After about 300 miles my motor revs are quite high when I first start up the motor and then revs down to a somewhat normal rate, but still just a tad high. I use the choke until its warmed up to slow the revs. If I put the choke to full it will cease to run which kinda makes me think it is not an air leak. I have not checked for air leaks as yet because I have run out of WD and am not really sure of any other way to check and I'm thinking it might be something else. I have not done any mods yet. Any help at all whether right or wrong is much appreciated.