Curiosity -no compression

[Dilly]

Posted this weekend that my 2020 winder Ltx Se lost power with no codes displayed. Well took sled to dealer and sure enough there’s no compression and coolant in the middle cylinder. I’m running Td power trail 270 dalton clutching and mbrp trail exhaust. The dealer tried to tell me sled was out of warranty which I knew was wrong. My question is has anybody had any experience with dealing with Yamaha on something like this? I only ask because dealer made it sound like they may or may not cover it? I’ve only had the tune and upgrades done for 750miles now and sled has 4500 on it now give or take a 100 miles.

 

[justinator]

Posted this weekend that my 2020 winder Ltx Se lost power with no codes displayed. Well took sled to dealer and sure enough there’s no compression and coolant in the middle cylinder. I’m running Td power trail 270 dalton clutching and mbrp trail exhaust. The dealer tried to tell me sled was out of warranty which I knew was wrong. My question is has anybody had any experience with dealing with Yamaha on something like this? I only ask because dealer made it sound like they may or may not cover it? I’ve only had the tune and upgrades done for 750miles now and sled has 4500 on it now give or take a 100 miles.

Your sled may still be in warranty but yamaha likely will not want to cover this repair as the sled has been tuned.

 

[Dilly]

Tune or no tune if they don’t cover it why would anybody even think about buying there extended warranty? It’s not like it’s even close to seeing it’s full potential yet.

 

[rtx moose]

Tune or no tune if they don’t cover it why would anybody even think about buying there extended warranty? It’s not like it’s even close to seeing it’s full potential yet.

any mods to the engine to gain HP will void the warranty ,it says on the disclaimer!!

 

[justinator]

When you modify stuff you typically void warranty. Now they cant deny a suspension issue or headlight or hand warmer issue because of a tune but they can certainly deny an engine issue when that engine was operating outside its performance window designed by yamaha. Sometimes as a gesture of good faith they may choose to cover it if they find a manufacturing defect or issue on their end that caused it but typically when tuning you are voiding engine and possibly other powertrain warranty. No different then buying a brand new 475hp ford powerstroke diesel and throwing a 600hp tune in it and expecting ford to pay when you blow the transmission or damage the engine, not gonna happen. If your sled was stock tune they would 100% cover it, and they still may, but be prepared for a no answer.

 

[TPAY243]

You put 3500 miles on it with no problems, then tuned it now 750 miles later it's junk. Not sure how you think this is Yamaha's problem, there no way they will cover it under warranty. Call TD maybe they will pay to have it fixed. If you want to play you need to pay.

 

[justinator]

He likely had a headgasket on the verge of taking a dump and the extra boost pushed it over the edge. Powertrail is a fairly mild tune compared to some of the other options from TD and hurricane. Its not known to cause damage as most tunes really arent so Im assuming the failure was accelerated once the tune was added

 

[ateick]

Don't have a Winder so not sure how hard this is to do with tunes but why don't people return sled to stock before taking in for engine issues like this. Better chance of warranty repair approval no?

 

[mario750]

Posted this weekend that my 2020 winder Ltx Se lost power with no codes displayed. Well took sled to dealer and sure enough there’s no compression and coolant in the middle cylinder. I’m running Td power trail 270 dalton clutching and mbrp trail exhaust. The dealer tried to tell me sled was out of warranty which I knew was wrong. My question is has anybody had any experience with dealing with Yamaha on something like this? I only ask because dealer made it sound like they may or may not cover it? I’ve only had the tune and upgrades done for 750miles now and sled has 4500 on it now give or take a 100 miles.

Same thing happens to me on my tuned Winder under warranty, motor has no compression in middle cylinder. I’ve tried two different dealers and they couldn’t get approval for warranty work from Yamaha because sled was tuned. I end up bringing sled to Hurricane shop in Canada for engine swap and covered costs on my own.

 

[mario750]

Don't have a Winder so not sure how hard this is to do with tunes but why don't people return sled to stock before taking in for engine issues like this. Better chance of warranty repair approval no?

Yamaha will ask for ecu or ecu data . So you will have to to have two ecu’s and do swap out before you go to dealers.

 

[mario750]

He likely had a headgasket on the verge of taking a dump and the extra boost pushed it over the edge. Powertrail is a fairly mild tune compared to some of the other options from TD and hurricane. Its not known to cause damage as most tunes really arent so Im assuming the failure was accelerated once the tune was added

I’m my case it was tune related, to much timing and not enough octanes , lead to detonation in middle cylinder.

 

[ateick]

Yamaha will ask for ecu or ecu data . So you will have to to have two ecu’s and do swap out before you go to dealers.

Understand Yamaha is supposed to review that but I would think you'd have a much better chance (admittedly slim) if you happen to have a "friendly" dealer if it came in stock. It somehow worked for me. Covid delays/backlogs helped as well.

 

[TPAY243]

If it somehow worked for you it was the dealer doing you a favor. Most of the time Yamaha wants to look at the parts that failed. They are the ones that designed and build this motor, They are not stupid and know when something is not right. I don't know how you think you can tune this motor and when it fails blame YAMAHA. These tunes are pretty reliable now days so I'm sure there are other things going on here such as bad gas or faulty bar sensor. I doubt it was a bad head gasket with that many miles on it, before that it worked just fine on stock boost.

 

[mario750]

Well he can try another dealers, but I don’t think Yamaha would cover it, my riding buddy just recently went through same problem with his tuned Yama jet ski , same outcome they would not cover warranty repairs. That’s how he got his ski back from dealers)

 

[Turboflash]

I’m my case it was tune related, to much timing and not enough octanes , lead to detonation in middle cylinder.

We all know all the tuners have well-developed knock/detonation systems (more sensitive than stock). My question is why doesn't knock protection system work when there is detonation? Even if there was too much timing and octane too low, why doesn't knock protection work? Isn't that the whole point and purpose of that system?
I've read about this type scenario several times in the last month here on TY and also on other forum sites. When there's detonation, why doesn't the protection work?