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DRZ110 AirBox mods

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I've ordered an 85 main and a 40 pilot for my daughters 110 but I am not sure about how many and what size holes to drill in the airbox. Any Suggestions?

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I drilled mine out and tryed three different main and pilot jets and played with air fuel mix and it was much worse than stock. I had to buy a stock airbox from e-bay to fix this mistake.

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Get rid of the stock air box and get the Two Brothers kit.

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What jetting did you use with the two brothers kit? Have you tried the adjustale needle? I belive it was a two brothers needle. How does the filter hold up when its wey and muddy? :cry:

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Get rid of the stock air box and get the Two Brothers kit.

Wrong. If you ever hit mud, then you'll be pushing that bike back to camp.

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I drilled mine out and tryed three different main and pilot jets and played with air fuel mix and it was much worse than stock. I had to buy a stock airbox from e-bay to fix this mistake.

mototlawson is right on. that box is a tuned setup. look at the way the box has been partitioned. if you hack it up, you'll introduce turbulence into the airflow, richen the a/f ratio at the region of distortion, and get flat spots (bogging) somewhere in the early stage of midrange.

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I have yet to have trouble with this set up. My daughter races in everything from mud to dry sand. All I did was use an Outerwears prefilter cover on it. This is an all out race bike so the conditions are a little different than trail riding. We ride in the high desert after rain with lots of standing water. The only thing I noticed is sometimes after she runs through water, she needs to clutch and rev the engine to clear it.

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run the breither tubes for the carb up higher but not abve the carb to make it not studer in the puddles

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