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134 Posts
Discussion Starter #1
Hey guys, about a month ago I installed a new DK air cleaner and Do it yourself breather kit.
Well what a big difference.
For the first time I hit 100!!!!
Too fast....lol
But the power feels so much better.
My mpg went from 48 to 39.
Would a carb tune up help the mpg?
Thanks for reading, here's a couple pics of the ac.
ImageUploadedByMO Free1413427321.479785.jpg ImageUploadedByMO Free1413427347.694976.jpg ImageUploadedByMO Free1413427378.576950.jpg


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Wayward Son
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23,314 Posts
It won't make that much difference, keep the throttle open.
:think Going fast equals more fuel. Using more fuel equals less MPG`s.

That is a drastic drop for only swapping an A\C.
Sounds like his riding habit has changed to take advantage of the seat of the pants gain.
 

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SoundMan
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576 Posts
It won't make much of a difference, except you'll feel better knowing your bike is tuned better. I changed my exhaust and air kit and then added a fuel management module and I lost about 6 mpg. The fuel management sets the bike to run a little rich so that's why I lost mpg. To me it's worth the added power and I like knowing my engine is running a little cooler.
 

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Wayward Son
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Think that is the first time I ever saw the crankcase vent mounted facing up like that.
 

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Wayward Son
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:think...you may be on to something Fred, where will the oil that leaks out go?
Just back into the crankcase. Do`t think it will hurt anything.
It`s only an oil mist that is produced. Only drips when enough collects to form drops and overcome oil`s natural cling factor.

Was`t meant to start any crap (for once).
Just honestly have never seen one mounted that way.
 

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Discussion Starter #16
Just back into the crankcase. Do`t think it will hurt anything.

It`s only an oil mist that is produced. Only drips when enough collects to form drops and overcome oil`s natural cling factor.



Was`t meant to start any crap (for once).

Just honestly have never seen one mounted that way.

So far, there's no leakage or misting.
It's working pretty good.


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Wayward Son
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So far, there's no leakage or misting.
It's working pretty good.


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There is always misting. It just happens internally. Factory set-up routes it back through the carb to be burned in off in the cylinders.

You should not see any dripping with your set-up. As it is all running back into the crank case.
Not everyone with non-OEM breather\crank case venting will get drops either.
 

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Señor Member
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I bet you get half that mpg back when you get used to it and stop raping it. :thumb
 
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