Hi

Got my engine to run just fine but in the wrong direction, notice after reading the instruction that I had put the sencing pin 35 degrees before TDC not after like the instruction said. Fixing that problem the engine backfire every time and almost crussed my three fingers that I used to flip the prop. Now when I check this again I noticed that I have almost 20 degrees of slack in the TDC area. My question is shall I add my 35 degrees after those 20 degrees or what?