Depends on your definition of "new". New new or ebay used new? New new yes great, expensive. Ebay used "new", still strip it, replace parts that are needed, then fit.
If it's cranking and not starting then the F1 light will come on, and it'll probably flash a few times too, it's a code thing they give out normally. But if the engine has siezed and is now moving again, then you need to do a compression test with a compression tester, not just sticking your finger in the hole and saying yes there must be compression because I can feel it. A PROPER TESTER. That's your first piont of call.
Hi Caroline. Look in my threads and you will see I had an S Wing with loads of problems but I've sorted them all now If you need advice please ask as I think I have literally rebuilt the whole thing! How many flashes are you getting?