I have a 2009 Suzuki Boulevard M90 it has sat in my garage all winter with the battery out of the bike on a tender. I put the battery back in the bike today and now it wont start it just cranks and cranks .. I emptied the gas and filled with new and added SEAFOAM.. still wont start.. so I replaced both spark plugs.. still nothing. so I took the right side air breather off and sprayed starting fluid into the engine and it fired... what is the problem.. could it be a bad fuel injector(s) .. or bad fuel pump? please help im at an end .. I know im getting somewhere because I got it to fire on starting fluid ..