2wheelindave

I don't want to reply to this question. I have another question. If I put K&N filter on a stock engine do I need to rejet or move the clip on the needle? I did motorcycle repair and salvage from 1975-2000 so I do know motorcycles, and have built many. Also if I do have to rejet, do the jet sizes go like from 130 to 132.5 or do they go from 130 to 135 I am talking mainjets here not pilot or starter jets. I also have a DT125 1978 for parts if anyone is interested. Just email me. Thanks for your time... Dave