YZ250F headaches

Truckdriver
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Truckdriver
Edited Date/Time 12/6/2014 5:18am
I searched around to see if anyone had heard if Yamaha is going to be standing behind the motor cost's when your water pump lets go? Damn, bike let go at about 20hours, and 5 hours later it did it again. This time it spit parts all over and took out the cylinder too. Dang expensive repair. Overheats the hell out of the engine, and I have no idea how long the rest of the motor can take it. So again, has anyone one heard if Yamaha is going to man up and pay the bill?
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Grizz
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Grizz 11/28/2014 5:30pm
11/28/2014 5:30pm
Did you replace it with the same model water pump?
Truckdriver
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Truckdriver 11/28/2014 5:34pm
11/28/2014 5:34pm
Replaced with what the dealer had. Which was supposed to be an improved part.
I now see they have a new updated part for it.
49weasel
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49weasel 11/28/2014 5:38pm
11/28/2014 5:38pm Edited Date/Time 11/28/2014 5:40pm
How old is the bike ? Did you actually call Yamaha?
Yamaha is the only company that does have a 30 day warranty.
I'm a Yamaha guy but they screwed me out of $800 contingency this year so my next bike will probably be something else.
nytsmaC
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nytsmaC 11/28/2014 5:41pm
11/28/2014 5:41pm
If they leave you high and dry, I hope that they don't expect you to ever buy another Yamaha product.

Please let us know how you make out.

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malachi177
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malachi177 11/28/2014 5:44pm
11/28/2014 5:44pm
Truckdriver wrote:
Replaced with what the dealer had. Which was supposed to be an improved part.
I now see they have a new updated part for it.
What year bike truckdriver??
MMCDan
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MMCDan 11/28/2014 10:42pm
11/28/2014 10:42pm
Yamaha won't do anything for you. My 2014 250F ate the shift mechanism at 40 hours and corn-cobbed my motor. $2500 in repairs and Yamaha would not return my calls even though this is a fleet issue and they have a re-designed replacement part.

I was surprised as several years ago they stepped-up on a valve issue and repaired my bike under recall. No such luck this time.
SwapperMX
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SwapperMX 11/29/2014 2:46am
11/29/2014 2:46am
malachi177 wrote:
What year bike truckdriver??
Pretty sure he is referring to the issues the 2014 Yam 250F's have been having !!
smoothies862 11/29/2014 5:43am
11/29/2014 5:43am
so they just gave you the 14 part again,not the 15'? a lot of people put the 15' parts in their 14 and seemed to solve the problem
.
yak651
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yak651 11/29/2014 5:49am
11/29/2014 5:49am
49weasel wrote:
How old is the bike ? Did you actually call Yamaha? Yamaha is the only company that does have a 30 day warranty. I'm a Yamaha...
How old is the bike ? Did you actually call Yamaha?
Yamaha is the only company that does have a 30 day warranty.
I'm a Yamaha guy but they screwed me out of $800 contingency this year so my next bike will probably be something else.
Ktm offers 30 day warranty, they also stand behind many issues after the 30 days
Berm
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Berm 11/29/2014 6:52am
11/29/2014 6:52am
yamaha does stand behind their products.

I bought a gyt-r piston from yamaha dealer, installed it and blew up my motor in 8 hours. Took it to the dealer who said the circlips were in wrong (they weren't but we couldn't be sure). Bought another gyt-r piston and had the dealer install it. Blew up in 8 hours again (hour meter, almost to the exact hour). Took it back to the dealer and they rebuilt it again for free (another gyt-r piston, because yamaha said that wasn't the problem). Blew up in 7 hours. Dealer talked to yamaha, they refunded all of my rebuild money and sent me a brand new in crate motor. Gyt-r pistons were discontinued for about a year after that.

This was the first motor I had ever blown, and the dealer is aware of how well I maintain things.
mgifracing 11/29/2014 7:06am
11/29/2014 7:06am
Truckdriver: Depending on your Yamaha dealer, Go to the service department and have them run your vin#. That will pop up any issues within a number range. I have had a couple of customers with the water pump problem and Yamaha sent the parts within 3 days and paid the labor on all but one. I'm at a Yamaha dealership if I can help just shoot me a message.
jeff.cohen.923 11/29/2014 7:58am
11/29/2014 7:58am
mgifracing just wondering if you have seen any issues with the 2011 yz250fs not being able to hold coolant. it literally blew my Chinese radiator up and now I got the oem ones on there and it just pisses out of the overflow when ever you give it gas. my only thoughts is it has to be a bad headgasket. the top end has about 5 hrs on it and it didn't do it until about the third hour, so I am fairly confident its put together right. Not trying to hijack this thread but I saw it and had to ask, its been bothering me a lot and before I tear down the motor I wondered if there is something know about this problem
mgifracing 11/29/2014 8:05am
11/29/2014 8:05am
jeff.cohen.923 wrote:
mgifracing just wondering if you have seen any issues with the 2011 yz250fs not being able to hold coolant. it literally blew my Chinese radiator up...
mgifracing just wondering if you have seen any issues with the 2011 yz250fs not being able to hold coolant. it literally blew my Chinese radiator up and now I got the oem ones on there and it just pisses out of the overflow when ever you give it gas. my only thoughts is it has to be a bad headgasket. the top end has about 5 hrs on it and it didn't do it until about the third hour, so I am fairly confident its put together right. Not trying to hijack this thread but I saw it and had to ask, its been bothering me a lot and before I tear down the motor I wondered if there is something know about this problem
Before you put it back together did you make sure the surface of the head wasn't warped. My 08 had that problem and my head mounting surface had a bit of a blemish and a got that smoothed out and a new head gasket seemed to cure it. Normally don't have many issues with the Yammies(especially pre 14), We get mostly destroyed Hondas here.
slipdog
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slipdog 11/29/2014 8:15am
11/29/2014 8:15am
I have a hypothesis, the Chinese radiator blew itself up and in the process overheated the motor and warped the head. Chinese parts on a Japanese bike rarely have a positive outcome.
jeff.cohen.923 11/29/2014 8:30am
11/29/2014 8:30am
slipdog you are probably right which I am afraid of. I had bought the bike with really bent radiators so I figured hey how bad can they be lol. Well a warped head and two more oem radiators later. Live and learn I guess. As for when I have the head milled if it is warped, how much can be taken off before you run into clearance issuses. I believe the piston is 13.5 to 1.
Truckdriver
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Truckdriver 11/29/2014 8:34am
11/29/2014 8:34am
Berm wrote:
yamaha does stand behind their products. I bought a gyt-r piston from yamaha dealer, installed it and blew up my motor in 8 hours. Took it...
yamaha does stand behind their products.

I bought a gyt-r piston from yamaha dealer, installed it and blew up my motor in 8 hours. Took it to the dealer who said the circlips were in wrong (they weren't but we couldn't be sure). Bought another gyt-r piston and had the dealer install it. Blew up in 8 hours again (hour meter, almost to the exact hour). Took it back to the dealer and they rebuilt it again for free (another gyt-r piston, because yamaha said that wasn't the problem). Blew up in 7 hours. Dealer talked to yamaha, they refunded all of my rebuild money and sent me a brand new in crate motor. Gyt-r pistons were discontinued for about a year after that.

This was the first motor I had ever blown, and the dealer is aware of how well I maintain things.
WOW! That's one heck of a dealer!! You should have said their name, they deserve extra credit. And how did they approach Yamaha about this??
I'm kind of bummed for my friends here, they seem to have gotten quite a run around on this deal. I have been on Yamaha's since October of 2000. I have been amazed at how long they run with out any issues. But this water pump problem is very weird. And I believe the first explosion of this motor was before there was a 2015 part, or this Chrome shaft part, were available. The dealer they got the bike from gave them an updated part to use, but it failed too. They had already put in the replacement shift parts.
So now she's on her 2nd rebuild, and then they will sell it, or trade it for a new 2015.

It is amazing that you were able to get such a great response to a problem, yet I'm seeing so many talk about Yamaha just leaving everyone in the road.
mgifracing 11/29/2014 8:42am
11/29/2014 8:42am
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always taken care of the customer in one way or the other. Shoot me a vin# and I'll see what I can get going for ya. I"ve been a Yamaha parts guy for over 20 years.
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slipdog 11/29/2014 8:45am
11/29/2014 8:45am
jeff.cohen.923 wrote:
slipdog you are probably right which I am afraid of. I had bought the bike with really bent radiators so I figured hey how bad can...
slipdog you are probably right which I am afraid of. I had bought the bike with really bent radiators so I figured hey how bad can they be lol. Well a warped head and two more oem radiators later. Live and learn I guess. As for when I have the head milled if it is warped, how much can be taken off before you run into clearance issuses. I believe the piston is 13.5 to 1.
Clearance will depend on the camshaft and how much you have to take off. Your compression will go up as you will lower the head volume, but your squish clearance won't change. the only thing to change would be the piston to valve clearance and should be checked, but likely you won't have to take enough off drastically change anything very much, even the cam timing.

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slipdog
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slipdog 11/29/2014 8:51am
11/29/2014 8:51am
mgifracing wrote:
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always...
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always taken care of the customer in one way or the other. Shoot me a vin# and I'll see what I can get going for ya. I"ve been a Yamaha parts guy for over 20 years.
I've also seen Yamaha step up and take care of fluke manufacturing defects on several occasions. Only one time have I seen them deny a premature engine failure.
Berm
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Berm 11/29/2014 9:31am
11/29/2014 9:31am
Berm wrote:
yamaha does stand behind their products. I bought a gyt-r piston from yamaha dealer, installed it and blew up my motor in 8 hours. Took it...
yamaha does stand behind their products.

I bought a gyt-r piston from yamaha dealer, installed it and blew up my motor in 8 hours. Took it to the dealer who said the circlips were in wrong (they weren't but we couldn't be sure). Bought another gyt-r piston and had the dealer install it. Blew up in 8 hours again (hour meter, almost to the exact hour). Took it back to the dealer and they rebuilt it again for free (another gyt-r piston, because yamaha said that wasn't the problem). Blew up in 7 hours. Dealer talked to yamaha, they refunded all of my rebuild money and sent me a brand new in crate motor. Gyt-r pistons were discontinued for about a year after that.

This was the first motor I had ever blown, and the dealer is aware of how well I maintain things.
Truckdriver wrote:
WOW! That's one heck of a dealer!! You should have said their name, they deserve extra credit. And how did they approach Yamaha about this?? I'm...
WOW! That's one heck of a dealer!! You should have said their name, they deserve extra credit. And how did they approach Yamaha about this??
I'm kind of bummed for my friends here, they seem to have gotten quite a run around on this deal. I have been on Yamaha's since October of 2000. I have been amazed at how long they run with out any issues. But this water pump problem is very weird. And I believe the first explosion of this motor was before there was a 2015 part, or this Chrome shaft part, were available. The dealer they got the bike from gave them an updated part to use, but it failed too. They had already put in the replacement shift parts.
So now she's on her 2nd rebuild, and then they will sell it, or trade it for a new 2015.

It is amazing that you were able to get such a great response to a problem, yet I'm seeing so many talk about Yamaha just leaving everyone in the road.
Donahue supersports out of Wisconsin Rapids is the dealer. This happened back in '06-07 winter. They sponsored Nathan Laporte for nationals this past summer too.
mgifracing 11/29/2014 9:52am
11/29/2014 9:52am
Berm wrote:
Donahue supersports out of Wisconsin Rapids is the dealer. This happened back in '06-07 winter. They sponsored Nathan Laporte for nationals this past summer too.
Donahue's have been a stand up dealership for a long time. Great folks up there, No doubt. I use to race against their flat track team alot back in the DAY.
Crisp BRAAAP! 11/29/2014 9:52am
11/29/2014 9:52am
mgifracing wrote:
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always...
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always taken care of the customer in one way or the other. Shoot me a vin# and I'll see what I can get going for ya. I"ve been a Yamaha parts guy for over 20 years.
slipdog wrote:
I've also seen Yamaha step up and take care of fluke manufacturing defects on several occasions. Only one time have I seen them deny a premature...
I've also seen Yamaha step up and take care of fluke manufacturing defects on several occasions. Only one time have I seen them deny a premature engine failure.
Well...there have been some other issues like this one. The 05/06 YZ125 shift stopper issue comes to mind. I lucked out and got mine changed before disaster but there are plenty of boned bottom ends out there from this one and as far as I know Yamaha did not help. This sound reminiscent of that one to me. At the very least, they could have swapped out the "correct" part free of charge but I guess that'd be admitted there was a problem legally speaking.

Other than that, it seems like the Yamahas are very solid bikes as long as you avoid these occasional engineering oversights that can take your whole motor down.
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Flatliner 11/29/2014 10:00am
11/29/2014 10:00am
I hope Yamaha helps you out, but I stay away from first year bikes cause of stuff like this. It's always a good idea to let them work out the kinks first. It's not like Honda was helping anyone out with valves on the 04 crf 250 ( which I bought ).
Truckdriver
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Truckdriver 11/29/2014 10:20am
11/29/2014 10:20am
mgifracing wrote:
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always...
Truckdriver: It sounds like someone is not doing what they are saying they are doing. I've bled blue for 30 some years and Yamaha has always taken care of the customer in one way or the other. Shoot me a vin# and I'll see what I can get going for ya. I"ve been a Yamaha parts guy for over 20 years.
I sent some posts to my friends dealer, and just like that they are going to look at the bike and see if they can't get it fixed. Ha, your words opened some doors. Thank you.
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Berm 11/29/2014 10:23am
11/29/2014 10:23am
The information regarding recalls should be told to you by your dealer, not yamaha. No reason to expect yamaha motor corp to inform everyone.
Truckdriver
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Truckdriver 11/29/2014 10:27am
11/29/2014 10:27am
Berm wrote:
The information regarding recalls should be told to you by your dealer, not yamaha. No reason to expect yamaha motor corp to inform everyone.
And I'm thinking you have the best dealer out there!
mgifracing 11/29/2014 10:39am
11/29/2014 10:39am
If you have anymore issues Truckdriver, Let me know. Hope all goes well for your bud, If not I can try to get him with a service rep.
tomm55x
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tomm55x 11/29/2014 10:40am
11/29/2014 10:40am
When I was buying my 14 yz250f I had mentioned the water pump problems with the dealer I bought it from in Buffalo NY, he denied any such claims of failure so I showed him the sites that talk about it shitting out, this site included, they still said they never heard of any recalls or any such thing happening with the water pumps from yamaha, I was reluctant but bought a new yzf anyway. now what I just did was order the split stream water pump from motostuff.com just so I'm not riding thinking about if my water pump is going to crap out or not, maybe it would have, maybe not, I just wanted peace of mind so I spent 220.00 on the high flow kit cause it was cheaper this weekend only. It's 15% off that site till Monday I think. Anyway seeing as I race amateur and woods ride also just figured this problem can be avoided all together whether yamaha owns up to there mistake or not, I shouldn't have to worry about it. I hope you're yamaha dealer takes care of you!!
mgifracing 11/29/2014 10:43am
11/29/2014 10:43am
There were a few impeller shafts sent out that weren't quite the right fix but the updated new part is what is in the system and what you'll get even if you order the old part # now.
ADynes
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ADynes 11/29/2014 12:21pm
11/29/2014 12:21pm Edited Date/Time 11/29/2014 12:23pm
jeff.cohen.923 wrote:
mgifracing just wondering if you have seen any issues with the 2011 yz250fs not being able to hold coolant. it literally blew my Chinese radiator up...
mgifracing just wondering if you have seen any issues with the 2011 yz250fs not being able to hold coolant. it literally blew my Chinese radiator up and now I got the oem ones on there and it just pisses out of the overflow when ever you give it gas. my only thoughts is it has to be a bad headgasket. the top end has about 5 hrs on it and it didn't do it until about the third hour, so I am fairly confident its put together right. Not trying to hijack this thread but I saw it and had to ask, its been bothering me a lot and before I tear down the motor I wondered if there is something know about this problem
mgifracing wrote:
Before you put it back together did you make sure the surface of the head wasn't warped. My 08 had that problem and my head mounting...
Before you put it back together did you make sure the surface of the head wasn't warped. My 08 had that problem and my head mounting surface had a bit of a blemish and a got that smoothed out and a new head gasket seemed to cure it. Normally don't have many issues with the Yammies(especially pre 14), We get mostly destroyed Hondas here.
Jeff, I had the same problem with my kx450f. I thought I had a bad head gasket or warpage problems, so I surfaced the head and cylinder and installed a new gasket, but it kept spewing out the overflow. The problem ended up being the water neck on the radiator.

Pressure test your radiator with cap installed to see if it will even hold rated pressure. I had problems with both the oem radiator and aftermarket aluminum ones. What I found was that the water neck was too deep, and wouldn't compress the spring on the cap at all. They would only hold about 5psi before blowing out the overflow. This happened with both radiators, and 4 different caps. I ended up carefully filing down the top of the neck on the aftermarket aluminum radiator so that the spring would actually compress when the cap was tightened down. I eventually got it to hold rated pressure. Problem solved, for me at least.


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