Hi guys , I just picked up a 98 kx500 that has been sitting for the last 3 years. Got it really cheap with a title but i don't know much about these big bores except they are monsters. I cleaned the carb out , new plug , fresh gas. It has a fmf gnarly gold series pipe on it and uni air filter ( no lid on air box ) and i live in Ohio . The jet in it now is a 172 , does anyone know if this should have a bigger jet in it due to the pipe ? ? Also i have mixed 3 oz. of klotz R50 to 1 gallon of 94 ( thats what a local shop told me to mix ) and it seems really rich in a heated garage. I don't really plan on riding it until it warms up , it's only 25 degrees here now. Any help would be great ! Thanks