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Discussion Starter #1
I would like to do it .... and I'm sure others would as well....

Drilling is the easy part - what about the idle mixture screws ?????

Thanks...
JMS

(beer) to Fog
 

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A bit of a Primer on the air box modifacation. It's not about air flow but presure adjustment (negative pressure). The running engine draws air form the airbox lowering the internal pressure from the throttle to the intake air horn. This lower pressure is what causes fuel to rise up through the jets. At low speed it almost nonexistant and causes a very lean mixture. This is why you have pilot jets. Converslly at High speed and full throttle operation this pressure differential is great causing too much fuel to be forced into the airstream and causing rich running and lower power production than Ideal.
The hole lower this pressure differential and lessens the flow of fuel at full throttle. This leaning out is why you need to re adjust the pilot screws after altering the airbox pressure (Vacuum) Also this is why only 1 1" hole is required any moe and you have screwd up the balance.


Resetting the pilot screws is a tuneing thing. Simply agjust then to achieve the best throttle response from Idle to about 7000 RPM. Sudden full throttle at Idle and adjust by 1/4 turn at a time to get the smoothes acceleration.
 

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Discussion Starter #4
Awesome !!!!!!

Now what about the pilot screws - how do we do this ?? if I have a bone stock bike and I drill the 1 inch hole - what do I have to do to the pilot screws ???

Thanks...
 

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How much of a problem will the aribox mod WITHOUT the pilot adjustment be? I have the time to do the airbox mod, but not the pilot screws. I just want to make sure that I can do one part now and the second part later....


Thansk!
 

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kevlarian said:
How much of a problem will the aribox mod WITHOUT the pilot adjustment be? I have the time to do the airbox mod, but not the pilot screws. I just want to make sure that I can do one part now and the second part later....


Thansk!
You can do it but wait till you can do the Pilots too. Drilling the Airbox cover take 5 min and can be done later. Without the pilot screw adjustment you might get a more sever stumble somewhere.

FOG
 

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Sorry if firing up a 2-month "retired" isn't proper...

I got to messing w/ my bike during today's nice thaw-weather. Took off the seat & side panels & started looking at the airbox sidecovers, removing the right side cover. I just reread the instructions below & am now wondering if anyone has modified the left side using extra rubber tubes from the right side? They look like they could fit on either side.

It seems like it'd allow better flow towards the air cleaner, plus limit the noise.
So has anyone tried it?
 

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i bought an 06 about a month and a half ago. it runs very well it seems. im only getting about 42 mpg. i got 45 on a highway trip cruising at near 80. by nick d's spreadsheet, my speedo is dead on. (i dont mind getting 40 but i want my bike the be the best it can be - same with performance)

i guess my point is, do i really need the airbox mod?
i bought a new bike so that i wouldnt have to do much work to it (am doing some customization). i had a car that i could never get tuned out right with the carb (carb probably wasnt the problem) and i spent tons of time under the hood of it. i really dont want to spend much time working on carbs.

should i buy an extra airbox and see what happens?
 

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If your happy, be happy. don't do anything.

FOG
 

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not to be a pain, but would i be happier?
what does it actually do to the feel of the bike? a little faster?

since my gas mileage is already low, do you think it would drop even more?
 
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sojon said:
im only getting about 42 mpg. i got 45 on a highway trip cruising at near 80.
I would think you should be getting higher mileage than that...how many miles is on your 06?
 

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little over 1k

had it serviced and valves checked at 700 miles
i dont constantly "floor it" but i dont baby the bike either...

it runs strong, the bike had no problem testing my speedo at 110
speedo should read 111 or something like that at 10krpm in 5th (and it did)

i figured it might be running rich but i dunno
 
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I'm not the most mechanically inclined on the board, so I'll leave suggestions to others - but it could be rich?

I don't baby my bike either, she gets a lot of spirited acceleration - and I usually get at least 50 mpg.
 

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The "air horn" will fit on the left side of the bike. I am unable to report on any performance change. It does look a little nicer. I had to adjust the hole to fit the grommet on the tube. Since my original hole was a little low the bell on the horn is slightly deformed by the frame. Measure twice and cut once.... well I should've.
 

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Hey Shorty, Look up at the top of this thread. The pictures show un plugging the pilot screws.

FOG
 

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sojon => If it ain't broke, don't fix it ;)
 

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FOG said:
Hey Shorty, Look up at the top of this thread. The pictures show un plugging the pilot screws.

FOG
Ya that is the hardest part to do an the best advise. but not he hold drilling the hole thing. it is worth less.


FROG's eat FLYS that is funny. :D
 

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that was how my bike was... just the screw... no "mystical" seal that had to be drilled out :D i soon learned it was way too much of a paint to take the tank off every time i needed to adjust them... just go buy a small screw driver and work it while the carbs are in place! EETS A MEERICLE!!!
 
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