afetr Points service?

Hi,

When tyou have a major service i.e clearence etc do you have to run the engine a little?

I only ask as i had my B2H done and before I had it done when I pulled the throttle back I had to hold on for dear life but now the speedo goes up fast still but the pull seems to have gone.

Any ideas?

I should add that it’s been sat in the cold under a cover and not used for 2 weeks.