I just installed a full FMF 4.1 system and mega bomb header on my 08 wr450f and it took a good many kicks before it fired up. Once it did it there was a small bit of coolant on the floor. All hoses are on tightly and no cuts in them. The bike is like brand new so theres noe hose issue. However in the casing for the water pump i noticed a tapped out screw hole. This seemed to be the place where the coolant was coming from. It was only a small drip form not flowing out. Once i shut the bike off there was a burning smell from the header, midpipe and muffler( Possibly where its new?) I also herd the coolant in the rad bubble. What could possibly be the problem?