Thursday, September 15, 2011

Why won't my evinrude 65 hp outboard motor start?

when i turn the key the starter motor works and kicks up and gets the flywheel going, but it just doesn't sound like it is going to start. i changed all the spark plugs, and have a fairly good battery
Why won't my evinrude 65 hp outboard motor start?
three things your motor needs to start: compression, spark and fuel.



Spark test is accurately described above.

Compression test, a cylinder 10 percent lower than the best cylinder is enough to prevent it starting.



Starting fluid has no lubrication -- don't spray it into the carb of a 2-stroke outboard. Use premixed fuel/oil in a spray bottle instead.



Check the fuel system as described in the first answer above.



Give us the year and make of the motor, we can give better advice.

+++++++++++++++++++++++++++++

%26quot;the year make is 1973%26quot;

by %26quot;make%26quot;, I mean who made it.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

%26quot;the motor is a evinrude %26quot;

ok, 3 cylinders, 3 fixed-jet carbs, CD ignition.



post the results of your compression test and spark test.
Why won't my evinrude 65 hp outboard motor start?
First check to see if you have spark at the plugs, if not it may be a bad coil. If you have spark check to see if you are getting fuel to the cylinders. The best way to do this is to unhook the plug wires from the plugs, crank the motor over then remove all the plugs and see if they are wet. If they are not wet then you are not getting fuel to the cylinders. This could be caused by a collapsed fuel line, bad fuel pump, or plugged carb. Remove the drain plugs on the bottom of the carbs and check if any fuel in them. If they have fuel but it is not getting to the cylinders you most likely have a plugged carb which you will have to take the motor in to have it cleamed and adjusted.

Hope this may help you out with your problem.
take out one of the spark plugs, and check for spark, don't hold the spark plug lead as it will give you a shock if it is sparking, check fuel is being pumped, grab a can of aerostart and give it a squirt into the carbi, and crank it over, check your fuel condition, my out board wouldn't start, changed plugs new fuel spent all day working on it and found that the fuel line inner had delaminated, the fuel in the line was black and this was preventing the motor from firing. changed the fuel line and started and ran fine.
Sounds like a fuel problem if motor is turning over. A lot of thing come to consideration how old is the motor what's the fuel ratio is the fuel bulb cracked are u actually getting a spark is there a choke electric manual or both.
how old is the gas ?

fuel filter ?

choke not working ?

check if you have a spark by removing one spark plug and place it on the block so it has continuity and watch when it cranks.

do you have breaker points ?