While in Simulator Mode, the Fishfinder displays a bottom scene, and you can control the Fishfinder (except the Gain and Auto Gain options) just as if it were on the water. If no keys are pressed for two minutes, the Fishfinder automatically resets to default settings while in Simulator Mode. To exit Simulator Mode, turn off the Fishfinder. Fishfinder 90/140 Owner’s Manual INSTALLING YOUR FISHFINDER > PACKING LIST INSTALLING YOUR FISHFINDER Make sure you completely read and understand all instructions before you install and use your Fishfinder. If you have problems, contact Garmin Product Support, or seek other professional assistance. You can install the Fishfinder hardware on a transom or on a trolling motor. Before installation, make sure the wiring harness can reach the Fishfinder and transducer locations. Check the packing list below. If you are missing any items, contact your Garmin dealer. Packing List (one of each, unless otherwise noted): A—Fishfinder sonar unit B1—Swivel mount bracket (Fishfinder 140; optional for Fishfinder 90); or B2—Tilt mount bracket (Fishfinder 90) C—Swivel base (Fishfinder 140) D—Mounting knobs E—Mounting knob spacer F—Snap ring G—Transducer with power cable H—Transducer mount Fishfinder 90/140 Owner’s Manual I—Trolling motor mount gasket J—5 mm Flat washers (2) K—5 x 30 mm Screws (2) L—10-32 Lock nut M—4 x 12 mm Screws (4) N—10-32 x 1.75 Screw O—1/4" Cable clamps (2) P—Plastic spacer Q—1/4" Rubber washer R—Cable tie, 5.6" (4) S—Cable tie, 20” JKLMNOPQRISG(Cable not shown) CDEB1F(Fishfinder 90) B2(Fishfinder 90) (Fishfinder 140) AH INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER Installing the Transducer Assembling the Transducer 1. Insert the rubber washer (Q) and plastic spacer (P) into the transducer (G) at the same time. DO NOT lubricate the rubber washer. 2. Route the cable toward the back of the transducer. Slide the transducer into the transducer mount (H). 3. Place a 5 mm flat washer (J) on the 10-32 x 1.75" screw (N), and insert the screw through the transducer mount, spacer, and rubber washer. 4. Place the remaining 5 mm flat washer on the exposed end. Install the 10-32 lock nut (L) finger tight. You can tighten the transducer further after installation on the boat. Back of the transducer Cable tie slot Mounting the Transducer on a Trolling Motor 1. Slide the large cable tie (S) through the slot on the transducer mount (H) with the ridges of the band facing up until equal lengths extend on both sides of the mount. (NOTE: For cold water, or heavy timber or debris areas, a metal 4-5" worm gear clamp is recommended.) 2. the transducer mount. 3. propeller. Fishfinder 90/140 Owner’s Manual Position the mount gasket (I) on the curved top of Place the transducer assembly against the motor body of the trolling motor, with the front of the transducer pointed away from the trolling motor INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER 4. Wrap the two ends of the cable tie around the motor body. Place the pointed end of the cable tie through the fastener hole on the opposite end and pull it through until it is snug but not tight. (The cable tie clicks when you pull it.) 5. Position the transducer so that it is parallel with the bottom when in use, and make sure the gasket is aligned properly. Pull the cable tie end until tight. Trim off the excess, if necessary. Tighten the 10-32 locking nut until it touches the mounting bracket and then tighten 1/4 turn more. (Do not overtighten.) 6. Route the 20’ (6 m) transducer cable using the supplied cable ties to secure the cable to the motor shaft. You can fill the forward-facing portion (except the cable tie pocket) of the transducer mount with sealant to avoid accumulating debris. Mounting the Transducer on a Transom Tool List (not included)—drill, 3/8" wrench or socket, 5/32" and 1/8" drill bits, masking tape, #2 Phillips screwdriver, and marine sealant. When selecting a transom mount location, consider the following for optimal performance: • For your sonar to operate properly, the transducer must be located in calm water. DO NOT mount the transducer behind strakes, rivet lines, struts, fittings, water intake, discharge ports, eroding paint, or anything that creates turbulence. • Mount the transducer as close to the center of the boat as possible. • DO NOT cut the transducer lead. (This voids your warranty.) • DO NOT mount the transducer in locations where it might be jarred when launching, hauling, trailering, or storage. Fishfinder 90/140 Owner’s Manual 7 INSTALLING YOUR FISHFINDER > INSTALLING THE TRANSDUCER • DO NOT mount the transducer in the path of the prop on single-drive boats. The transducer can cause cavitation that can degrade the boat’s performance and damage the prop. On twin-drive boats, mount the transducer between the drives, if possible. Do not mount the transducer behind strakes, rivet lines, struts, fittings, water intakes or discharge ports. Mount the transducer parallel with the water line. Make...