yamaha 2013 waverunner

[dombarb]

Hard starting and wont run when throttle is advanced. Cleaned the fuel rail and injectors and repl;aced the spark plugs. No benefit. Sounds like it is not getting fuel when the throttle is advanced?? Any suggestions appreciated. New user to this site. thanks Dom costabile

 

[QBhoy]

Hi Dom. what particular model and engine are we talking about here ? Have we checked the basics like fuel filter and similar ? Is there signs of unburnt fuel out the exhaust that may show in the water or as a smelly mist on the trailer, that may suggest leaking injectors ? Have we pulled the plugs for a look at their condition or even for signs of water from incorrect starting procedure when on trailer and hose ?
How’s the impeller to wear ring for obstruction that may cause it to struggle ?

 

[dombarb]

Hello QBhoy and iboats,

Based on the details below, I'm wondering if you have any ideas or suggestions to get the PWC below running again.
(Note: If I could edit the title of this thread and move it to the correct forum, I would but I'm not able to it appears.)

DETAILS:
2010 Yamaha FX Cruiser HO (FY1800AJ)
40 hours
Freshwater / Saltwater use

BACKGROUND:
Stored on a lift on a canal in Southwest Florida
It last ran normally approximately 2018 in Florida
Did not run or was not started from approximately 2018 to February, 2022

CURRENT PROBLEM:
VIDEO:

WaveRunner does not currently start when pressing the green Start button
Been working on this same problem off and on since February, 2023

PAST PROBLEM:
VIDEO:

Earlier this year, the WaveRunner would start and run very roughly for anywhere from a few seconds to 45 seconds, then shut off
RPMs would randomly spike from 800 to 1,400, then go back down to 800, then spike again... until it shut off
Original problem in February, 2022 was the impeller housing "bubbled" making the impeller unable to spin / run

WHAT HAS BEEN DONE / CHECKED:
Verified the WaveRunner is Unlocked using the remote
Removed impeller, impeller duct, impeller housing, and shaft (all are currently out)
Replaced battery (twice)
Removed and inspected air filter
Disconnected and reconnected electrical connections looking for any problems
Replaced the 4 spark plugs (twice)
Siphoned out all fuel (twice)
Removed the fuel pump, replaced the fuel filter, then reconnected the fuel pump with new fuel filter
Disconnected the fuel line from the pump to verify there is fuel coming out of the pump
Disconnected the fuel rail and cleaned fuel injectors, then reconnected and tested
VIDEO:

Poured Yamalube Ring Free Additive into the fuel tank per the instructions on the bottle
Removed the 4 plugs, poured 2 oz. of Yamalube Ring Free Additive into each of the 4 cylinders, let sit for 24+ hours, reinserted plugs, and tried starting
Ran a compression check on all 4 cylinders VIDEOS:
1.

2.

3. https://www.youtube.com/shorts/OnbhJ_ycaBA
4. https://youtube.com/shorts/I915Sm8RqBg?si=pNgBOmgOqZNrG_2e

Any ideas or suggestions?

Thank you for your help and input!

 

[99yam40]

what is the fuel rail pressure doing and compression reading on each cylinder?
no need to post videos, just give the readings.
waste of your time and ours watching
I never heard of someone dumping pure ringfree into a cylinder before, where did you get that from?

 

[QBhoy]

Hi. Can’t see the videos. But thought I’d ask about a very common issue seen on these. Quite often it’s the case where there ends up too much oil in the engine. Just because some may be confused by the way the oil should be dipped. There is an oil collection tank that has the cap and dip stick in. This will show no reading at all, until after the engine has been ran for a few minutes or so. What happens then, is that some may dip the oil without the engine having been ran at all. Then they see that there is no oil snowing on the dip stick. They add oil. This causes a very bad situation of over fill. What can happen then, is that the oil can mist up or even flow up through the top end and into the air filter and throttle body. Causing a poor running or usually even a non running situation.
I’m sure you’ve got that covered and know already…but thought I’d ask anyway.
Plug health, these things are extremely sensitive to, I’d also say.

 

[Chris1956]

I believe those models have a self check like an auto OBD-II system. You hold the button on the bottom left of the dashboard down until the code appears. Hopefully the code is listed on the internet.

Remember those WR motors have most of the components of a modern auto, like crank angle sensor, cam sensor, overheat sensors, fuel pressure sensors etc. Any of those can become disconnected or fail. Double check all connectors to make sure they are plugged in correctly.

They also seem to be sensitive to spark plug fouling, which give the appearance of non-acceleration. My neighbor has the same machine, and after fogging it, he needs to change the spark plugs to get rid of fouling. If you have not changed the spark plugs, that might be an idea.

 

[dombarb]

Thank you for your help and suggestions. Below is a brief update over the past 2 months.

- Nothing new. Still does not run.

- Thank you QBhoy. My other 2010 VX Cruiser has a cap and dip stick. This 2010 FX Cruiser HO does not have the same cap. The dip stick is located on the forward side of the engine and pulls right out (like my car), not on top and no twisting on/off. The oil level was slightly above the Full line on the dip stick. I did remove some oil so it's now at the Full line. Maybe I should remove more. The air filter did not show any signs of oil.

- Thank you Chris1956. I did not see any error codes or red lights on the dashboard. I'll check again. I did disconnect and reconnect all the connectors I saw. Most of them were electrical. I have replaced the spark plugs 3 times in the past year with new plugs from West Marine. I did not gap them.

- I called someone out to the house to look at it. He said the problem was definitely a fuel problem, but could not fix it. Not sure how, but he was able to get it running only at very high RPMs using the throttle, then it would shut off at idle. I could not reproduce it.

- I replaced the fuel rail / delivery pipe with a used pipe bought online. I also bought 4 new, non-Yamaha fuel injectors, but it did not make any difference.

- The guys that maintain and fix the WaveRunners used in the guided tours said to try the Yamalube Ring Free in each cylinder.

Thank you for your help. Hope I didn't waste anyone's time.

 

[dombarb]

Thank you QBhoy and Chris1956 for your suggestions.

In case this helps anyone, I had someone work on it and he quickly identified the problem was with the fuel pump.

I was told the original fuel pump was operating at 10 psi. He said it should be near 50 psi. Replacing the fuel pump allowed the WaveRunner to run normally again.

Previously I had removed the fuel pump, did what I could to clean & inspect the pump and the fuel tank, replaced the fuel filter, put them back in, and then started engine with the hose disconnected from the delivery pipe (fuel rail). Fuel then pumped out when I started it, so I did not think the problem was the pump, but I was wrong.

Hope this helps anyone experiencing a problem starting their WaveRunner.

Thank you.

 

[99yam40]

glad you got it fixed, and thanks for posting what the problem was.
yes rail pressure is a very important test of injected motors.

 

[QBhoy]

Thank you QBhoy and Chris1956 for your suggestions.

In case this helps anyone, I had someone work on it and he quickly identified the problem was with the fuel pump.

I was told the original fuel pump was operating at 10 psi. He said it should be near 50 psi. Replacing the fuel pump allowed the WaveRunner to run normally again.

Previously I had removed the fuel pump, did what I could to clean & inspect the pump and the fuel tank, replaced the fuel filter, put them back in, and then started engine with the hose disconnected from the delivery pipe (fuel rail). Fuel then pumped out when I started it, so I did not think the problem was the pump, but I was wrong.

Hope this helps anyone experiencing a problem starting their WaveRunner.

Thank you.

Excellent. Glad she’s sorted. Just mind and be careful with jumping things. These can be sensitive bloody things. Anyway…nice one and all the best.