when you are asking for help. give model ,year, size. also give brief history. saying i have a 350 and it wont start is not the way to ask for help. everybody has to ask all sort's of questions to find out after 10- 15 reply's that the bike sat for 8 month's with old gas in it.
say i have a 2008 Yamaha 350 and the machine has been sitting for a while and won't start.
or bike has no power. went in some deep water before this started happening.