Well done Nolan, spraying on the outside was not what I meant, but hey heck if that works then so be it. As you guessed it had an air leak somewhere. Be nice for you to get that module out from inside the flywheel,before you start mowing the lawn. I run a 1/4" whit tap through the 2 holes and use my puller to pop it off, nice and easy. Where in Melb are you, happy to help if you are not too far away.