Is this motor a lost cause or will I get it running? I check out this old Mercury 2 stroke outboard motor to see if it has what it needs to run. I recently purchased an old Mercury 7.5 hp 2 stroke outboard engine from 1971 that had not run in years. Will this engine run? Can I get this old 2 stroke outboard running again? I cover the process I use to evaluate an old engine and the tests I do to see if it has the potential to run and what to check before you start spending money on parts. Testing an outboard motor isn't hard and you only need a few special tools to do the basic tests to see if it will run.

In this video I show you how to do a compression test, how to use a spark tester and step-by-step process of troubleshooting and evaluating an old 2 stroke outboard motor to see if it will run. I show you how to check for spark on an outboard engine. I show you how to use a compression test gauge and what the results mean when checking an outboard motor. I show my process for troubleshooting fuel issues and how to follow a logical path to identifying fuel and carb issues on older outboard motors.

#2strokeoutboardmotor #mercury2stroke #willitrun

Do you need a compression test kit? https://amzn.to/3dmydHr
Do you need a spark testing tool? https://amzn.to/3axd1wH
Do you need a Mercury fuel adapter? https://amzn.to/3bhUN1g
As an Amazon Associate I earn a small commission from qualifying purchases.

Timestamps:
00:00 Introduction
00:41 How I got this outboard motor
01:45 Basic things to check first
02:26 Removing the engine cover and looking over the engine
05:10 What an outboard engine needs to run
05:53 The tools we will be using
07:00 Removing spark plugs and performing a compression test
13:00 Testing for spark on both cylinders
16:27 Overview of a 2 stroke outboard motor fuel system
19:45 Replacing old worn fuel lines
24:38 Old style Mercury fuel connector
27:50 Testing to see if fuel flows past the fuel pump
29:50 Initial start test
32:50 Checking for fuel in the cylinders
34:11 Final start test

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