wow engine failure.

[bimota]

read this this afternoon on facebook.

Friends I have some bad news. My S10 has had a catastrophic engine failure at 67.000km which led to a rapture of the oil pan/sump and massive oil leak. All this while cornering a wide turn at 120kmph !!!
I bought my S10 8 months ago used at 59.000km, had a big 60.000km maintenance performed at Yamaha Service (changed ALL fluids-oils-filters, all brake pads, new rear brake disc, new clutch plates).
While driving I heard a big rattling and breaking sound under my left foot. Looking at the mirror I saw blue smoke coming from rear and immediately applied the clutch to disengage the engine followed by a gentle braking to a complete stop while the engine stopped itself. I noticed oil gushing from under the bike and the whole rear tire, axle and assembly totally covered in oil.
After towing to Yamaha service and thereafter their inspection, it was determined that the bolts holding the rod cap of the piston arm to the crank axle were broken and the piston rod had separated from the crank axle which led to the seizure of the engine.
I am now footed with the bill of the rebuilding of the whole engine which is quite a lot (near 10.000EUR). I asked Yamaha for a new replacement engine but was told they could not supply any and all repairs had to be done by spare parts purchases and labor. Yamaha told me that they cannot extent a goodwill guarantee and has shown no leniency for fixing this problem and left me on my own to foot the entire cost.
The failing engine part is not a serviceable part at any service interval and is not included in any service recommendations. I believe that this was a manufacturing error, and the Yamaha factory should have taken steps to remedy this problem without charging any cost to me.
I will have the bike repaired and sell it soon. I am sorry to say that I am no longer interested in driving a Yamaha again, it has been a disappointing experience.

 

[Jlq1969]

I have never heard of this in any S10 forum….but since he bought it used, why not think that the previous owner did the same thing that he intends to do… “repair it and sell it soon” and that repair was not well executed…
when a new connecting rod or main bolt is tightened, it is practically impossible for it to loosen. When "the same" screw is tightened again (in a repair/disassembly), that screw is already "stretched", if it is tightened according to the recommended torque, the screw itself will no longer have the capacity to sustain that torque in the time, the screw It has already lost its initial elasticity. The washers that are used in this type of screw are usually flat….because the clamping tension is exerted by the screw when it is “new”….

 

[Squibb]

Whilst I am reluctant to jump instantly to denial mode, this story seems a tad questionable.

One has to wonder whether the bike has been abused in a previous life, or even clocked, as this type of failure is all but unheard of.

Given the likely extent of the damage I would doubt that the engine could be rebuilt economically, so a used motor from a breaker would be the more normal course. Surely the Euro 10k quoted exceeds the trade value of the bike.

 

[StefanOnHisS10]

Whilst I am reluctant to jump instantly to denial mode, this story seems a tad questionable.

One has to wonder whether the bike has been abused in a previous life, or even clocked, as this type of failure is all but unheard of.

Given the likely extent of the damage I would doubt that the engine could be rebuilt economically, so a used motor from a breaker would be the more normal course. Surely the Euro 10k quoted exceeds the trade value of the bike.

Indeed, I have seen used engines with low miles and a warranty for around €3500 here. Even much less without warranty.

@bimota did this happen with a UK bike, any more details?

 

[AusTexS10]

Indeed, I have seen used engines with low miles and a warranty for around €3500 here. Even much less without warranty.

@bimota did this happen with a UK bike, any more details?

Original post is from Turkey.

 

[Sierra1]

Wasn't there a member on here, a year or so back, that cratered his motor? IIRC, Yamaha was interested in taking possesion of the damaged motor, but didn't replace it outright. Again, IIRC, it was an extremely odd catastrophic failure, and that is why Yamaha wanted the motor. Anybody?

 

[StefanOnHisS10]

Wasn't there a member on here, a year or so back, that cratered his motor? IIRC, Yamaha was interested in taking possesion of the damaged motor, but didn't replace it outright. Again, IIRC, it was an extremely odd catastrophic failure, and that is why Yamaha wanted the motor. Anybody?

You are right, I believe a clutch plate disintegrated.

 

[Bmwdumptruck]

Blokes living in cloud cookoo land if he thinks Yamaha should get involved. 6yr old bike with that mileage, its just bad luck. He just needs to stick a second hand motor in it and take it on the chin. If he can’t cope with that he should only buy new or SH BMW from a BMW dealer. Feel sorry for him, but he’s getting wound up over something he’s got no chance with.

 

[RCinNC]

I don't think the guy on Facebook ever mentioned the year of the bike, but based on the paint job it's either a 2019 or 2020 (can't recall which year they went to the blue rims).
Am I missing the part where he said it was 6 years old?

 

[Jlq1969]

I don't think the guy on Facebook ever mentioned the year of the bike, but based on the paint job it's either a 2019 or 2020 (can't recall which year they went to the blue rims).
Am I missing the part where he said it was 6 years old?

That color combination is from 2015.

 

[Sierra1]

I don't think the guy on Facebook ever mentioned the year of the bike, but based on the paint job it's either a 2019 or 2020 (can't recall which year they went to the blue rims).
Am I missing the part where he said it was 6 years old?

Yeah, the only "6" was 60,000km. He said he's had for 8 months, and it was used when he bought it. I think it's going to be a US '19. The US '18 was a darker blue, but not cobalt, and had black rims.

That color combination is from 2015.
View attachment 91944

Location is going to impact the color schemes. UK, US, and elsewhere do not have the same colors in the same years. I found a '15 from Malaysia with those colors, but in the US, the most common '15 color was maroon. Probably came in black too.

 

[Jlq1969]

If this owner who broke the engine wanted to sue Yamaha, he would lose it. Surely Yamaha would blame him or the previous owner, and as proof it would only present the photo that the same user took, where ""ANOTHER" S10, made the same trip under the same extreme demands and it did not break….case closed and filed

 

[Jlq1969]

Anyway, I have doubts with this number/date. Seems like it was…last year?

 

[lund]

Interesting, the only time I have seen this type of failure is when an engine ran too long on its side, any brand. Yes I have seen it including with Yamaha but there is always another untold story.
The story the owner doesn't want the dealer to know, like dropping the bike and not shutting it down quick enough.
That is the unfortunate thing with fuel injection, they will run on their side, till shit happens, just give it a minute or two. LOL
To bad, no, Yamaha should not be responsible, this could happen to any others. Plus not knowing its history at 60,000km, this could be one out of thousands.

 

[WJBertrand]

I’m taking this story with a large grain of salt. All he really shows is some oil on the outside of bike the and a trail on the road. He has a “Wikipedia” image of a piston and rod assembly, no actual images of the internal parts themselves. The images posted later in the thread are from someone else. I don’t see any evidence of what the alleged failure actually was. The engine would have to have been removed and torn down to make the diagnosis he claims.

As to the engine running on its side, unless someone defeated the tip over kill switch under the passenger seat, the Ténéré will not run in a horizontal orientation, it shuts off immediately, BTDT.


Sent from my iPhone using Tapatalk Pro

 

[magic]

Interesting, the only time I have seen this type of failure is when an engine ran too long on its side, any brand. Yes I have seen it including with Yamaha but there is always another untold story.
The story the owner doesn't want the dealer to know, like dropping the bike and not shutting it down quick enough.
That is the unfortunate thing with fuel injection, they will run on their side, till shit happens, just give it a minute or two. LOL
To bad, no, Yamaha should not be responsible, this could happen to any others. Plus not knowing its history at 60,000km, this could be one out of thousands.

Maybe, but the Super Tenere is equiped with a tip over sensor, it's under the passenger seat. Yeah, it would be interesting to hear what really happened.

 

[RCinNC]

Well, you learn something new every day. I never knew they varied paint schemes by region.

 

[Checkswrecks]

I have never heard of this in any S10 forum….but since he bought it used, why not think that the previous owner did the same thing that he intends to do… “repair it and sell it soon” and that repair was not well executed…
when a new connecting rod or main bolt is tightened, it is practically impossible for it to loosen. When "the same" screw is tightened again (in a repair/disassembly), that screw is already "stretched", if it is tightened according to the recommended torque, the screw itself will no longer have the capacity to sustain that torque in the time, the screw It has already lost its initial elasticity. The washers that are used in this type of screw are usually flat….because the clamping tension is exerted by the screw when it is “new”….

I agree totally.
Guy bought a well used bike, service history and beating history totally unknown, doesn't mention if he has added oil in the more than 4,000 miles since last dealer service, and his description could easily fit for a damaged oil pan leaking oil till the engine was running on no oil. THEN he thinks Yamaha should GIVE him a new motor? Absolutely silly to think he has any kind of case and then he tries to blame it all on Yamaha. Can understand his feeling hurt, but there are SO many unknowns that this is one of those "life happens" events and NOT on Yamaha.

 

[lund]

I’m taking this story with a large grain of salt. All he really shows is some oil on the outside of bike the and a trail on the road. He has a “Wikipedia” image of a piston and rod assembly, no actual images of the internal parts themselves. The images posted later in the thread are from someone else. I don’t see any evidence of what the alleged failure actually was. The engine would have to have been removed and torn down to make the diagnosis he claims.

As to the engine running on its side, unless someone defeated the tip over kill switch under the passenger seat, the Ténéré will not run in a horizontal orientation, it shuts off immediately, BTDT.


Sent from my iPhone using Tapatalk Pro

Maybe, but the Super Tenere is equiped with a tip over sensor, it's under the passenger seat. Yeah, it would be interesting to hear what really happened.

This is good to know for the Tenere, that is not the case on all motorcycles. Though now that would be the case on higher end bikes.

 

[Sierra1]

Well, you learn something new every day. I never knew they varied paint schemes by region.

Yeah, it doesn't make sense. All of the 60th Anniversary ES schemes went "down under". All the 60ths in the US are only non-ES. The US doesn't get an immobilizer either. I would think that the more manufacturing options that there are would increase "cost per unit".