Hey all. Does anybody out there know of an alternative to the stock airbox on an e-ton 90cc quad? I beleive it's a 2000. The stock airbox is crap and the mounting tabs broke off almost immediately after my kids started riding it. I've currently got it wire-tied on with lots of silicone around where the hose meets the box to help hold it in place. I guess I'm wondering if there might be any kind of adaptor out there to put on it to run a standard foam type UNI filter. Thanks in advance for any advice!
Jeff

 

Don't know about Uni but K&N has universals. Just measure the diameter and match it up with the part# at their website.

Don't forget to rejet.

 

Most people run a uni-filter or K&N with larger carbs. They might make one that fits a stock carb, but I'm not sure. I would try checking with WRH or Hetricks or try one of the larger, have everything places like Dennis Kirk.

 

Match the flange with the measurement from your carb. Probably go with one about 3" long/3" diameter on the stock carb. Worked like a charm on mine.

K&N Part #'s


But a 20mm Keihin would be easier to find jets for and easier to get the jetting right. You might get stuck drilling out the main on the stocker.

 

What about the filter having clearance issues when you have the wheels turned all the way to the left? I think I'm rubbing the stock air filter box right now since it's not mounted correctly and sticks out a little bit.
Jeff

 

Lot of people use aftermarket filters. All I can say is rubbing is not an issue on mine.

 

Uni makes a bunch of universal Pod type filters. similar in shape to the K&N but all foam with a rubber flange.

 

I'm looking into K&N for my Sunl 70 & 90. It's a 35mm, and I've found the right model. Is re-jetting really necessary?

 

Not if you don't mind a hole in your piston.

 

My sons quad has a 28mm carb, we have two uni-filters, one is 5" the other 6" , neither one has a rubbing issue with the tires. We also have +3 a-arms though, so you might should check the clearance on yours once you find out if there is a filter that will fit the stock carb. I would also like to recomend a Uni-filter over the K&N if you ride in alot of sand or dust.