runnin

my 2009 450FE has been smelling hot lately and making a wheezing sound. plenty of coolant in the radiator and it doesn't seem to be running poorly at all, but the smell and sound are concerning me. should i replace the water pump? something else? thanks!

well i put a new ngk cr8e in and with the new full big gun exhaust and new no toil air filter its now very hard to start and making the plug turn black i also noticed its got like steam almost coming out of the exhaust after i shut it off. too much fuel? what do you guys think? carb is stock.