Warning, -16 late build Viper turbo breakdowns, bad rods.

[tator]

the word at the local yamaha dealer is that the yzx is not holding up. a good friend of mine brought this topic up to them and they knew a couple cases of yxz with the mpi kits throwing rods, thats at 150hp. they didn't know of any sleds, but we don't have snow and they are suspicious it will be the same. all of this is second hand info. i have no facts, or have seen anything to prove or disprove this. if i had a turboed late 16 i would not run it unless i had the cash to throw a new motor in it. yamaha is not standing behind the boosted motors, I don't think they will stand behind these weaker rods. it will only take one case to prove it won't work on sleds. hopefully we don't see it.

 

[InRBigness]

Here is my perspective. Not going to make everyone happy but too F#$kn bad. I paid 21K for this sled. If it blows up due to the MPI trail turbo and Yamaha decides not to do anything ( not really worried about that as my dealer has been fantastic and said "drive the #*$&@ out of it and we will deal with it later") then I will put in Rods, studs and make it 245+ horsepower. I know this is not a popular view here where many say: I paid and it should be perfect. That why I bought a Yamaha. Well if you kept it stock it would run forever. If it doesn't you have two choices: snivel and whine and not drive it or fix it and use it. I choose to ride as opposed to complaining and jumping on the internet and bitching about how I have been screwed over.


It amazes me every day how people buy a car/truck/SUV and are willing to accept a 30%+ loss just for being the first fool to pay for it and drive it off the lot, but when they buy a toy (quad, jet ski, sled etc) they get pissed when its not perfect.
I am not rich by any stretch but I am comfortable and one thing I learned early on is that "It's only money, you can make more". I have yet to meet the person who got into the sport to save money. Would it suck? ABSOLUTELY, however would it stop me from doing what I can to enjoy my purchase? NO

A wise friend said to me long ago about divorce: "Add it up, cut in half, cut the cheque and save some hair" His point was you are going to have to pay either way so do it and move on and you may still be attractive enough to find another pension partner.

 

[CustomApexMan]

Your going to need more than rods if it breaks and it blows through the block

 

[stingray719]

Here is my perspective. Not going to make everyone happy but too F#$kn bad. I paid 21K for this sled. If it blows up due to the MPI trail turbo and Yamaha decides not to do anything ( not really worried about that as my dealer has been fantastic and said "drive the #*$&@ out of it and we will deal with it later") then I will put in Rods, studs and make it 245+ horsepower. I know this is not a popular view here where many say: I paid and it should be perfect. That why I bought a Yamaha. Well if you kept it stock it would run forever. If it doesn't you have two choices: snivel and whine and not drive it or fix it and use it. I choose to ride as opposed to complaining and jumping on the internet and bitching about how I have been screwed over.


It amazes me every day how people buy a car/truck/SUV and are willing to accept a 30%+ loss just for being the first fool to pay for it and drive it off the lot, but when they buy a toy (quad, jet ski, sled etc) they get pissed when its not perfect.
I am not rich by any stretch but I am comfortable and one thing I learned early on is that "It's only money, you can make more". I have yet to meet the person who got into the sport to save money. Would it suck? ABSOLUTELY, however would it stop me from doing what I can to enjoy my purchase? NO

A wise friend said to me long ago about divorce: "Add it up, cut in half, cut the cheque and save some hair" His point was you are going to have to pay either way so do it and move on and you may still be attractive enough to find another pension partner.

Liked your response. What other engine in anything can you double the horsepower without modding the engine and expect it to live? Polaris guys I know hope to only blow up 2 stock engines a year. Also fascinated by claims Yamaha will not warranty dealer installed turbos, not saying it can't happen (like the guy that had diesel in his fuel tank) but that is not the Yamaha I know. Yamaha once recalled an entire SRX model year and crushed them because of bad crankshafts. And the kicker for me is it is not proven yet. I see a rod that the design would be a stronger rod, unless there is a manufacturing defect. If there is a defect the Yamaha I know will make it right, of that I am sure. That being said I have a 2014 but would not hesitate to buy a 2016 if I was going to buy another new.

 

[stingray719]

Your going to need more than rods if it breaks and it blows through the block

Maybe, maybe not. Yes it is an RX1 not a Nytro but you get my point.

 

[CustomApexMan]

That looks like a dropped valve too me

 

[Vilas]

Here is my perspective. Not going to make everyone happy but too F#$kn bad. I paid 21K for this sled. If it blows up due to the MPI trail turbo and Yamaha decides not to do anything ( not really worried about that as my dealer has been fantastic and said "drive the #*$&@ out of it and we will deal with it later") then I will put in Rods, studs and make it 245+ horsepower. I know this is not a popular view here where many say: I paid and it should be perfect. That why I bought a Yamaha. Well if you kept it stock it would run forever. If it doesn't you have two choices: snivel and whine and not drive it or fix it and use it. I choose to ride as opposed to complaining and jumping on the internet and bitching about how I have been screwed over.


It amazes me every day how people buy a car/truck/SUV and are willing to accept a 30%+ loss just for being the first fool to pay for it and drive it off the lot, but when they buy a toy (quad, jet ski, sled etc) they get pissed when its not perfect.
I am not rich by any stretch but I am comfortable and one thing I learned early on is that "It's only money, you can make more". I have yet to meet the person who got into the sport to save money. Would it suck? ABSOLUTELY, however would it stop me from doing what I can to enjoy my purchase? NO

A wise friend said to me long ago about divorce: "Add it up, cut in half, cut the cheque and save some hair" His point was you are going to have to pay either way so do it and move on and you may still be attractive enough to find another pension partner.

Good points here. Even if there is an issue with these rods, they are only blowing at over 60 horsepower above stock. That is still quite a bit of HP. I agree with stingray that the design of these rods should make them stronger when you look at the specs. My guess is maybe there were a few bad ones out there but even with rods that don't like going over 200 hp this is the best sled engine out there. Go over to the poo forums and you see people happy to get 2500 miles out of a STOCK engine. Now that is crazy. It's amazing to me that the consumer is willing to accept buying an 800cc 2 stoke knowing that they will start to feel scared about it blowing after a few thousand miles. Polaris and the rest must have some really good marketing or snowmobilers only care about performance and the rest be damned. Considering Yamaha is number 4 in sales people must value speed over longevity and reliability. Not me. I bought a 4 stroke Yamaha to have reliability, less pollution, and 4 stroke torque.

 

[cannondale27]

I agree with Stingray as far as Yamaha. If it's at approved levels Yamaha will cover it. I would be astonished if they didn't. As for rods only going on high hp. Time,Use and luck will tell but as fast as those European guys had theirs fail my bet is that safe level will eventually be at stock NA level. Hopefully it is just a small batch that are weaker. Hard part failures of this sort need to be aggressively addressed by Yamaha. Their reputation as a motor company depends on it.

 

[stingray719]

That looks like a dropped valve too me

Rod got loose and pounded valve as clearance is really close before it broke clear loose. Sounded like bad lifter noise just before it blew.

 

[phazerelit]

Just read this on Yamaha's canada site:
Note, I "highlighted" the last point...

http://www.yamaha-motor.ca/eshop/de...Id=19&subGroupId=19&categoryId=26&itemId=5676

Unleash the potential of your SRViper by bolting on an additional 45 HP, available exclusively at Yamaha dealers.

• Designed to run on premium pump gas
• Offers significant performance gains across the entire RPM range
• Lightweight
• Quick spooling
• Ultra reliable
• Designed for operation at any altitude
• Clutch Kit is required for units used at elevations of 2500 feet and under, (includes weights, outer rivet (7.0g), centre rivet (7.0g), and inner rivet (13.3g), sold separetely
• Incompatible with all 2016 SRViper models

**While installation of these kits will not "void" your snowmobile's warranty, specific failures determined by Yamaha to have resulted from installation of kit components or other modifications may not be covered by the Yamaha limited warranty or extended service coverage.

Mountain Performance, Inc. Clutch Kit:
SMA-MPILE-CK-00 (2500ft and under)

 

[Dealerjohn]

I seen this a few days ago.. All I could do was shake my head. Just when Yamaha was making some ground on the other manufacturers, they shoot themselves in the foot. Way to go Yamaha.... Main thing is I have two 2015s that are boost-proof

 

[phazerelit]

I seen this a few days ago.. All I could do was shake my head. Just when Yamaha was making some ground on the other manufacturers, they shoot themselves in the foot. Way to go Yamaha.... Main thing is I have two 2015s that are boost-proof

And I, as many, sold my -15 to go for a -16... Awaiting rods now from MCX now, then the fun begins again, with a slicht bitter taste.
You are on the spot there, they just began to gain ground on other brands and by doing this "change" they shot themselves in the leg and caused a huge scratch in their own brand. Its sad.

 

[Yamadog]

I seen this a few days ago.. All I could do was shake my head. Just when Yamaha was making some ground on the other manufacturers, they shoot themselves in the foot. Way to go Yamaha.... Main thing is I have two 2015s that are boost-proof

Ahh not proof! but close!

And to the earlier mention of blowing a motor I can tell ya it aint cheap! Throwing a rod will cost you well over $8000 to fix make it a parts donor and move on, or find a used motor for sale. Mine etched a whole between 1 & 2 cylinders ruining the block, pistons and valves - and this was without throwing a rod. It made no noise just dropped a cylinder and then stopped.

in 05 I blew an rx-1 up going down a rail grade at over 100 it just went sour on the exhaust note then locked up. Split the crank in 2 pieces. The only salvageable part was the carb rack and the starter.

 

[Studroes144]

Not trying to lose focus on the main topic in this one but wanna go back to the issues Dave posted with an mpi kit, like everyone I too was pretty dumbfounded when the post was made of a trail turbo only making 11 hp over stock, I knew the muffler was restrictive, but that restrictive?!? After being skeptical of that, fast forward to this past week, right before closing time I'm at the dealers (d&d) when a gentleman comes in to get some different weights for his cat 7000, between a few people that were in there there was some small talk that opened up to a very interesting conversation, the gentleman went on to say how he had an mpi turbo on his 7000 that he was not happy with, struggled getting it to run good, and finally ended up taking the sled to Dave where it ended up only making low 150's on their dyno, once he said that I was all ears cuz I had read and reread these posts. Not sure if the gentleman we were talking to is this specific guy but his stories lined up 100% with what Dave posted so I have no reason to doubt the low hp claims, heck, the guy told me himself standing right in front of me. No idea if this was an early build kit or a late build kit, doesn't really matter, what does matter is that there is probably a lot of guys out there that paid a lot of money for kits that are suppose to be giving them 45 extra hp when in reality they may be getting 1/4 of that. Sounds to me like Dave has it figured out what needs to be done, if you know for sure you're mpi turbo isn't making its potential I'd get in touch with him and let him help you. We'll be testing my stage 1 mpi turbo here fairly soon doing back to back runs with a new big core exhaust and the mpi quiet muffler so very excited to see the outcome!

 

[cannondale27]

I think it is on topic since Yamaha isn't talking other than that fine print advertising the turbo kit. We have a choice. Believe Dave at Hurricane and MCX who pretty much won't Turbo a 16 without changing the rods or MPI that thinks everything is just fine.