Yamaha 2008 50TLR Vibration

[SKYCRANE]

Super bad vibration on 2008 Yamaha 50 TLR while in troll. Acts like it wants to leave the boat. Been that way from the day I bought the boat(NEW). Can't get yamaha warranty dept. to help and the same for the dealership that I bought the boat from nor from other dealerships that sell Yamaha products. I have talked with others that have the same motor and was stated to me that they DO NOT have a vibe like that from there motor.
Any help would be great.....

 

[JustJason]

Re: Yamaha 2008 50TLR Vibration

You can't get the dealership to help you? What EXACTLY are they telling you after they look at it?

Rodbolt will know better than me but on some of the yamaha engines they cut cylinders under a certain rpm. There is a little bit of vibration because of the firing imbalance but it's not that bad.

 

[rodbolt]

Re: Yamaha 2008 50TLR Vibration

is this a 50TLR or an F50tlr?
either way it should not shake much and the F not at all.
Yamaha cant control the quality of the dealerships franchise. only the dealership.
use the dealer locator function on the Yamaha web site and find a dealership with at least 1 master tech.
talk to that tech.
this is the last year that reccomendation may work.
Ill know more next month.

 

[robert graham]

Re: Yamaha 2008 50TLR Vibration

It vibrates at trolling speeds, but what RPM does it stop vibrating and is it smooth at all other RPM's? That's a curious problem and I'll be very interested to hear what is causing it. Good Luck!

 

[99yam40]

Re: Yamaha 2008 50TLR Vibration

Need a lot more info for help.
Tell us what all has been done and what all is happening.
Your post is like telling a doctor that you feel sick, but do not give any other info or symptoms and expect him to magically cure you.

 

[SKYCRANE]

Re: Yamaha 2008 50TLR Vibration

It is a 50TLR not an F50TLR. At least that is what the data plate on the motor has printed on it. I have not had it looked at as of yet due to the cost the dealerships want just to take the cover off the motor, little steep at $250.00 just to run the motor in a tank and another charge of 135.00 to hook it up to a computer. I did ask if I had a Mercury and not a Yamaha how does the warranty work, dealership says they would cover the look at and diagnostics. Guess I should have got a Mercury.

The vibe in troll is in the 750 to 950 rpm range. It smooths out at 1150 to 1200 rpm. The vibe is so bad that it jerks the back of the boat and feeds back through the damped steering. I have talked to several dealerships in my area and I get the same answer,"Don't care that the engine is under full warranty, you have to pay to have it looked at and any repairs made".

So much for having a warranty. Even when I called Yamaha Warranty Service the rude dude on the phone stated "I would have to pay out of pocket to have the motor looked at and repaired and that it would be a slim chance that it would be a warranty problem anyway", guess he has telepathy with motors to tell over the phone if it is a warranty problem or not. I asked as to why I even have a warranty if Yamaha dosen't cover anything. Get this, the response was "You would have to prove to us that it was a workmanship problem for us to cover it and Yamaha does not make mistakes with our outboards so you must have done something to the motor to make it run the way it does, have a good day"....click. OH, and don't ask to speek to a supervisor, you get the "I don't have to let you speek to a supervisor because he can't help you either".

So I didn't break into the dealership before I bought the boat, and I sure didn't do anything to the motor after I bought the boat. So here I am stuck with junk as my Dad would say. Makes for a not so great day on the water.

 

[madgadget]

Re: Yamaha 2008 50TLR Vibration

Can you get a video of this? Are you able to do a compression test yourself?

 

[Don S]

Re: Yamaha 2008 50TLR Vibration

Post the Primary ID number of your motor, and lets see if we can't track down what the problem is.
When you first started using the motor and noticed the vibration, did you take it back to the dealer then, and explain the problem? Do you have any records of what happened?

 

[SKYCRANE]

Re: Yamaha 2008 50TLR Vibration

Yes I can do a compression check. I need to check my dvd manual to see if it is in it.
When I took the boat in for its 10 hour break in service, I informed the dealership at that time and the response was, Oh, its ok the motor is supposed to vibrate like that, no problem.
I will attempt to get a pic up of the data plate. Thanks for the responses guys, any and all help is appreciated. Just wish I could get help from the warranty program, you figure that I could since I paid for it.

 

[JustJason]

Re: Yamaha 2008 50TLR Vibration

I don't work at a Yamaha dealership but to Don and Rodbolt, Is it commonplace for customers with Yamaha engines under warranty to be charged a diagnostic up front? And to be re-imbursed if under warranty and not not re-imbursed if it is not a warranteeable claim?
Doesn't sound right to me. Something tells me there's more to this story.

 

[99yam40]

Re: Yamaha 2008 50TLR Vibration

Kind of sounds like it has a lean sneeze if it jerking that hard. A miss is not normally that violent. Yamaha will not do anything under warranty for bad fuel or problems associated to it plugging or fouling the system.
Maybe that is what is being relayed

 

[SKYCRANE]

Re: Yamaha 2008 50TLR Vibration

Fuel is always fresh with the Marine Sta-bil added. But like I said it has done this from day one of purchase. I did remove the fuel the dealership had in it a replaced with new fuel. Even after I had the 10 hour break-in service completed at the dealership it still did the same thing.
Don't know has me puzzled.

 

[99yam40]

Re: Yamaha 2008 50TLR Vibration

Could you take a movie with a digital camera, of the motor while it is doing this shaking you are talking about and post that somehow where we could see it?

 

[robert graham]

Re: Yamaha 2008 50TLR Vibration

It makes me think of an ignition timing problem. Does your motor have the "emergency operation" mode which requires unplugging that wire next to the electronic control module? I believe that unplugging that wire(per owner's manual) may bypass the electronic control module and try to see if the problem is there. The timing changes with engine RPM's and if it was not changing then you could get the vibration at trolling speeds and the smooth out over 1200RPM's. Electricals is not my strong suit, so it's just an idea to think about. Good Luck!

 

[rodbolt]

Re: Yamaha 2008 50TLR Vibration

did your dealership say anything about computer diagnostics on this motor ?

 

[SKYCRANE]

Re: Yamaha 2008 50TLR Vibration

Rodbolt, when I took the boat in for the 10 hour break in service and advised the tech of the problem, he stated that all 50TLR motors vibe like that and it would be ok. I did ask for it to be hooked up for computer diagnostics but he said no need too the vibe is normal.
DonS I took pics of the data plate but they were too big to upload so here is what is on the plate.
YAMAHA 50TLR
6H5K L 1025221
H
Manufactured: 02/08

 

[rodbolt]

Re: Yamaha 2008 50TLR Vibration

your motor may need attention.
the 50HP 2 stroke 3 cyl motor is very smooth or broke.
sometimes I have to remove the plugs covering the idle mixture screw for tweaking also double check the linkage adjustments.
if it still shaking call the yamaha consumer number and see if there is a dealership with a master tech near you.
or at least one that has certs for fuel and electrical.
no computer diagnostics avalible for that engine.
its basic carbs and CDI ign system.

 

[robert graham]

Re: Yamaha 2008 50TLR Vibration

Rodbolt,that makes a lot of sense, so if one carb had a plugged or misadjusted idle jet/screw then it would shake a lot at idle and then smooth out just above idle. I hope that's it because it should be a relatively easy and cheap repair. These motors don't really shake and vibrate at idle if everything else is as it should be. It kinda burns me up to hear that a "technician" told you that vibration was "normal". Guess they use the term "technician" rather loosely.
Good Luck!

 

[Silvertip]

Re: Yamaha 2008 50TLR Vibration

Sounds like an issue with one of the carbs is upsetting the idle quality and the motor is simply missing on one cylinder. One you get up in the rpm band a bit the carb gets into the high speed jets and all becomes normal.

 

[SKYCRANE]

Re: Yamaha 2008 50TLR Vibration

Thanks for the info guys. I will break out the cd manual and see what I can do with the carbs. By the way how easy will it be to get the covers off the idle adj. screws?
Will let you know what the outcome is after I tweek the carbs, guess I will start with the top carb and work my way down.
Thanks again for the help....and a Merry Christmas too All...