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What octane gas are these for? I run 93 octane reguarly. I might be a little rich... Would it be ok to lean it up some?



 

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I think it would be a matter of if you need to change plug #'s. Maybe I'm wrong though. Either way it looks like your running rich. Was that after running it around for a bit? Was it a new plug to start with after your build? Higher octane fuel burns slower so if anything it would be running a little cooler cyl temps if I'm not mistaken. Get ahold of Eric if thats who's stuff your using. He will set you straight I'm sure.
 

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cooler temps and less hp with stock compression ;)
 

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High octane isn't required until you raise compression. The plug does look a bit rich though, Are you running the recommended programmer settings?
 

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Those dobeck programmers always run a little rich, you could get a hotter plug that may help
 

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There is a sticker on my gas tank saying to run premium from factory.
What year do you have, I've had a couple 08's and never seen the sticker. I'm not sure why they would suggest it though, 10:1 with an aluminum head wouldn't raise flags to me
 

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I have the same sticker as well
 

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08, I bought new so I know its factory. It is above the gas cap if you are sitting on it. Between the cap and bars.
 

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I also have that same sticker on my 08 that I bought new
 

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But you are running way rich. I don't know what part is doing it though. Over loading at idle, or wot. But somewhere your rich
 

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:xx:
I have the same sticker as well
they all come with 93 sticker after about 8 months later from being new , the pressure washer an me spilling gas on it f3cked it up and it come loose on my 700XX
 

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My sticker is still there after 2 years of use. I my be wrong but I use 93 octane in all my quads and lawn mower, always have.
 

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Personally i run 50/50 aviation fuel and 93 pump gas with a 8oz marvels mystery oil per gal when im going to race or run WOT because of better throttle reponse... just trail riding is straight e-free 93 pump gas.
 
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