I have a 2006 Lowe 160 Stinger Aluminum boat. I am up grading from PD 40# to PD V2 55# which has a heavier lower unit ...Problem is this unit mounts closer to the front edge of my boat and after 6 years of use there is a split in the aluminum edge/seam of my boat. After I have this fixed I plan to install the new motor. Is there any advise to prevent further damage to the bow of my boat? I do check periodically for loose fasteners.

That type of information is never published. There are generic boat wiring diagrams and a link to Lowe boats, so you could ask them direct.

https://www.google.com/search?q=1999+Lowe+70w++boat+console+wiring+diagram

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https://www.caretxdigital.com/lowe-boat-wiring-diagrams/

The model Elite 5x from Lowrance is a bit out dated, I currently have one on my boat, That model would require GPS signal to be able to read MPH unfortunately it does not. Not sure if they made a GPS puck for that model. That wire lead set can and probably is being used on a few different models that support that function. Hope that helps.. BTW I have had mine since 2013 and still works great. There is a GPS speedometer available through LOWE boats with 4 INCH bezel. I am a LOWE boat dealer, General Manager at Beacon Marine in Junction City KS.

on the transom outside of the boat silicone the bolt holes

Water pump failure.

Depending on the item in question, trolling motor, for example, there is a fused/breaker directly running off positive side of battery. Looks like a pill box or match box. Several people have had their trolling motors quit working and this is usually the culprit. Much of the fusing runs directly of hot wire from batter to item in question. However, I will paste a URL here for you. http://www.marine-electrical.com/resourcelibrary/wiringdiagrams2.aspx

The heat is developed from to much resistance from batteries to TM, check for loose/corroded connections at batteries, including the jumperwire, also check the size of wire from battery to plug, should be at least 8 gauge if not 6 gauge depending on the length of run. If corrosion has built up inside the wires this will also cause high resistance causing excessive heat build up. I would prolly just replace boat wiring to make sure none of the above problems are present. Use tinned copper marine grade wire that is multi stranded.

All of the nuts and bolts are metric on it. It helps to use a 13mm swivel socket on the starter bolts but you can use a wrench if you need to. Also, a 7/8 open end wrench for the 02 sensor, or an 02 sensor socket.

Let me give you the steps for the starter and also the front engine mount bracket. You don't have to remove the entire mount, just the bracket

REMOVAL

1. Open Hood.
2. Disconnect the negative battery cable.
3. Raise vehicle and support.
4. Disconnect the electrical connector from the 02 sensor.

Remove the 02 sensor from the exhaust manifold .

Remove the front mount through bolt.

Remove the front mount bracket from engine block.

Remove the battery cable from starter.

1. Remove the lower starter bolt and remove starter.

INSTALLATION

1. Install starter to transmission.
2. Start the upper starter bolt.
3. Start the lower bolt and snug it so that the starter will not move.
4. Remove the upper bolt.
5. Connect the battery cable and torque nut to 8.5 Nm (75 in. lbs.).
6. Install the front mount bracket and check heat shield location.
7. Install bolt the upper bolt and torque bolt to 54 Nm (40 ft. lbs.)
8. Install the lower and torque bolt to 54 Nm (40 ft. lbs.)
9. Install the front mount through bolt and torque bolt to 61 Nm (45 ft.. lbs.)
10. Install the 02 sensor and torque to 27 Nm (20 ft. lbs.)
11. Lower vehicle.
12. Connect the negative battery cable.

FRONT MOUNT

REMOVAL

1. Raise vehicle.

1. Remove front mount to bracket horizontal through bolt (Fig. 87).
2. Loosen the rear mount through bolt.
3. Remove front mount vertical bolts (Fig. 87).
4. Remove front mount and separate the starter heat shield.

INSTALLATION

1. Position front mount on lower radiator crossmember.
2. Loose install front mount to bracket through bolt.
3. Install front mount vertical bolts. Tighten bolts to 61 Nm (45 ft. lbs.) . (Fig. 87).NOTE: Be sure the weight of the engine is static and in rest position. this for a 2.7 v6

Transducer will stop getting readings if it gets air under it. If it's lower surface is too much above or below the bottom of your boat, this can happen.