CBF1000

CBF1000 => CBF1000 - General Discussion => Topic started by: ToonCBF on 21 November, 2019, 02:25:11 PM

Title: Best replacement Air Filter
Post by: ToonCBF on 21 November, 2019, 02:25:11 PM
Looking to put a K&N filter in my 2010 Biffer, anyone got any experience of them? Are they worth the extra money?

Had one on my Triumph and it made a bit of difference, just wondering if it will do the same for the Biffer, or are there any alternatives.....

Many thanks

 :300: :300: :300: :300: :300: :300:
Title: Re: Best replacement Air Filter
Post by: NJD on 21 November, 2019, 03:31:18 PM
Hi-Flo has always been my go to brand, and with the air filter on the CBF being as easy as removing the side cover and three screws the need to replace it perhaps more than a K&N really means nothing.
Title: Re: Best replacement Air Filter
Post by: Art on 22 November, 2019, 03:04:15 AM
+1 for the Hiflo (HFA1927)

Not a fan of K&N's or any of the other re-usable air filters on the market and I can do without the time, effort and expense in cleaning them. Had one in my Triumph and the camshafts on that were destroyed by some gritty contamination of the engine oil. Whether that was down to the K&N or just coincidental I don't know. What I do know is these re-usable filters are less restrictive and therefore don't filter out as much as a regular air filter such as the Hiflo will do.
Title: Re: Best replacement Air Filter
Post by: ToonCBF on 22 November, 2019, 10:52:48 AM
Thanks, I have ordered a HiFlo and will enjoy fitting it!!
Title: Re: Best replacement Air Filter
Post by: Art on 22 November, 2019, 02:50:04 PM
I think cost is an important factor too

Hiflo (HFA1927) disposal air filter at c15.00 each every 20,000 miles.
K&N (HA1009 & 99-5050BK) re-usable air filter & K&N recharger (cleaning) kit c75.00

That's a mega 100,000 mile service plan!


Title: Re: Best replacement Air Filter
Post by: Moose1 on 22 November, 2019, 09:05:42 PM
Just completed service on bike last night.

Put a k and n filter in. 53 euro from Sportsbikeshop at the moment.

Compared to 20 for hiflo. Not a massive jump as want to keep for good few years 👍

Title: Re: Best replacement Air Filter
Post by: Art on 22 November, 2019, 11:09:00 PM
Don't forget you have to get down and get dirty cleaning, drying off and re-oiling it. Note too if it runs dry of oil it's not doing what it says on the box not that, in my experience, K&N's do what it says on the box ;-)
Title: Re: Best replacement Air Filter
Post by: kleopapas on 06 December, 2019, 01:49:29 PM
Hello Toon,

I put in a K&N filter when I got my bike nearly ten years ago;

Since then I have ridden nearly 70,000 miles, up hill and down dale, all over France, Spain, Portugal, Italy, Switzerland, Germany and Austria - plus commuting every day.

I've never bothered cleaning it and neither have I detected even the slightest change in performance either way.

I have read many claims here and elsewhere about what a difference changing the stock air filter makes but personally, I have seen no difference other than saving money on replacing air filters!

All I can tell you is that I have had no issues.

Thanks for reminding me, I'll take a look at it this weekend!

 :028: Kleo
Title: Re: Best replacement Air Filter
Post by: iNCORRIGIBLE on 06 December, 2019, 07:00:11 PM
At 72.75 years young I sometimes have the benefit of overpowering wisdom. This usually manifests itself in the form of a question. In this air filter issue the question would be as follows;

Would I prefer an air filter made  & fitted by the designers & manufacturers  of my machine which is changed for new at a frequency specified by them or an item made by some "minor"(compared to the Honda Motor Co.)  organisation at around three times the price & endure some hit & miss cleaning routine which is alleged to maintain its efficiency?
Time for my evening tipple I think. Goodnight all.Ed. :025:
Title: Re: Best replacement Air Filter
Post by: iNCORRIGIBLE on 06 December, 2019, 07:04:47 PM
Interesting  line from Kleos Air Filter post......I've never bothered cleaning it. :087: Ed.
Title: Re: Best replacement Air Filter
Post by: Art on 06 December, 2019, 11:47:16 PM
If a re-usable air filter is not being regularly cleaned and re-oiled it may as well be done away with all together. The technology behind these re-usable air filters is an old but simple idea. The filter medium is less restrictive which would normally filter out fewer particles except that the filter medium is coated in oil. The intake air is bounced across the oiled surface and airborne particles become lodged in the oily film. The main considerations when fitting a re-usable air filter as I see them are:

1) Re-usable filters require inspecting, cleaning and re-oiling often because if they dry out and cease to filter as designed and all those particles caught up in the oily film dry out too, breaking away and entering the fuelling system and engine.

2) The cleaning process needs to be thorough or else the re-oiling will simple soak up any particles left behind and block the filter. When re-oiling too much oil will block the filter, too little oil will not leave sufficient oily film to trap particles.

3) Re-usable filters may come into there own, but I'm not entirely convinced, when a less restrictive exhaust system has been fitted which has caused a decrease in inlet manifold pressure. A re-usable air filter that is less restrictive may correct that. The reason I'm not convinced is because most air filter housings contain baffles to maintain manifold pressure.
Title: Re: Best replacement Air Filter
Post by: iNCORRIGIBLE on 07 December, 2019, 08:59:36 AM
Top common sense there Art! Ed.