First time I took my 94 banshee to the dunes I had a stock filter. My plugs were fouled from the sand getting through. Cleaned it up, rinsed out the bike and put the pro design foam kit. I tripled check the connection, siliconed the plate to the box, ready to go. Next trip I didn’t get as much but enough to make me cry. Did I waste my money on the foam?

 

I keep reading on this forum about K&N's letting sand in, and foam being better.
I don't understand or agree. I have been running K&N's on every kind of vehicle I ever owned that they made on for since the late 70's to early 80's from the Florida loamy sand and dust to here in the North Georgia Orange dust and crush & run gravel roads with NOTHING passing through that the naked eye can see.
As a matter of fact I was so shocked wheen I heard my first negative comments about the I called K&N and told them about it. All they could reason about it was improper care.
Foam is the most restrictive element you can get. If you get a hi-flow foam unit it must be lacking somthing in the filtration qualities.

Go to http://www.knfilters.com/ and read their story.

Good Luck.

 

I think a good Oiled K&N with outwear, is the way to go. I have used it in the dunes with no air box lid and didn't have a problem. I have changed a main jet in the carb. after dirt riding and didn't have a problem either.

 

TheRock:
Looks like you've had quite a bit of experience with the K&N's, so I was hoping I could get your opinion here. I had a Chev 350, bored out, Edelbrock kit-(highrise manifold, cam, carb, etc.), which was putting out a little over 350 hp. I put on one of the 6" K&N filters, for increased air flow, and because of the K&N name. It worked great for a while, but after about one year, I found while doing some other engine work, that when I put the filter on, my engine rpm's dropped substantially. At the time, idling at around 800 rpm's with the filter on, when I took the filter off, engine jumped to nearly 1300 rpm's. I put on a normal paper filter, and it maintained the 1300 rpm's. After a REALLY THOROUGH cleaning and oiling, I put the K&N back on, hoping it was just dirty, but I got the same results, it choked the engine back down to 800 rpm's. I talked to a couple mechanics, and they said to throw it away, just use a good normal filter, that they were better anyway, so I did, and never had any trouble since. Is it possible I got a bad K&N? The cleaning instructions are very simple, so I really don't think that was the problem, but I couldn't figure out why it was so restrictive. Any thoughts on this subject?

Thanks for the info.

Mike

 

Call K&N 800-858-3333 and ask them and PLEASE get back with me on what they
said. I myself do not understand it.

Get back with me with their answer.

AC