PEK Pure Boost carbs...

...are amazing! I put one on my '04 YZ450f, and there is nothing closer to fuel injection. I can't compliment it enough. Starts like a 2-stroke, even when hot or 'crashed'. Starts first, second or third kick, no need for the hot start either. Give it a twist of throttle, kick, and take off. No bog, no hesitation, nothing but instant response.

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