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Posted

Recently i purchased a K&N air filter, it basically stopped my bike taking in the air it required compared to the old one. However i disposed of the packaging as i assumed a new £50 air filter would not be a problem..


Now i need to return it, but what are my rights ? As the item does not work even though specified for my bike.

Posted

Whats your bike doing? What filter did you have on before? A kn will be higher flow than a standard. Call who you bought it from and if you still have proof of purchase you may be in luck

Posted

Kn filter struggled along and wouldnt rev properly when moving. Hiflo one thats in there (my old one) runs fine. So not sure what else could be causing it all i changed was the air filter problem was solved

Posted

It's not upside down is it? They only flow air through one way you know. :-)

Posted

Come on give me SOME credit :D


Gonna give them a call later today see what they're willing to do.

Posted

You say its not taking in the air it should be? Are you sure its not taking in too much air? Because if so, I've had the same problem with the same bike.

Does it have a non OEM (non original) exhaust on it too by any chance?


It's probably breathing a little too well. People usually buy K&N when modding a vehicle to get more air into the system. You should be able to swap an OEM filter for K&N without any issues if everything else is standard. The issues arise when you do it alongside modifications like a full exhaust, or even a slip on (which is what I had when I experienced the same issue)

Too much air in the mix makes it run lumpy under acceleration. I believe you'd need to take it down to a dyno and get them to re-jet it to get the mixture right if you want to keep the K&N and exhaust (if you do indeed have a non OEM exhaust on it)


Or DIY it - http://www.bikebandit.com/community/gui ... X_W7PlRHIU


The above is on the presumption that you have other mods on the bike, in which case you probably won't be able to send it back now its been opened, fitted and taken off again, as the purpose of the filter is to let the bike breath better, which it sounds like it's doing

Posted

Bike is pretty much standard, original exhaust and whatnot the previous air filter was a hi flo one hence why i swopped it. either way it refuses to work so its no use to me really, dont want to get the bike re-jetted for an air filter

Posted

you wont need to re jet just for a K&N


it should still run!


does it run with the stock filter back on?


and when you say it wont run whats it actually doing?

Posted
you wont need to re jet just for a K&N


it should still run!


does it run with the stock filter back on?


and when you say it wont run whats it actually doing?

 

Oh yea, I forgot to add to the end of my last post, "its probably best to wait for someone to reply that knows wha they are talking about before doing anything" haha


In which case, have you made sure no cables have been pinched when doing the work?


As for the original question - if you put the old one back in and it runs fine, even though you don't have the packaging, it shouldnt be too much of an issue to get your money back if its faulty


I'd ring 'em and see what they say, but as long as you can prove you've purchased it from a reciept/email etc, I don't imagine there would be an issue, especially from such a large company

Posted
you wont need to re jet just for a K&N


it should still run!


does it run with the stock filter back on?


and when you say it wont run whats it actually doing?

 

Stock filter is back on currently, rode it to work today with no issues what so ever.


When i had the K&N filter on i would hit about 5-6k rpm and the power would dip then jump on but like it was struggling.

Posted
maybe getting too much air which is causing the issues...
Are you sure its not taking in too much air?

 

So what you're saying is... the problem with the bike is it sucks too much?

http://vignette4.wikia.nocookie.net/le-miiverse-resource/images/f/fa/Deal_With_It..gif/revision/latest?cb=20141015042646

Posted
maybe getting too much air which is causing the issues...
Are you sure its not taking in too much air?

 

So what you're saying is... the problem with the bike is it sucks too much?

http://vignette4.wikia.nocookie.net/le-miiverse-resource/images/f/fa/Deal_With_It..gif/revision/latest?cb=20141015042646

 

:up: You can't talk :D

Posted

Damn and blast!


Mr Glorian, you should have asked whether you should go with an aftermarket or OEM grade air filter. :lol:


I've known for zonks this would likely happen as an old member on this forum had the same issue with the same bike, and I've known of others start coughing and acting up when a K&N was fitted. All to 600cc carbed bandits.


Your rights are you can return it, but in your own packaging, as you could argue the packaging was ruined when you opened it to get the product. Send it back, preferably with a receipt or order number of some kind for them to identify it, and give a written reason. Should see you right :thumb:


I find it weird this is still an issue with 600cc bandits and that K&N didn't rectify it. That said, things like air pressure, density and so on all play a part so it could work fine for some in other parts of the world.

Posted
you wont need to re jet just for a K&N


it should still run!


does it run with the stock filter back on?


and when you say it wont run whats it actually doing?

 

Stock filter is back on currently, rode it to work today with no issues what so ever.


When i had the K&N filter on i would hit about 5-6k rpm and the power would dip then jump on but like it was struggling.

 

sounds like the needles need lifting slightly


a good test is when it gets to that point is to stick a bit of choke on if it starts to run fine then yes your pulling too much air


if your happy with the stock filter then stick to it

Posted
maybe getting too much air which is causing the issues...
Are you sure its not taking in too much air?

 

So what you're saying is... the problem with the bike is it sucks too much?

http://vignette4.wikia.nocookie.net/le-miiverse-resource/images/f/fa/Deal_With_It..gif/revision/latest?cb=20141015042646

I take it you are available for weddings and functions ? :cheers:

Posted

Trust me... You don't want him to be..


http://i.imgur.com/wU4T9ue.gif' alt='IMGUR>'>

Posted

The guys with the air too high are on the money. More air equals more fuel - always. You just need to rebalance the mixture. Tweek up the fuel a quarter turn to start with and work your way back. If unsure mark the original position before you start a a get out of jail card. Keep going back until the symptoms reappear and then knock forward slightly. Here you will have as near as perfect mix as you can get without equipment.


Normal caveats apply - if you really don't know or feel competent, don't play. There may be people on here that can do it for you. That said it isn't hard and you don't learn anything without trying something new.


If you want a slightly inaccurate but easier way of proving he air flooding, then block half of the k&n to restrict flow and confirm the symptoms clear.

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