14-02-17, 05:50 PM
Don't know if you have tried this but next time you start it up at work open the fuel cap first, then start it up. If it starts up ok then I would check that all the hoses are clear of debris and gunk and not kinked and replace them. I realise that you have said before that you have checked them but if it is mayonaise type gunk it is hard to clean it out properly and replacement hose is cheap.