fuel pump problem

Here is a pic of the numbers on my old pump.
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I talked with Megan, a parts specialist at Yamaha customer service, ext 7126. She was very nice, but I don't really feel any better. She says there's been no word of a recall on the pumps on US bikes. She very gently cautioned me about making too much of anything I read on the 'net, and said from what they've found our crummy gas contributes to pump problems.

Sarah

I'd say easy way to pass it off. If that were the case, we'd be seeing more of that then, and not just with the 08's.

There's more 08s out there than 09 and 010 combined, the 08s have more time on them as well so it makes sense that there would be more problems with them
The numbers on the pump wont mean anything to anyone but the vendor that made the pump, (and Yamaha of course)
The part number of the pump will tell you if it's updated, they change the part number so they can track failures

f3joel wrote:

Here is a pic of the numbers on my old pump.

Thanks Joel. Is that the complete top number (no more behind the module plastic)?

Those numbers were all I could see.

Argh, this is happening to my New to me WR250X. It is an 2008 and was bought new in March 2010. I just picked it up with 111 miles. It has 120 miles now.

It is definitely heat related. The first day I got it it ran find and started in about a second every time. I put it in my detached garage and it is hot here and the garage gets even hotter (probably 95F in there). So, in the afternoon I decide to go for a quick spin. The bike has been sitting in the garage for about 3 hours. I put the key in and turn it and I don’t hear the pump at all, so think maybe it still has pressure so try to start it and it doesn’t. It was really hot in there so I pull the bike in to the shade in the car port (~80F). I open the gas cap and don’t hear any pressure, also the tank is almost full. I turn the key again and still nothing. After about 15min I turn the key and everything is fine. Last night the bike did the same thing. It had been sitting all day and first try no pump noise, then 10 min later sounded fine.

So, I need to give the dealer a call. I just picked up this bike this weekend and don’t even have a tag on it yet and have to get the warranty transferred over to me.


I will read all the posts on this and let you know what I find out. I am going to get a thermometer and check the fuel temp, before start and when it will start. I’ll also listen closely to any other sounds and record it for everyone.

Sounds like maybe you are going to record the sound of silence
I've heard it before LOL

Well, I'll post the sound if I actually hear something. From memory I don't remember it making any sound at all.

I am not sure now what the problem is. It does kind of seem like a relay problem or there is something in the fuel pump that gets stuck when too hot. I'll listen closely tonight.

The fuel pump works real good, or its weak and craps out. Sucks that it happened to you so soon after getting the bike. Wonder if that's why the PO got rid of it...

I am having the same problem and got stranded 3 times. its a 2/08 with a vin in the high 1300's, ~1800 miles. The first 2 times, it was a hot engine sitting in direct sun and it wouldnt start, it would crank just fine.

Today it was sitting all day in the sun/partial shade and it wouldnt start at 5:30pm. the engine hadnt been on since 7:30 am. temps have been in the mid 90's when this happened. putting it in the shade for a while cures it and it starts right up.

A check with the local dealer is in order, first to see if i am under warranty. (2-08 purchased new on ebay in 10-09, 0 miles) presumably yes but the paperwork is unclear.

The pump definitely didnt 'whirr' when turning the key on these 3 occasions. but it seems like there are other times it doesnt whirr but still starts.???

My pump has been acting up for about a year (built 02/08 vin 1429) as of late it's gotten real bad. Called Yamaha USA and talked to Erica ex7692, she informed me even though I am out of warranty, this problem is 100% covered by an "Emissions Warranty" if the dealer can recreate this issue, the forcast for the next week or so is HOT so I imagine they should have no problem doing this.

My WR is going to the dealer tomorrow. I still have some YES warranty left so there should be no problems. I'll let everyone know.

My pump is in the same boat. Where is the US recall Yamaha? 2/08 build date, and I'm out of warranty. Bought the bike used . Do you guys think I should attempt to contact original dealer , my closest dealer, or Yamaha customer service first? Usually happens when I'm low on fuel. Got it to start yesterday while it was cool, but lost confidence.

Jomamaha wrote:

My pump is in the same boat. Where is the US recall Yamaha? 2/08 build date, and I'm out of warranty. Bought the bike used . Do you guys think I should attempt to contact original dealer , my closest dealer, or Yamaha customer service first? Usually happens when I'm low on fuel. Got it to start yesterday while it was cool, but lost confidence.

Seems like people without a warranty have had the best luck contacting Yamaha directly. Look at DennisWRRs post 2 above yours. He states he talked to Erica at extension 7692. Sounds like a good place to start.

Has any one checked/ replaced the relay for the fuel pump problem? How do you know it's the fuel pump if it pumps fine while riding?

Well, you can here a slight click when you turn the key on. It seems there is something binding in the pump so when it is running it has enough power to keep going, but not enough to start the pump from a stop. I also have heard a few times when it wouldn't start the pump turning very slowly. At least on my bike. When it is running it seems to run strong. I am still in break in as I only have 180 miles on it. My bike is at the shop now but they my not be able to get to it for 1 week.

Also, if the relay went bad the pump would stop while riding also. Unless it also has a temperature problem, but with the recall in Japan it doesn't seem likely. I do have a wav file of the pump at normal speed and slow speed if anyone wants to hear it.

Even when my pump worked it wasn't working right.
The bike was down on power.

I picked up a leftover 08' and within 50 miles the fuel pump took a dump. It is a February build date which falls in the parameters of the defective pumps. The dealer replaced it under warranty and its all good now. I guess I would rather it happen sooner than later......?

For all you who had bad fuel pumps... I'm assuming when you turned on the ignition, the pump simply didn't pump, right? Did the starter turn over when you hit the starter button, or no? I'm trying to figure out if those two systems are somehow linked.

Yeah, just the pump. Mine would turn over just like normal.

Jomamaha wrote:

My pump is in the same boat. Where is the US recall Yamaha? 2/08 build date, and I'm out of warranty. Bought the bike used . Do you guys think I should attempt to contact original dealer , my closest dealer, or Yamaha customer service first? Usually happens when I'm low on fuel. Got it to start yesterday while it was cool, but lost confidence.

So I called Yamaha and they would not say if it would be covered . Brought it to my dealer to diagnose the prob. They found it was a bad pump and called the tech line. They are replacing the pump (even though I am out of warranty) , just gotta pay for the labor.

I'm having the same issue. Fuel pump will not prime when it is hot out, I let the bike cool down for a hour+ and it primes and starts right up. Yamaha is loosing my confidence. Dealer tells me they have not heard of this problem but it's posted on numerous sites. 2008 wr250r

SuperSize wrote:

Well, you can here a slight click when you turn the key on. It seems there is something binding in the pump so when it is running it has enough power to keep going, but not enough to start the pump from a stop. I also have heard a few times when it wouldn't start the pump turning very slowly.

Same here.
When my WRX is hot, I can actually hear 2 clicks of fuel pump relay: first when just turn the key, and second 3 seconds later.
On Monday will go to service station.

Anyone know parameters of fuel pump? I mean dimensions, litres per hour and so on. Just found source of Yamaha R1,R6 used pumps http://motorcycleparts2u.com/all-yamaha/fuel-pumps/.

I got mine back today, the dealer fixed it under factory warranty, no questions asked. it was indeed the pump.

MR. Metal, yes, the starter would crank, but it would not start.

nl