Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 102Get this manual
Control Arm Lever Components
1Trigger Plate Pivot
28ali Joint
-4link RodNutSpark Advance LeverMaxSpark Advance ScrewNut
10Pic kup iming Screw 11Nut
13 14 15 16 17 Thro ttl Lever Screw (1-34"44.45mm) Throttl Lever Bushing Spark Advance ever Bushing Spring
,8Washer 19Idle Slop Screw