Van van down on power.

[embee]

How much oil have they put in it?

Enough.

[Sir Trev]

You need to check all the stuff done on the service: air filter (seated properly, the right one), oil level, plugs (correct type, gapped right, seated right), chain tension and lubrication (is it dry), do the wheels spin freely or are the brakes binding, breather hoses not trapped by tank when re-fitted,etc. Something may have been missed or done too quickly.

Thanks Trev. I'll give them a check when I see him tomorrow.

[Sir Trev]

If it does turn out to be something not done right at the service I'd suggest going somewhere else in future. Most of us have encountered something not right after a service and it depends on how pushed the techs are. Could be a one-off though, and it could be unconnected...