Changed plug and is running good but seems to be running a little bit hotter,u know what the gap is,i went by old one. I was gonna change rear sprocket for a little more low end but could find stock one,if i change the front sprocketshould i go up or down with the teeth?Thanks again!!!!  

spark plug gap should be set at .028,  front spocket, to lower gear ratio then you need to go down on the teeth