starting issues

rzkas

Petty Officer 2nd Class
Joined
Aug 5, 2010
Messages
178
hi? why is the force 120 engine hard to start. i have 95 120 force outboard engine. i have replaced all the ignition components and new spark plugs but still it hard to start. it cranks but it doesn't start. the compression is good
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,762
Re: starting issues

There is no conventional choke on that motor.
There is a fuel enrichment valve, that releases fuel directly into the intake manifold.

Open fuel tank vent

Check the kill switch, place in "run" position

Squeeze fuel primer bulb till firm.

Advance the throttle 3/4 way, without putting it in gear. -- This is done by either pushing a button in the center of the controls, or pulling the shift handle toward the driver, or raising the fast idle lever, all depending on what control unit you have.

Turn the key to the on/run position.

Activate the choke (fuel enrichment valve) by pushing in on the key. The valve is only open while the key is being pushed in.

Turn the key to start while continuing to hold the key in.

Release the key and choke when it starts.

3-5 seconds of "choke", is usually enough.

Be ready to pull the throttle back toward the idle/neutral position, when the engine starts and the revs increase.

Continue to pull the throttle back as the engine warms up.

You should not have to use the choke much, if at all, once the engine has warmed up.

Engine should start within 10 seconds of turning the key.
 

Jiggz

Captain
Joined
Oct 23, 2009
Messages
3,909
Re: starting issues

hi? why is the force 120 engine hard to start. i have 95 120 force outboard engine. i have replaced all the ignition components and new spark plugs but still it hard to start. it cranks but it doesn't start. the compression is good

Would you mind stating your steps or procedures for cold starting?
 

rzkas

Petty Officer 2nd Class
Joined
Aug 5, 2010
Messages
178
Re: starting issues

hi? i usually do similar to the steps you mentioned but i will try your steps and see.
 

emoney

Commander
Joined
Jul 19, 2010
Messages
2,551
Re: starting issues

Those exact steps work every time on my '95 120hp
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,089
Re: starting issues

Undo the leads from the choke to the carbs.
Then try the key/choke and see if it spits out fuel.
If the cold start or idle advance isin't lined up right it won't advance the carb for extra revs.
Top post is a post from FrankA called a linc and sinc.Check this.
What is comp?
 
Top