Hi, I finally get my new bike after waiting since june when I signed the deal. I plan on changing the oil to synthetic mobile 1 15w-40. Just wanna make sure im not gonna ruin the clutch. Also if I leave the stock exaust on and I remove the snorkle and put on a uni or K&N air filter on what should my jets be? Im afraid if I go 158 main and 55 pilot it will be to rich. I plan on drilling the slide and spacing the needle. Thanks, joe P.S Whats the deal with the long pilot jet as compared to the short or slow?