I've had my 2007 crf250r for a couple years now always run well but for the past 2 years its sat in my garage and now I cant get it started changed the fuel in it got it started for about 5 seconds and it cut out and had a funny smell and now I cant get it started need some tips on getting it started the mechanic said it could cost me up to $1000 to fix so I'm gonna give it a crack myself