Thanks Tyler and AVB,
All good now, gave the decomp valve a clean with carby cleaner and now it works as it should. I had to make up a pawl spring for the pull starter I would say the Husqvarna spring is the same but I needed one quickly. Then I ended up making a 19mm wooden spacer so that I could modify and fit one of the 550E type Briggs air filters. Had to cut the top and the bottom out of it. Doesn't have the same surface area so it will need to be checked more often but they are cheap and readily available
