1995 175 Ocean Runner won't start after being propped up

[DavidES]

My 1995 175hp will not start after it has been propped up for 1 or 2 hours. I am loosing just about all fuel pressure in the primer bulb. When I pump it up and try to start it will crank and crank like its not getting fuel. Eventually it will crank about 1/4 turn and spit. It will do this back and forth and eventually start. It will run rough for a minute and then its ok. It will run and restart fine until you let it sit up. It runs fine other than this restarting problem. My local Johnson repair store is trying to tell me that its a starter/voltage problem and want to replace the starter. The problem was tolorable until I recently took it in for repair and now its three times as bad. I left the boat doctor and went staight to the dock and it would not start. Eventually after 5 min of cranking it started. They told me that it started fine for them every time. I put the motor down when I left it there and it did not get put in the up position until about 2 hours before I picked it up. It seems to be a fuel problem to me. HELP!

 

[kenmyfam]

Re: 1995 175 Ocean Runner won't start after being propped up

Are the plugs getting wet when you have cranked it for a while without it starting ??

Welcome to iboats

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

Hold on and I will check. Just went out and trying to start it 5 min ago. It will crank and crank seems like no fire.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

Ok, plugs on right side are wet and all but one plug on the left side is wet. Some of the plugs on the right side are really wet.
Note: I changed the plugs about 2 weeks ago. Before I changed the plugs I did not notice the problem as bad. I just changed them to try and smoth out the idle. I gapped them as to what my local johnson tech said to do.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

I still have the old plugs. Should I put them in and try it?

 

[tashasdaddy]

Re: 1995 175 Ocean Runner won't start after being propped up

check your spark. with a spark tester. jump 7/16 inch gap.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

ok, Thanks.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

I did not have a spark tester so I went on and put the old plugs in. It started almost right away. I still got the 1/4 turn with the when I turned the key, but it started in about 15 seconds. The new plugs were fouled worse than the old ones. When I went by to check on the progress at the repair shop they were running some carb cleaner through the motor. Lots of smoke and nasty water coming out of the prop. Could this have fouled the plugs?

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

My repair tech said to gap the new plugs at .030. The old plugs that I put in last year were gapped at .040. It is back running on them now. I believe I got the .040 gap off a online johnson forum. Most seemed to think that their 175 ran better at that gap. Not sure who is right but the online gap seems to work better than what my johnson tech said to use. If this was the problem then why would it run great once I got it started before on the new plugs gapped at .030 and olny present a starting problem when it has been sitting up for a few hours?
Thanks again for your help!

 

[kenmyfam]

Re: 1995 175 Ocean Runner won't start after being propped up

You should really invest in a spark tester and check the spark out.

 

[jonesg]

Re: 1995 175 Ocean Runner won't start after being propped up

Fuel is probably pouring out the carb throats when tilted, it goes in the airbox and down a tube to cyl #6 (I think), end result is it floods the engine.

You can check it by removing the airbox and tilting the engine.

In that case, to start the engine pull the controller out of gear and open the throttle half way, it should fire right up , throttle back below 1500.
It should clear right out.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

Just came in form being out. The motor started fine in the yard and while we were drifting. Then I ancored up for about 2 hours it would not start. It would crank and crank and after 5 min it started to slighly start and eventually started. It seemed to be a little sluggish at first, but ran great for the 10 min trip in. It also started fine in the yard when I got in. It did not seem to get flooded when I was cranking and cranking. Could it be a choke problem?

 

[kenmyfam]

Re: 1995 175 Ocean Runner won't start after being propped up

Just came in form being out. The motor started fine in the yard and while we were drifting. Then I ancored up for about 2 hours it would not start. It would crank and crank and after 5 min it started to slighly start and eventually started. It seemed to be a little sluggish at first, but ran great for the 10 min trip in. It also started fine in the yard when I got in. It did not seem to get flooded when I was cranking and cranking. Could it be a choke problem?

What is your starting procedure ???

 

[clanton]

Re: 1995 175 Ocean Runner won't start after being propped up

Check the vapor seperator, clean, replace/ rapair the small pump on top of the seperator, insure float is working, hose is not crimped. Drill the primer nipples out to .060. This engine has Quick Start, but will start better, with a little throttle sometime.

Carbuators floats have to be set and work.
All battery cables, starter cable, and solenoid should be checked for voltage drop.
VRO tank located below engine height
VRO tank vented
Anti- siphon valve should be OEM orignal, or knock the ball out.
Check the ignition system output to coil, at idle and full throttle In water In gear, with peakreading meter.
Plug gap .030

I would check all of this first.
Orignal starter was probley ok.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

When I start the engine cold I pump the primer bulb tight, give it slight throttle, push the choke in 2 times, and start. This is not working now. It has worked for ten years.

 

[clanton]

Re: 1995 175 Ocean Runner won't start after being propped up

That may be because the primer nipples are stop up with the same junk that you find in the carbs. If the plugs are wet with fuel, and not oil, its is not firing. Comming problem with this engine . Powerpack. Do a search this site, should be hundreds of post on ignition system. You have to put the meters on it and run in water to load the engine.

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

I took the boat to my tech today and he said that I was flooding the engine. He started the engine up within 30 sec. He said to pump up the primer bulb, turn on the key and push in the choke, at the same time the choke is in massage the primer bullb to bypass the choke, then start the engine without using the choke. I waited and let it sit up for 6 hours and tried it again and it worked. Why would my starting procedure need to change all at once?

 

[kenmyfam]

Re: 1995 175 Ocean Runner won't start after being propped up

I took the boat to my tech today and he said that I was flooding the engine. He started the engine up within 30 sec. He said to pump up the primer bulb, turn on the key and push in the choke, at the same time the choke is in massage the primer bullb to bypass the choke, then start the engine without using the choke. I waited and let it sit up for 6 hours and tried it again and it worked. Why would my starting procedure need to change all at once?

Beats the heck out of me ??? sounds like a trick to help out if something else is wrong. What does your handbook say regarding starting procedure ???

 

[DavidES]

Re: 1995 175 Ocean Runner won't start after being propped up

Handbook is long gone. I agree it seems loike this starting procedure is bypassing the problem. If I am bypassing the choke then maybe the choke is bad. Although he told me that they checked the choke and its ok. I can hear the choke clicking when it is pushed in. Don't know if it is actually working. All I know is that I have started it 3 or 4 times this way and the problem seems to have gone. He tells me that the motor is fine and its just one of those old age things that happens.

 

[jonesg]

Re: 1995 175 Ocean Runner won't start after being propped up

I took the boat to my tech today and he said that I was flooding the engine. He started the engine up within 30 sec. He said to pump up the primer bulb, turn on the key and push in the choke, at the same time the choke is in massage the primer bullb to bypass the choke, then start the engine without using the choke. I waited and let it sit up for 6 hours and tried it again and it worked. Why would my starting procedure need to change all at once?

That doesn't bypass the choke because you are pushing the choke in and pumping the bulb, that would compensate for low pressure at the choke. MAybe your fuel pump is down on pressure.
Or the bulb valve is leaking pressure backwards.

I would want more specific answers if I paid a mechanic, sure its getting old but exactly which components are going south that causes this.