Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 59Get this manual

Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 59

2Remove sound box cover from engine 4With idle stop screw on throttle arm against stop and throttle roller just touch ing throttle camadjust idle SlOp screw to align slash mark on throttle cam with center of throttle rollerTighten idle stop sc rew lock nut
aIdle Stop Screw Throttle Ro tterThrottle CamSlash MarkLock Nut

5Whi le holding throtlle roller steadytighten six carburetor synchronizing screws

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