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FJR Motorcycle Forums
Technical & Mechanical Problems
Different take on air box modification
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<blockquote data-quote="SkooterG" data-source="post: 949791" data-attributes="member: 118"><p>Interesting theory, but I have my doubts. The end of the tube is not equidistant to the four intake tubes. At least not to my eye. The left two are further away than the right two. And the uneven filtration of the air filter confirms where the air is going - to the right side.</p><p></p><p>A trusted life-long Yamaha tech is under the opinion it is there for noise reduction - 'intake honk'.</p><p></p><p>In the end, who knows? I am sure the Yamaha engineers put it there for some reason. I am hesitant to make changes to modern engine designs as I am not one to presume to know more than the engineers who designed the motorcycle.</p><p></p><p>But, after 15 or so air filter changes and always seeing the uneven dirt accumulation, I just couldn't get off the, 'that just ain't right' thinking and decided to give some modding a try. One thing I definitely DID accomplish was even dirt accumulation on the air filter.</p></blockquote><p></p>
[QUOTE="SkooterG, post: 949791, member: 118"] Interesting theory, but I have my doubts. The end of the tube is not equidistant to the four intake tubes. At least not to my eye. The left two are further away than the right two. And the uneven filtration of the air filter confirms where the air is going - to the right side. A trusted life-long Yamaha tech is under the opinion it is there for noise reduction - 'intake honk'. In the end, who knows? I am sure the Yamaha engineers put it there for some reason. I am hesitant to make changes to modern engine designs as I am not one to presume to know more than the engineers who designed the motorcycle. But, after 15 or so air filter changes and always seeing the uneven dirt accumulation, I just couldn't get off the, 'that just ain't right' thinking and decided to give some modding a try. One thing I definitely DID accomplish was even dirt accumulation on the air filter. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Different take on air box modification
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