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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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  #1  
Old 15 Apr 2002
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performance filters

does anyone out there have experience of K+N mesh filters or similar? i want to take out the whole airbox on my xt600e and replace the filters and exhaust for performance parts.can these bolt straight onto the carb mouths?

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Old 16 Apr 2002
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Search the HUBB for K&N - there was a fair bit of discussion on this recently.

Speaking generally for ALL bikes:

If you're planning on riding off-road AT ALL keep the stock airbox.

Bolting filters straight onto the carbs usually equals a power loss due to the loss of still-air volume. All modern engines have huge airfilter boxes for a reason. Exhaust mods are more likely to be an improvement, but even there you have to be careful - often they are just louder and/or lighter. Usually you have to tweak the carb settings to get an improvement with a "performance" exhaust, otherwise you can have a loss of power.

I'll leave it to the XT experts for specifics on which exhaust etc.

Good luck, and be careful

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Old 16 Apr 2002
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thanks grant, but i never ride off road,im building a supermotard and im getting rid of all the weight i can.i want some decent filters to go with a stage1 head and exhaust,enlarged bore and custom piston.55hp is my target,i rode one with a stage 3 kit but it was unrideable,near 60hp but it was either full on or off, no inbetween.the stage 1 with bored out motor should give some more torque low down.put together with a longer swingarm and lower gearing i should have a real slide fest!

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