I am having problems with starting my wr450. It has always been really quick to start, I mean 2 seconds on the E-button and it is running. I just checked the valves last week and they were within tollerance. I had not been riding in the last 9 weeks, however I did start it a couple of times. I started great saturday AM , however in the afternoon it was becoming diffilcult.. The air cleaner is clean. Sunday and today it is more difficult to start. I am not sure what it is,, Any help would be appreciated, Thanks.