alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 19, 2020 12:53:03 GMT -7
Hey Guys, The engine on my 2019 MT-10 blew up yesterday and I’m still trying to understand how that happened! Bike is well maintained no leakage or anything I suddenly started smelling burnt oil and saw smoke coming out of the bike yesterday and before I could come to a full stop the engine shut off just like that! It sounded like a piston rod was broken and I found a small crack in the engine case that’s where the oil was coming out! I had installed an M4 exhaust (De-cat pipe + slip-on), block-off plates, BMC Air filter and flashed the ecu recently so not sure if that has anything to do with it. Any pointers?
|
|
Sponsored Ad
|
Deleted
Posts: 0
Registered: Apr 24, 2024 20:31:17 GMT -7
|
Post by Deleted on Apr 19, 2020 17:14:16 GMT -7
Bad tune I'd say. May have ran too lean.
Who tuned it?
|
|
Deleted
Posts: 0
Registered: Apr 24, 2024 20:31:17 GMT -7
|
Post by Deleted on Apr 19, 2020 17:52:49 GMT -7
Yep; a bad tune is my guess too. Too lean, and pistons expand more than the cylinders, scoring them. And if bad enough, eventually seizing up. How many miles? Sounds like you could be under warranty, but it's probably not going to fly with Yamaha. Hopefully your tuner will step up to the plate, but I wouldn't count on that either. That's why I don't mess with my vehicles, but I seem to be in the minority . Sorry to hear those bad news, but kudos for saying what really happened . Good luck, brother.
|
|
alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 20, 2020 11:20:11 GMT -7
Well I called the guy who flashed the ecu and he’s claiming there is no way what he’s done could’ve caused the engine to blow up like that taking it back to the dealership tomorrow to see if we could fix it under warranty but any other possibility besides the flash reason where this could happen?
|
|
3lseeker
Junior Member
Posts: 71
Likes: 31
Registered: Dec 9, 2018 10:07:56 GMT -7
|
Post by 3lseeker on Apr 20, 2020 17:41:57 GMT -7
It does sound like a lean condition which could have been a leak around the block off plates, air filter, or plug/cap for the air box.
|
|
3lseeker
Junior Member
Posts: 71
Likes: 31
Registered: Dec 9, 2018 10:07:56 GMT -7
|
Post by 3lseeker on Apr 20, 2020 17:46:00 GMT -7
It does sound like a lean condition which could have been a leak around the block off plates, air filter, or plug/cap for the air box. Also, you mentioned the BMC Air Filter which the tuner would have to add more fuel for the increased air flow over stock filter.
|
|
jacoby
Junior Member
Posts: 78
Likes: 24
Registered: Oct 19, 2019 8:21:47 GMT -7
|
Post by jacoby on Apr 20, 2020 19:47:47 GMT -7
No way Yamaha is gonna cover this. As soon as the dealer sees the decat it’s game over. They’ll go over that thing with a fine tooth comb before they fork over a new motor. Good luck.
|
|
alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 20, 2020 19:51:06 GMT -7
I installed everything myself and made sure plates, airbox plug and air filter were all sealed tight so I’d be surprised if that turned out to be the case. All mods including air filter were done before the flash and I told the tuner in details what was changed.
When the engine runs lean shouldn’t there be an indication before the engine blows up? Or maybe a fault/check engine light? I never had to deal with such thing before so I don’t know.
|
|
rj
New Member
Posts: 47
Likes: 2
Registered: Mar 7, 2019 20:07:34 GMT -7
|
Post by rj on Apr 20, 2020 20:03:58 GMT -7
If it has a knock sensor maybe, but I'm not sure if the CP4 is equipped with one.
Sounds like it probably got a heavy dose of detonation?
|
|
3lseeker
Junior Member
Posts: 71
Likes: 31
Registered: Dec 9, 2018 10:07:56 GMT -7
|
Post by 3lseeker on Apr 20, 2020 20:54:26 GMT -7
I installed everything myself and made sure plates, airbox plug and air filter were all sealed tight so I’d be surprised if that turned out to be the case. All mods including air filter were done before the flash and I told the tuner in details what was changed. When the engine runs lean shouldn’t there be an indication before the engine blows up? Or maybe a fault/check engine light? I never had to deal with such thing before so I don’t know. I would think you would run hot, but I'm not sure with liquid cooled engines. Best case is after teardown they find catastrophic failure with component such as rod or crank. If this is the case, I would hope Yamaha would cover the engine regardless of mods.
|
|
|
Post by rracerfz10 on Apr 21, 2020 20:40:41 GMT -7
Who tuned it?
|
|
mrcdharwood
Full Member
Posts: 167
Likes: 93
Registered: Nov 4, 2017 1:39:49 GMT -7
|
Post by mrcdharwood on Apr 22, 2020 1:24:32 GMT -7
Sometimes they just take a shit. You're not the first one but I know that won't make you feel better.
A tune remember just alters the fuel map and turns off all the environmental stuff. None of that is going to make the engine fail, if anything it actually improves it's life by making it run cooler. That's because the bikes run really lean out the factory so in turn corrects the fuelling increasing the AF ratio inturn making it burn cooler.
Leave it with Yamaha and maybe keep quiet about the ECU flash.
Keep us posted though.
|
|
mistico
New Member
Posts: 38
Likes: 12
Registered: Feb 10, 2020 16:39:35 GMT -7
|
Post by mistico on Apr 22, 2020 5:04:29 GMT -7
I agree. Take it to Yamaha and don't mention the tune. I doubt the tune caused this unless it was waaay off which would have made the bike run poorly.
|
|
|
Post by rracerfz10 on Apr 22, 2020 11:22:24 GMT -7
I agree. Take it to Yamaha and don't mention the tune. I doubt the tune caused this unless it was waaay off which would have made the bike run poorly. I agree with this. If the ignition was too advanced and the fueling too lean that would’ve been very noticeable from the start. Did you have a k&n oil filter. I’ve heard some of them from a year or so ago had some problems that could potentially lead to engine damage.
|
|
alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 22, 2020 13:02:48 GMT -7
If it has a knock sensor maybe, but I'm not sure if the CP4 is equipped with one. Sounds like it probably got a heavy dose of detonation? Not sure yet I’ll know better in few days
|
|
alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 22, 2020 13:04:54 GMT -7
Sometimes they just take a shit. You're not the first one but I know that won't make you feel better. A tune remember just alters the fuel map and turns off all the environmental stuff. None of that is going to make the engine fail, if anything it actually improves it's life by making it run cooler. That's because the bikes run really lean out the factory so in turn corrects the fuelling increasing the AF ratio inturn making it burn cooler. Leave it with Yamaha and maybe keep quiet about the ECU flash. Keep us posted though. True. The bike was running better after the tune I guess it was just a coincident. Will keep you posted
|
|
alomari386
New Member
Posts: 8
Likes: 1
Registered: Jan 18, 2020 9:10:30 GMT -7
|
Post by alomari386 on Apr 22, 2020 13:07:32 GMT -7
I agree. Take it to Yamaha and don't mention the tune. I doubt the tune caused this unless it was waaay off which would have made the bike run poorly. I agree with this. If the ignition was too advanced and the fueling too lean that would’ve been very noticeable from the start. Did you have a k&n oil filter. I’ve heard some of them from a year or so ago had some problems that could potentially lead to engine damage. Makes sense! No, oil and filter are from yamaha.
|
|
dashiznit1
Junior Member
Posts: 76
Likes: 28
Registered: Oct 1, 2019 10:29:19 GMT -7
|
Post by dashiznit1 on Apr 22, 2020 15:01:15 GMT -7
Hey Guys, The engine on my 2019 MT-10 blew up yesterday and I’m still trying to understand how that happened! Bike is well maintained no leakage or anything I suddenly started smelling burnt oil and saw smoke coming out of the bike yesterday and before I could come to a full stop the engine shut off just like that! It sounded like a piston rod was broken and I found a small crack in the engine case that’s where the oil was coming out! I had installed an M4 exhaust (De-cat pipe + slip-on), block-off plates, BMC Air filter and flashed the ecu recently so not sure if that has anything to do with it. Any pointers? Not good, the number of people with the same story as you is steadily going up and they usually don't get help from Yamaha regardless of mods or warranty. I wish you the best but I think you can expect the worst from corporate. It's a crying shame Yamaha doesn't have this figured out by now and they're screwing their warrantied customers that paid good money for their bikes. They've been making the cp4 for over a decade now and they've had tons of reliability issues compared to other brands. The only less reliable Japanese 4 engine I know of is the 2008-2012 CBR1000rr and those bikes are worth nothing now for that reason. Makes you wonder how much used FZ/MT10s are going to be worth in 5-10 years.
|
|
h19hsp33d
New Member
Posts: 16
Likes: 4
Registered: Dec 2, 2016 14:10:47 GMT -7
|
Post by h19hsp33d on Jul 19, 2020 1:58:29 GMT -7
Any update?
I'd seriously consider re-flashing to stock before dropping off at the stealership. Sounds like you may have shipped your ECU for the flash though. Sorry for your loss.
|
|
noodlechef
New Member
Posts: 8
Likes: 3
Registered: Apr 12, 2020 9:59:06 GMT -7
|
Post by noodlechef on Jul 19, 2020 10:21:43 GMT -7
Sounds like a lean misfire condition or your ECU flash changed the rev limit and you done blowed it up. no way yamaha is going to stand behind this one
|
|