Adding a K&n filter

[Kennypa4]

I have Installed a K & N Filter to my bandit 600s not really for the reason to gain power as such i just wanted a low maintainance solution instead of buying a standard filter .
Now when i did this the the bike ended up running like a coo . everytime i put a bit of throttle in the engine died a wee bit then took of like stink . So i am running lean Now i was told i would have to re- jet the bike to fix this but i have also been told I can adjust the mix myself and balance the carbs . Anyone any more the wiser that can help me . I have to gear to adjust and balance and have done it in the past .
thanks for any replies in advance
Kenny
____________________
Kenny
RBLS Riders
Scottishbikers Forum

[Robert2014]

Kenny Try the Mix screw first as it sound's as if it gettin to much air now and Balancein them wont harm it as well If this dont work then yes u will need to rejet the carbs mate
____________________
If you require a mechanic then I am your man. Bike collection and recovery service available. Don't let a monkey work on your bike, call the family run business on 07778 873 184 01505684994 https://www.rdbikes.co.uk info@rdbikes.co.uk

[Bru]

The mixture screw is only good for idle speed, and not much more.

Is the K&N filter a direct replacement for the standard one, or have you removed the airbox entirely and gone for pods? The simple replacement of filter within the standard airbox should not have altered the running conditions of your engine that much.

[MaybeGuy]

[chris-red]

Did you put the air box rubbers around the carbs/throttle bodies properly? I reckon you have an air leak.
____________________
Well, you know what they say. If you want to save the world, you have to push a few old ladies down the stairs.
Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
WANTED:- Fujinon (Fuji) M42 (Screw on) lenses, let me know if you have anything.

[Bru]

lol?

[stinkwheel]

Dynojet make the jetting kits that are designed to go with K&N filters.

They make a big fuss on the instructions of pointing out that neither the dynojet kit, nor the filter makes any difference to the slow running circuit on the bike. If it is having trouble at idle, it is due to something other than the kit.

As such, adjusting the mixture screw will make bugger all difference.

Raising or lowering the throttle needles may well make a difference. Could be running lean, or might be bogging because it's running rich.

If the one for my VFR is anthing to go by, the taper on a dynojet throttle needle is very different to the standard one. The jet kit also contains stronger springs for above the carb diaphragms which will make the throttle valve open more slowly.

It might be that the increased airflow from the filter is banging the throttle fully open too quickly against the standard spring, making it gulp fuel and bog slightly before setting off like a scalded cat (it's the volume of air moving through a CV carb that opens the throttle valve, the throttle control itself regulates the size of opening that air can pass in through).
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[steven_191]

The k&n filters are more open pore than standard and are supposed to be oiled every 10k miles or so to catch dirt and grit etc. Effectively making it Higher maintenence.
So anyway the last post about it allowing too much air through is worth looking into or something hasnt been put back on right. See if there are kit available for changing to a k&n. If so that's probably what u need

[Ichy]

[chris-red]

[smegballs]

[Bru]

@Smegballs: quite correct. I was too quick in replying, and did not make my point accurately, but meant just that. I guess I was not as helpful as I intended to be.

[Ichy]

[Kennypa4]