I hate to overload the Repair Forum with a bunch of questions, but I didn't want to ask them all in the same thread. So here goes another one.
I ordered a compression tester and it will be here in a couple of days.
1. What is the target PSI to look for?
2. Will it affect the test if my carb is not attached to the intake manifold?
3. What are some other things I need to consider to get an accurate compression reading?(I've never done this before)
If it makes any difference, I have a 78 Vespa Grande