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New K&N air filter Modquad

978 Views 5 Replies 4 Participants Last post by  TDIRTY
Hi fellow riders,

I had posted previously that I installed a new K&N Modquad air filter. At first it seemed it wasn't working right and I thought I may need to re jet. Today I took it out for a ride and it ran great 1-5 gear. So then I took the air box lid off and loved the sound it makes. So I left it off because it was even more powerful and loud. I went riding for 2 hours and the only concern i had was a noise the engine seemed to make while riding fast. It makes a noise like cracking inside the engine like as if the metal is too hot? Is this because I'm running with the air box lid off? It did do it a little too though with it on. Please let me know what this could be. And also should I still re jet? Thanks.
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Heck yeah rejet when you took the lid off you leaned it out even more. a lean engine runs like a scalded dog but also gets really hot really fast. rejet
1 - 1 of 6 Posts
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