spurs59 Posted February 28, 2014 Share Posted February 28, 2014 which is the best air filter for the yzf 125r Link to comment Share on other sites More sharing options...
Preload Posted February 28, 2014 Share Posted February 28, 2014 Generally original. K&N are OK but costly. Link to comment Share on other sites More sharing options...
spurs59 Posted February 28, 2014 Author Share Posted February 28, 2014 if fitting a k@n filter would I need to get the fuel ratio fixed or is that only done when adding a scorpion exhaust has well 1 Link to comment Share on other sites More sharing options...
blackhat250 Posted February 28, 2014 Share Posted February 28, 2014 Yeh spurs, air filter will run without jetting, but with the exhaust mod, it will need adjustment,,, and its not easy to get right,, Link to comment Share on other sites More sharing options...
spurs59 Posted February 28, 2014 Author Share Posted February 28, 2014 would you kindly explain how the jetting is done has these bikes have no carbs Link to comment Share on other sites More sharing options...
Preload Posted March 1, 2014 Share Posted March 1, 2014 Assuming the filter is flowing more air the FI may need adjusting but some do this automatically but only within a small range, this only matters if a open exhaust system is fitted. There are a few cans on the market that claim there is no need to alter the fuelling. Link to comment Share on other sites More sharing options...
yammycafe Posted March 11, 2014 Share Posted March 11, 2014 Hi. Im also in need of advice on this. If I was to fit k&nfilters direct to my carbs will I need to replace the jets or do any other carb work for that matter? Link to comment Share on other sites More sharing options...
Preload Posted March 13, 2014 Share Posted March 13, 2014 Yes the jetting be totally different, also if you are not using the original airbox the tuned length will be shorter and effect the whole engines characteristics. Link to comment Share on other sites More sharing options...
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