Re: Smokey Paul or anyone with knowledge of filters fitted

Posted by sidecarranger on Dec 06, 2012; 6:04pm
URL: http://silk-motorcycles.221.s1.nabble.com/Smokey-Paul-or-anyone-with-knowledge-of-filters-fitted-tp5000731p5000739.html

Hello,
i have the same symptoms on my MK II; and i have also a K&N cone style filter fitted.
I have an Ossa Yankee 500 SS where i experienced the following:
originally it came (like the Silk) with a foam style air filter, that was also rotten
when i got the bike. I installed K&N cone type filters, but the engine didn't had the performance
like it should; after i was totally stuck, changing jets and trying on the road, i had it on a dyno, where we proofed, that it ran too rich with the ORIGINAL jets and the K&N's!
I had to lean the jets over 5 % and then it had the power it should,
proved by the dyno...
could it be, that the K&N's usually have more flow resistence than a foam type filter?

greetings to you all from Germany

Dörg