1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 162Get this manual
Quality of the image is intentionally reduced!
6-19 POWER UNIT (5) Install timing chain guide No.2 1
1 Plunger 2 Latch 3 Body 4 Stopper
(9) Install timing chain tensioner adjuster 4 Apply engine oil to timing chain.