Air Filters - Universal Thread

[Sandeep_K_Ram]

I re-iterate - its not worth the time and money

[saif71184]

Ok..so that means upjetting is essential after any filter installation....Thx for the info.

[Sandeep_K_Ram]

If you don't upjet, at least you need to re-tune the carb and make sure you are not running excessively lean...

[JiNS]

Putting the filter inside the airbox or cutting one side of the box is useless. It is just restricting the performance of the filter.

I always put the filter directly to the mouth of the carb. Remove the hose pipe, stick the filter directly.

P200 has a stock jet (main) of 110. I had a RC1060. I got the 115 main jet from the old Unicorn model and got the carb tuned many many many times before it was a somewhere near respectable and there was a small improvement in performance - perceptible improvement - not a placebo

But its a very small gain. That is why my argument is that, spending that much time and money is a waste - unless you just need the sound

Ideal setup? Hard to say. You will use a jet size bigger by 5# or so each time, retune, run for a while, check the plug, check throttle response, rev happiness, etc and then make a call ...trial and error. Lots of time reqd.

Hi Sandeep,

Where u did the re-jetting, and what the cost of Jet? (sorry i dont have any idea at all). I have to try that on my FZ.

cheers,
Jins

[Sandeep_K_Ram]

^ its not worth it man ...unless you just want that sound

Rejetting - is just trying out jets of different sizes.

Some people will bore out the existing jet to bigger size. Others will try to get a matching jet of bigger size from other bikes. If you know your way around the carb, you can do it yourself else I suggest you get hold of your trusted and knowledgeable mech.

[themadrussian]

i have a KnN on my bike and i say get it installed IF AND ONLY IF you want to throw away your bike after running 10k kms

[JiNS]

^ its not worth it man ...unless you just want that sound

Rejetting - is just trying out jets of different sizes.

Some people will bore out the existing jet to bigger size. Others will try to get a matching jet of bigger size from other bikes. If you know your way around the carb, you can do it yourself else I suggest you get hold of your trusted and knowledgeable mech.

Thanks sandeep .

My bkes performance is quite good in lower rev's. The problem is it is jerking after 7k rpm. I have tuned up carburetor several times...

If i try re-jetting wil this problem get solved?

[Sandeep_K_Ram]

I can only speculate. Suffice to say that, with the filter and proper jetting - carb tuning, most of the issues might be resolved


Oh I see I hit the ton again

[EL LOCO DIABLO]

Mileage has dropped to an all-time low, calculated the mileage today and it is somewhere around 29.2kms for every litre of petrol, well in a way i'm using this as my final decision in pulling the plug on my filter

[surajram]

Mileage has dropped to an all-time low, calculated the mileage today and it is somewhere around 29.2kms for every litre of petrol, well in a way i'm using this as my final decision in pulling the plug on my filter

And this was on the stock jets on a P200 right?

[winzeee]

Well i just took the airbox out,And fitted the K&N direct to the carb .Had a small ride,nd i felt like the bike is choking after 4k rmp and it jups back after 6k.Why is that ?.Im on stock jets, p150
Here is the pic


Cheers W

[Sandeep_K_Ram]

^ stock jetting. Either get carb retuned or re-jet.

@ EL Loco -

With stock jets, bigger filter you will be running lean = slightly better mileage . I am puzzled with your low mileage.

[EL LOCO DIABLO]

^^Yeah that's my amazement too, it is possible that i would have been compensating the lean mixture by keeping the revs higher than necessary......................or can it??

[Sandeep_K_Ram]

No. It doesn't work like that.

But yes, when people get a filter they want to rip and hear the sound so you are usually riding harder than usual. But on stock jets, 29 is pathetic.

[EL LOCO DIABLO]

Dunno maybe the carb is a bit off again, that is another thing after i had the filter installed, the carb goes awry pretty often and has to be adjusted, i mean what is the deal with that?