hi guys ive recently restored a gpz 500 that lay in a garage for 4yrs the tank was rusty inside had bike running with tank off putting petrol in to fuel pipe ran ok a bit spluttery dying when revved as there had been fuel left in bike stripped carbs cleaned jets and reassembled bike was stipped engine frame painted swinginarm removed welded resprayed tank and plastics resprayed wheels etc as this took a few months over winter bike now rebuilt but wont start tank cleaned out and inline filter put in fuel getting to carbs both plugs sparking tried with tank on and running fuel straight into main fuel line now and again a loud backfire tried pouring fuel down bores heating plugs brand new battery its driving me crazy any info much appreciated thanks guys:upset: