does anyone have experiences with the K&N filter for the 750 paso (weber) ? is it worth installing it?

greets, flo.

well let`s say you won`t have any disadvantages.
If you use a non modified engine with the original exhaust the main pro is that you can wash the filter and don`t have to change it. Intake sound changes a bit. That`s basically it.

If you have some upgrades on your bike I would recommend one.

http://forums.ducatipaso.org/viewtopic.php?name= ... ght=du0900

I read in other forums that some no-name foam sport filters can slowely fall apart, so some pieces can get in the carb, but that`s no issue with known filter brands.

G.

If you have an after-market exhaust, you can get a noticeable increase in power, with a K&N filter and re-jetting of the Weber carb.

My experience was with a low-restriction exhaust (Rennsport exhaust with the packing removed from the baffles) and a K&N installed in the stock airbox. I re-jetted the Weber with 0.060 idle jets, 0.175 main jets, 0.160 air corrector jets, and replaced the stock F-36 emulsion tubes with F-25s (with two of the top four holes sealed with epoxy).

The bike had much better power all across the entire range, with only a small amount of the Weber "hesitation" at partial throttle, 4500 to 5000 rpm.

Without the K&N, the top end was not as strong, and the larger main jets could not be used.

With the stock exhaust and the K&N filter, the power increase is not as noticeable, but you should still re-jet the Weber for improved operation - I use 0.060 idle jets, 0.165 main jets, 0.160 air correctors and the F-25 emulsion tubes with the stock exhaust.

thanks for the advices! I do have aftermarket exhausts and I only know the k&n round filter with the crome plate on the top, which I guess can only be mounted with the airbox taken out. as for the idle jets I actually don't know much about carb tuning, the weber on my paso is standard configuration. but it interests me, do you have any technical literature sources about tuning the weber?

You`ll find some info about the Weber carb in the FAQs (first link on top in the forum).
If you want to fiddle with the carb yourself I can recommend the SUDCO Mikuni tuning manual. Ok, it`s no Weber manual but it nicely describes step by step how you determin correct jet sizes describing interdependecies a.s.o.
I have one, when I`ll have some time I`ll try to scan the interesting parts and upload it.

http://www.sudco.com/tool.html#002-999

G.

PS: if you plan to keep the Weber I personally would recommend to keep the airbox and use a K&N flat filter instead of K&N racefilter mounted directly on the carb. The partnumbers of the flat/square K&N filter can be found if you check the link I had posted above.

I recommend the Weber Master Spare Parts And Tech Guide (also referred to as the Weber Tuning Manual) available from this web site:

This book has theory of operation, tuning information, and a full list of part numbers for various types of Weber carburetors including the DCNF.