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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 29 Mar 2009
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Home made air filter

I stipped my old filter and have fitted some fine netting/mesh to one face and re fitted the spark arrestor metal mesh in the hope my motor might be able to breath a bit more.

Am I wasting my time? It has a Laser pro pipe at the mo and seems to run ok.

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Old 29 Mar 2009
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Airfilters are supposed to be wet with airfilter oil very slightly so that dirt dust and sand is caught in it preventing it entering the engine.


I ran my Africa with a cut down airfilter , it ran fine,but an acquaintance ran his ZX6R with a mesh filter (no paper and no oil) he got sand and dust in his engine , glass formed in one of his cylinders , some dust cut a tiny scratch into the side wall of another cylinder which then burnt out and made it burn an insane amount of oil.

So bad things can happen , I'd probably jet it to be a touch richer TBH in that with new end can and no filter it will run a bit leaner, too lean it burns a hole in your pistons , too rich just wastes petrol and at idle washes the oil off the bores (and shortens engine life necessitating more regular rebuilds).
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