K&N Air Filter

[rodrigojds]

I bought a K&N air filter last week and I've noticed a few things.

The very first thing I noticed was that the idle RPM's are lower now than before. Previously I would start it up and the RPM's would go to around 1.25 K and now I start it up and it goes to less than 1K. But after a while it goes to 1.25 K so I'm guessing it's not an issue.

Another (very) positive thing is that the RPM's easily go to + 12K and before it would rarely pass 8K.
Also the sound the bike makes when I accelerate is louder!


Even though it was expensive I'm happy that I bought it. 

[darrsi]

I bought a K&N air filter last week and I've noticed a few things.

The very first thing I noticed was that the idle RPM's are lower now than before. Previously I would start it up and the RPM's would go to around 1.25 K and now I start it up and it goes to less than 1K. But after a while it goes to 1.25 K so I'm guessing it's not an issue.

Another (very) positive thing is that the RPM's easily go to + 12K and before it would rarely pass 8K.
Also the sound the bike makes when I accelerate is louder!


Even though it was expensive I'm happy that I bought it.

It'll be the last one you buy for the bike so it wasn't really expensive!
And it's worth it just for the general better feeling of the bike anyway.

[clayt74]

With standard air filter mine ticks over between 1.6-1.8k which I thought was the norm? Rev wise easily over 12k all the time!! Still wanna fit a k&n tho

[BBROWN1664]

The FZS runs slightly rich from the factory. No need to change the carb jets when adding either a K&N or a different end can. Just reset the TPS and balance the carbs properly to fully enjoy the (slight) increase in performance. The most apparent difference I found was in the mid-range where it just smoothed everything out nicely.

[clayt74]

I've got a set of carb  gauges but haven't used them yet, is setting the tps just using the rpm  meter to show  it's in range?

[positron]

I have sandybikespares stainless steel pipes with standard exhaust, and I had some issues with bike not revving past 7k or so (there's a thread here about it), and ended up replacing what appeared to be an ancient air filter with a K&N. No other changes. Bike now has more power than I ever wanted. It pulls away like a train and by around 10k the power is still coming on strong that discs in my dodgy lower back starts to protest from the sheer force of the meat-sack that I am getting pushed harder and harder against the seat.

[darrsi]

With standard air filter mine ticks over between 1.6-1.8k which I thought was the norm? Rev wise easily over 12k all the time!! Still wanna fit a k&n tho

Doesn't really need to be that high, around 1250rpm is average.

TPS should be set on the 5000rpm mark, plenty of info on here mate.

[MC680x0]

I've got a set of carb  gauges but haven't used them yet, is setting the tps just using the rpm  meter to show  it's in range?

you set the tps so it reads centre (think its 3k but I could be wrong - there is a shop manual in the downloads section on this forum, tells you in there about setting TPS); the rpm needle moves up/below 3k [whatever] to tell you whether to rotate the TPS clockwise or anticlockwise.

[bandit]

Yes clayt74 5000rpm on meter is correct.

[darrsi]

[quote author=clayt74 link=topic=14460.msg168135#msg168135 date=1411745069]
I've got a set of carb  gauges but haven't used them yet, is setting the tps just using the rpm  meter to show  it's in range?

you set the tps so it reads centre (think its 3k but I could be wrong - there is a shop manual in the downloads section on this forum, tells you in there about setting TPS); the rpm needle moves up/below 3k [whatever] to tell you whether to rotate the TPS clockwise or anticlockwise.
[/quote]


Seriously, why would you bother writing that if you don't actually know what you're talking about?  :rolleyes

[darrsi]

Instructions on TPS check on here:


http://foc-u.co.uk/index.php/topic,9111....l#msg91005