchronised.
can i just bolt on a carb off a later model or any other ideas

thanks
andy
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Old 18 Mar 2009
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Hej,

the later model carbs (2nd carb with rubber diaphragma) will not fit without extra parts and work on the frame.

You'll need the intake rubber between airbox and 2nd carb due to bigger intake diameter. Take it from 2KF-model.

To get the later carb models in, you'll have to get some kind of a dent in the frame. If there is any chance just have a look on a 2KF frame - Yamaha did a similar job to get space for top-cover of 2nd carb.

That's my knowledge about it - maybe there is a trick to fit later carbs in
without frame modificaton.

Good luck
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Old 19 Mar 2009
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Quote:
Originally Posted by bubbla View Post
Hej,

the later model carbs (2nd carb with rubber diaphragma) will not fit without extra parts and work on the frame.

You'll need the intake rubber between airbox and 2nd carb due to bigger intake diameter. Take it from 2KF-model.

To get the later carb models in, you'll have to get some kind of a dent in the frame. If there is any chance just have a look on a 2KF frame - Yamaha did a similar job to get space for top-cover of 2nd carb.

That's my knowledge about it - maybe there is a trick to fit later carbs in
without frame modificaton.

Good luck
blimey, in that case anyone got an old carb off a 34L or 55W or 43F? that they would like to offer up. anything considered

thanks
andy
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