How do you measure shaft length on a trolling motor?

Asked By: Sheyla Orritt | Last Updated: 10th March, 2020
Category: sports fishing sports
4.6/5 (646 Views . 25 Votes)
The standard shaft length is 42". To determine the right length for your boat, measure the distance from where the shaft is mounted on the deck or the transom to the water. Then add 16" (for MotorGuide) or 20" (for Minn Kota) and select the next closest measurement.

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Likewise, can you adjust the shaft length on a trolling motor?

If the shaft ends up being a bit too long, you can always adjust the shaft depth upward with the depth collar adjustment found on nearly all trolling motors. But if you pick a shaft that's too short, you're simply out of luck.

Additionally, how fast will a 55 lb thrust trolling motor go? In fact two 55 pound thrust motors will not move you any faster than one 30 pound thrust motor. Higher thrust 12V trolling motors are designed for bigger heavier boats with larger payloads. The maximum speed of a trolling motor is 5 mph regardless of how many pounds of thrust.

Thereof, what size trolling motor do I need for my boat?

Trolling Motor Thrust Guide

Boat Weight (lbs) 1,500 4,000
Boat Length 14-16' 21'
Minimum Thrust 55 80
Performance Thrust* 55 112
Motor Voltage 12v 24v

How many pounds of thrust does a 2.5 hp outboard motor have?

55 lbs

33 Related Question Answers Found

How much thrust do I need for a canoe trolling motor?

Canoe size
For most canoes, a 55-lb thrust motor will provide more than enough power to haul a fully loaded boat. Smaller 30-40 lb thrust motors will work fine for smaller loads, plus they'll drain your battery at a slower rate.

How long can you troll with an electric motor?

Divide that by 2.4 and I get about 58 amp hours. Lets assume my motor is the Endura 30 mentioned above, and I troll at speed 2, which is 10 amps draw. You don't want to draw the battery all the way down to 0, since that will damage it.

How Long Will My Motor Run.
Amp Hours Amp Draw Hours Use
100 40 2.1
100 50 1.7

How many pounds of thrust is 1hp?

One horsepower is 550 foot-pounds per second. So at 550 feet per second (375mph), each pound of thrust is one horsepower. At 825 feet per second (560mph), each pound of thrust is 1.5 horsepower.

How do I choose a thrust for a trolling motor?

Boat weight plays a vital role in selecting the correct trolling motor for you needs. A general rule for determining the correct amount of thrust is adding 5 pounds of thrust for every 200 pounds of weight.

How long do trolling motors last?


A typical day for me is 6 to 8 hrs on the water with the trolling motor running moderately to constantly at slow speeds. (Just to keep the boat moving for slow drifts - musky or bass fishing). 6-8 hours seems reasonable with an older motor.

What is the diameter of a Minn Kota trolling motor shaft?

This is the complete hinge assembly that fits most trolling motors with a round 1-1/8" diameter shaft. It fits the Minn Kota Camo, Classic, Endura, Maxxum (55 lb thrust and under), Riptide (55 lb thrust and under), Turbo, and Vector models with the Lever Lock Bracket.

What is the best trolling motor for a kayak?

Best Kayak Trolling Motors For 2019
  • ?Newport Vessels Kayak Series 55 Lb. Thrust Trolling Motors? - Editors Choice.
  • ?Goplus 46 and 55 Lb. Thrust Trolling Motors.
  • ?Haswing W20 20 Lb. Trolling Motor.
  • ?Minn Kota Endura C2 30 Trolling Motor.
  • ?Minn Kota Riptide 45 Lb. Trolling Motor.
  • ?Minn Kota Traxxis 55 Lb.
  • ?Saturn 55 Lb.

Can you run a trolling motor out of water?

Your motor is cooled by the water around it, while running it out of the water for a very short time would be OK, it would take a long time to drain the battery much running the motor out of the water with no load. Why risk damaging a very expensive TM to just drain the battery down.

Which is better Minn Kota or MotorGuide?

Features Comparison. Minn Kota clearly is ahead of MotorGuide when it comes to offering a more advanced and robust feature set on their trolling motors. For years, Minn Kota has offered GPS technology, a feature only recently available on MotorGuide motors.

How many amps does a 40 lb thrust trolling motor use?


Conductor Gauge and Circuit Breaker Sizing Table
Motor Thrust / Model Max Amp Draw Circuit Breaker
40 lb., 45 lb. 42 50 Amp @ 12 VDC
50 lb., 55 lb. 50 60 Amp @ 12 VDC
70 lb. 42 50 Amp @ 24 VDC

What is the best electric motor for boat?

The Best Electric Boat Motors:
  • Minn Kota Endura C2 30 ($99)
  • Minn Kota Endura C2 55 ($257)
  • MotorGuide VariMAX V55 – Freshwater, Pontoon Mount ($414)
  • Torqeedo Travel 1003 ($1,999)

What's the difference between 12 volt and 24 volt trolling motors?

A 12-volt trolling motor is the most inexpensive and easiest to run. It does, however, lack the staying power and thrust that the other two provide. A 24- or 36-volt system will allow the angler to fish longer periods out on the water, as they draw lower amps while providing increased thrust for more power.

What is the largest 12 volt trolling motor?

As far as I can tell, the Minn Kota Endura MAX 55 lb is the strongest thrust 12 volt troller made.

Can you put a bigger motor on a boat than its rated for?

Can I use a bigger motor on my boat than what it's rated for? It is not a violation of Coast Guard regulations to install or use an engine larger than specified on the capacity label, but there may be state regulations prohibiting it, and restrictions from your own insurance company regarding this.

How do you use a trolling motor foot pedal?


Typically, when the steering pedal is pushed forward (toe downwards, heel up), the trolling motor will turn to the right. When using your heel to push the pedal backwards (toe upwards, heel down). The best way to get the hang of steering and operating a trolling motor is practice.

How fast can a 50 lb thrust trolling motor go?

In fact two 55 pound thrust motors will not move you any faster than one 30 pound thrust motor. Higher thrust 12V trolling motors are designed for bigger heavier boats with larger payloads. The maximum speed of a trolling motor is 5 mph regardless of how many pounds of thrust.

How fast can a canoe go with a motor?

So a hull with a 15' waterline can go about 5.2 knots (5.7 mph). Now you have to consider how much weight you're trying to move. It'll take longer to get more weight up to speed. But even if you have a high HP motor, after you get to the max hull speed, giving it more power will only dig you into the water more.