1.General NOTE 1. DWG. SHOWS MOUNTING BLOCKS AT ORIGINAL HEIGHT. 2. ENGINE WEIGHT WILL COMPRESS BLOCKS BY 4.5 mm (APPROX.). 3. MOUNTING BLOCKS ARE EQUIPPED FOR STANDARD ACCESSORY. 4. SHOWS CENTER OF GRAVITY. 007018-00E 9R1 (4) 3YM20C (with SD20 sail drive)