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  #1  
Old 09-26-2011, 10:47 PM
dktremblay dktremblay is offline
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Join Date: Aug 2011
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Default Grizzly 700 with bad mid-range!

I just installed a swamp series slip on, K&N air filter and HMF optimizer (Track kit) on my 2009 Grizzly 700. Bottom end is great but around half throttle it falls flat and starts to sputter. Top end seems a little worse than stock. The optimizer settings I started with are 3/3/4. The HMF site gives two different optimizer settings depending on which web page your on. 3/3/4 or 1.5/1.5/2.5 Which one is a better starting point? I've also tried adjusting the optimizer settings up and down with no luck. Would really appreciate any advice, thanks!
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  #2  
Old 09-27-2011, 08:31 AM
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Mike/HMF Mike/HMF is offline
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3 / 3 / 4 will work better with a free flowing air box setup. For a closed lid setup, start with 1.5 / 1.5 / 2.5
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Old 09-28-2011, 10:48 PM
dktremblay dktremblay is offline
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Starting out with the rich settings must have fouled the plug. Once I changed it the leaner settings work good. Thanks Mike!
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