I agree that the Scrambler handbook says that valves should be checked/adjusted basically every service, which is why I queried it. But they are adamant that they don't check the valves till the 36 month service. They said they would if I wanted them to but it would be a long service and very costly - so I will leave it to them .. I guess if they checked valves at every service you would be paying a large sum of money for it each time? I don't feel the need to be paying in excess of £500 ...
What has happened with others who have had their second service?