• We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.

Nytro engine issue. Did I blow it up?

Csellors said:
My motor blew up after a lake run at approx 85-8900 rpm's. It threw a rod and damaged all the cases. No warning lights, after i started to decellerate it just stalled and you could tell immediately that something was wrong. Pretty embarrasing being towed by a doo 20 miles. The motor is junk now. No warranty and i have been to Yamaha and they will not cover it. My dealer is great by the way, they have really fought tooth and nail with Yamaha, but no go. So much for Yamaha quality. I was quoted $6800 for a new motor which is absolutely ridiculous. I have been looking in the U.S for a wrecked Nytro with a good motor. I bought a four stroke so i wouldn't have to deal with motor issues, funny thing is, i never had any motor issues with my doo's. Good job with this one Yamaha.

Did you call the U.S dealer?
 

Which US dealer do I call. I didn't buy the sled new, I bought it used from a private sale in the US, not from a US dealer. There's nothing sticking out the bottom of the motor. If you look at the picture you can see the hole and bottom portion of the connecting rod poking out of the engine. You can also see the rod bolt sitting in my belly pan. When the sled blew up I was probably going 20-25 miles per hour. Not fast at all. I might just stick with a 2 stroke. If a 2 stroke breaks it's much easier to fix and I don't think the 4 strokes are so amazing either. I blew the motor in my Yamaha YZ450F last year. That one wasn't so bad as it only spun a rod bearing so I just swapped over a crank and away I went. How many miles on the motor just over 800. There's no way I'm paying $2500 US for a used motor for this thing. Ridiculous that a 1 yr old sled with 800 miles blows up like that. Especially when Yamaha wants like $15,000 for a sled here in Canada.
 
Dude to blow up two 4 strokes, you are doing something very wrong or you are NOT doing the right things... You are pretty much screwed since you bought it privately. If would have been registered to you in the U.S, I truly believe they would have covered it. To them now it's just a used sled with no maintenance info on it and an unknown owner.... The other last thing would be to call the owner before you and let him call the dealer.....
 
I know it's easy to say you're doing the wrong things or not doing the right things, but sometimes things just break. It's not like either of the sleds were run without oil, actually both sleds had clean new oil in them. The YFZ450 spun a rod bearing, these things are known for doing that. Go look on ebay in the summer you can find a whole bunch of spun rod bearing cranks for rebuild. It's called unlucky and poor design by yamaha. The atv still started but was loud and you could hear the bad bearing. As for the sled, well you can see as well as I can that something wasn't right with that rod. Usually if a bearing goes it will either spin around weld itself up and seize the motor or the rod cap or bolt snaps off and gets twisted into a pretzel. If you look at my picture you can see the rod bolt looks perfectly fine, like it unscrewed itself. This could have happened to anyone, it just happened to happen to me.

P.S. I got this email from Yamaha Canada

If the unit was imported from the United States, we can unfortunately not investigate into the matter, the warranty is not transferable from country to country. You can most certainly inquire with Yamaha USA, the phone number for their customer service is 714-761-7300.

Maybe I try Yamaha of US now.
 
To expensive. It's already bid up to almost $3000 us + state tax = 3150 US, then I have to convert to Canadian =3750 +202 RIV fee to import a sled into Canada Plus GST and PST of 13% = $4500. Not worth it and that's assuming it sells for no more than the current bid, but thanks for providing that option.
 
Have you considered asking the Easter Bunny for a new motor? It might be the only option left.
 
cawcislo said:
I know it's easy to say you're doing the wrong things or not doing the right things, but sometimes things just break. It's not like either of the sleds were run without oil, actually both sleds had clean new oil in them. The YFZ450 spun a rod bearing, these things are known for doing that. Go look on ebay in the summer you can find a whole bunch of spun rod bearing cranks for rebuild. It's called unlucky and poor design by yamaha. The atv still started but was loud and you could hear the bad bearing. As for the sled, well you can see as well as I can that something wasn't right with that rod. Usually if a bearing goes it will either spin around weld itself up and seize the motor or the rod cap or bolt snaps off and gets twisted into a pretzel. If you look at my picture you can see the rod bolt looks perfectly fine, like it unscrewed itself. This could have happened to anyone, it just happened to happen to me.

P.S. I got this email from Yamaha Canada

If the unit was imported from the United States, we can unfortunately not investigate into the matter, the warranty is not transferable from country to country. You can most certainly inquire with Yamaha USA, the phone number for their customer service is 714-761-7300.

Maybe I try Yamaha of US now.


When you bought the sled in the U.S., did it still have warranty? If so, then did you have it switched into your name? If so, I still believe they will cover it in the U.S. If not, it might be harder. Either way you are giing to have to get it to a U.S. dealer. Call the guy where you bought it from and find out what dealer it came from. That is who you have to deal with. Do this before you call Customer service or at least contact the dealer before you call Customer Service... Yamaha takes big pride in their motors. They might at least split the cost...
 
Go with what sledfreak is saying. Call up the guy you bought it from and ask him to call the dealer. It won't cost him anything to ask for you. I've had rod bolts go on 2 strokes Poo's with 300 miles. Broke the motor in two after it started hammering.

It would be pretty sad if Yamaha wouldn't guarrentee a two year old motor with 800 miles on it. They can take it apart and see what caused the failure. If it was thier problem then a new motor should be on order with free installation. It shouldn't matter if it is not under warranty still, with only 800 miles. If they would have gotten the front end right the first time I bet the machine would have more miles on it.

I hope Yamaha does the right thing here for you!
 
A friend has a 08 Summit w/ 2500KM on it when it chucked a main bearing which then punched a hole on the block. Ski-doo says that the 08's had bearing problems so he got a new engine under warrenty.

I hope Yamaha does the same for you.
 
Since this is a Nytro engine failure thread, and I had my motor go down again today :o|
I thought I would share (vent) my Nytro motor story.
Back in mid Feb we went on sledding trip to Idaho for a few days of prime Idaho powder riding!
On the 3rd day we were heading back through a wide open area. Since my XTX just clicked over 500 miles that day, and I had pretty much taking it easy on the motor while it broke in. I decided to open her and see what it would do. I had it to the bar for a couple miles, and got it up to about 95mph or so and figured that was enough. Backed it down to about 65-70mph, probably wasn't 2 minutes after my WOT run, the sled shut down. Thinking I overheated it, I fired it back up to pull over to cool it down. It would shut down a few seconds after I re-started it, WTF its never done that before. Then I looked down, motor oil all over the right side of the sled :o|
So we start pulling panels off the see where the oil is leaking from, there in the belly pan sits the oil drain plug. :o|
We tow it back to the truck, head into town to buy some oil. I put 3 quarts of oil into it, fire it up. Hey it sounds like the motor might be ok! I tell my friends that I'll be able to ride tomorrow!
Next day, we head out and I get about 9 miles out and I'm starting to hear the motor knock under light accel. Not wanting to hurt the motor any more that it all ready is, I shut it down and we tow it back.
Now keep in mind the first oil change had NOT been done yet. The sled only had 300 miles on it when we left for Idaho, it was not due yet. We usaully put on 50-60 miles a day of mountain riding. So the plan was to do the first oil change when I got back as it would have just clicked over 500 miles.
I call the dealer back home from Idaho, to schedule the sled. They cant get me in for 2 weeks, I'm not happy about that, but I also understand that they are busy.
I take it in and they tear it down, it has two spun rod bearings, oil pump is shot, crankshaft throws are blue from the spun bearings. I look the block over with the tech, and it looks ok. I tell them I would really perfer a new motor, since there is a lot of metal in the bottom of the motor. He tells me Yamaha will only ok repairing the motor instead of replacing it. :o|
By the time all the parts show up, it takes the dealer 1 month to fix the sled :o| :o|
I pick it up, and we go riding today. I'm taking it easy on the motor because it basiclly has a whole new bottom end. When my buddy on his turbo Phazer spears his track. It tears out a section of outer belt approx 1' long on the LH outer belt and breaks 4 gourser (spelling) bars. But it is still moveable under it's own power. So we head back, my buddy can only go about 10mph but at least its moving under its own power. On the way back I notice my XTX is starting to run poor, like it's dropping a cylinder. About the same time it would let out a weird valve train type rattle. Since it's only the two of us we both are taking it easy just trying to make it back to the truck. My sled is rattling more now, and loosing power. This cant be good, but my buddy with the busted track is in no condition to tow me out. So I press on, by now the motor is banging and rattling, and I'm thinking just get me to the truck. About 100 yards from the truck, I left off a little and she dies. I hit the starter and the motor has clunking/banging sound and has un-even compression. Pretty sure it sucked a valve and broke a piston. :o|
So we tow it that 100 yards, busted track and all.
The sled made a whole fricken 17 miles before the motor let go, again. :o| :o|
The sled has 560 miles on it and will have had the motor out twice :o| :o|

The XTX is my 5th Yamaha sled, first four stroke, and quite possibly my last. I have had Yamaha sleds since 1992. Four of which I bought brand new. Only engine failure out of all those sleds, was a ring pin failure on the 97 XTC 600. I stuck with Yamaha because I keep my sled for at least 5 years and I need them to be reliable. But this XTX is not off to very good start. I cant believe the but luck I'm having with this thing. :o| :o|
The sled was down 6 weeks before, had to be towed in the last 3 rides, who knows how long its down for now. :o| :o| :o| :o| :o|
BTW cawcislo, hope a US dealer gets that motor taken care of for you. I dont see why they shouldn't.
 
Same thing happened to me but I put a hole in the block so they sent me a whole new motor, Fuel Injection and all. It was only down for 7 days and when I got it back it was perfect. Sorry about your luck mntviper and cawcislo. Let us know how it works out.
 


Back
Top