I tried to obtain the Diesel Engine Manual from my local dealer HROWEN and was told it is not available, I put pressure on them to supply me with one but no news as yet, I will see how I get on with them. In the meantime Peter, if you can kindly brief me on how to adjust the cold start setting as I know for a fact it is to do with the wrong mixture when starting from cold that is causing the rough idle and smoke, what I do is try and drive off as soon as the engine has started and in a minute or two the engine begins to idle properly and at full power, although at first there is no power. Your help will be appreciated. Thanks, Mike