wr250r/x BAD fuel pump? whats your build date ?

Started by tx2whlr, Jul 11 2009 03:43 AM

137 replies to this topic

tx2whlr

Posted 11 July 2009 - 03:43 AM

I'm starting this thread in hopes of narrowing the problem down to a bad batch of pumps, and regaining faith in our beloved little bike.
mine is mfg date of 2/08 and vin of 001645

By the way turned the key this morning, fuel pump cycled and it fired right up. It was very hot here yesterday 102 or hotter and even at 11:00 last night it still wouldn't start.

Pete

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Alacrity

Posted 11 July 2009 - 07:22 AM

Keep the faith, work the problem - All mechanicals have weak points. They get ironed out over time. No need to lose confidence - I don't even own one, but its a great little bike given its intentions. Whenever I look at this I'm inspired.

Posted Image

Hopefully others will post the info you're looking for.

skierd

Posted 11 July 2009 - 08:57 AM

1/08, 1090, no problems to date with ~5500 miles but it hasn't been hot here yet.

johno16

Posted 11 July 2009 - 04:27 PM

tx2whlr said:

mfg date 25Rr 2/08 vin 000270 1500klm (less approx 10%)
IMHO The pumps are cutting out under thermal overload generated by the pump itself not through ambient heat, although this will certainly have some effect.
A tell tell sign is the pump making a different sound from the normal 'whirr'
when the key switch is turned on.
Could the fuel be the problem? Having a chemical reaction on the plastic parts of the pump? Or just a bad batch of parts machined to the wrong tolerance?
Hope this helps.

Warp6

Posted 11 July 2009 - 05:05 PM

Alacrity said:

Hopefully others will post the info you're looking for.

If the bike in that pic is a gravity-fed carburated bike (I know it's not) there is no electric pump to worry about. Rather than having jugs of fuel, you better also have an extra puel pump strapped on there somewhere. Isn't that reassuring?

Alacrity

Posted 11 July 2009 - 05:41 PM

Warp6 said:

Of course not - I was not keen on Fuel Inj for exactly this reason. It appears my concerns were dismissed too quickly.
Given the record of engineering for most mfg, I can assume its an isolated and, hopefully quickly remedied issue.

The majority of the bikes I've ridden in the last year have FCRs. So for me its not an issue - and I hope its not one for the WRR either long term. I still think its an awful good bike - matched extremely well for its niche.

Theres been a long standing suspicion of ethanol causing failures of electric fuel pumps going back to the Mk 1 Golfs (Rabbits). Wonder if that possible?

tx2whlr

Posted 11 July 2009 - 06:47 PM

Warp6; isn't your bike in the shop right now for a similar problem ? if so do you think heat was an issue when your bike acted up ? slow speed ridding or high ambient temps ?

Quote

I believe on my bike it is a thermal issue, this is the first time I've ridden my bike in temps at or over 100, or it was just a coincidence, time will tell.

Pete

Warp6

Posted 12 July 2009 - 05:53 AM

tx2whlr said:

Warp6; isn't your bike in the shop right now for a similar problem ? if so do you think heat was an issue when your bike acted up ? slow speed ridding or high ambient temps ?

I believe on my bike it is a thermal issue, this is the first time I've ridden my bike in temps at or over 100, or it was just a coincidence, time will tell.

Pete

My bike is in the shop. It decided one day to not start. I drove it to it's parking spot and shut it off a couple weeks prior. I don't think driving style would have an effect on the pump. It should idle all day or run wide open all day. I think these are just bad pumps. I wonder if there's an aftermarket pump out there somwhere that will fit.

zachsb3

Posted 12 July 2009 - 07:40 AM

my pumps also shut off in the high heat its been 100+ past two weeks here, i got stuck at work one day when it didnt start. it shut off while my brother was riding earlier in the week too. prob takin it to yamaha if it happens again.:banghead:

edit. build date 3/08 #877

CopaMundial

Posted 12 July 2009 - 01:04 PM

#10

In addition to the build date, it would be helpful to know how many miles were on the bike when the pump failed.
So far it seems that the people who are going to have an issue see it show up inside of the first 2k miles. We're looking at a small group here, so I can't be certain, but I don't think we've heard of anyone with say 6000 miles or more suddenly have their fuel pump start acting up.
That might be the silver lining in this somewhat dark cloud.

skierd

Posted 12 July 2009 - 10:18 PM

#11

CopaMundial said:

So far it seems that the people who are going to have an issue see it show up inside of the first 2k miles. We're looking at a small group here, so I can't be certain, but I don't think we've heard of anyone with say 6000 miles or more suddenly have their fuel pump start acting up.

The low mileage thing is what makes me think its a bad batch of pumps (either a part or assembly issue) and not a design defect or ethanol in the gas as has been stated here and elsewhere. If it was a design problem, every pump on every bike would be failing at about the same mileage. With a part or assembly issue on a few specific pumps, the majority would have no issues and the few that were put together wrong, or right with the bad part, would fail fairly early in the life cycle of the part. We'll see whats up when more people weigh in I guess, its supposed to hit 90 this week finally and I'm about to go carless, so I hope this doesn't happen to me...

mr_beat

Posted 13 July 2009 - 07:26 AM

#12

I never really even knew this was a problem. Approximately how many people here do you think have had problems total?

For those that have, is the difference in fuel pump sound pretty noticable?

CO250R

Posted 13 July 2009 - 09:05 AM

#13

VIN# 1619
02/08
1500 miles
no problems

tx2whlr

Posted 13 July 2009 - 10:01 AM

#14

Quote

I never really even knew this was a problem. Approximately how many people here do you think have had problems total?

For those that have, is the difference in fuel pump sound pretty noticable?

At last count 8, 5 of which have been confirmed bad pumps and 3 (including mine) that are in the shop or on the way to the shop.

My bike either wouldn't start (no pump) or just died while riding, I didn't notice any difference in the sound of the pump when it did run.

Pete

levity

Posted 13 July 2009 - 04:39 PM

#15

1/08, # 000071
~3,000 miles
no fuel pump problems
or any other issues (other than operator error) :thumbsup:

Jaynen

Posted 14 July 2009 - 06:57 AM

#16

won't let me delete =/

tx2whlr

Posted 14 July 2009 - 08:51 AM

#17

Ok I went back and modified the title of this thread, apparently people misunderstood its purpose. I'm only interested in the build date, vin , mileage and operating conditions of the bikes that HAVE HAD FAILURES, so that we can isolate the problem to a bad batch of pumps or determine if this may be a much more wide spread isssue.

I'm glad to hear there are so many trouble free wrr/x 's out there.

Pete

Chadx

Posted 14 July 2009 - 09:37 AM

#18

Yep, and would be easier to sort through the first part of this thread if those that posted a "mine is OK" post went back and deleted them. Then we can sort through the problem VINS/dates easier.

miamimotorcyclist

Posted 14 July 2009 - 11:45 AM

#19

Chadx said:

Yep, and would be easier to sort through the first part of this thread if those that posted a "mine is OK" post went back and deleted them. Then we can sort through the problem VINS/dates easier.

Seems if the bikes are in the same vin and build date that a, mine is okay with odo reading and mods or not is relavent for comparison, but I'll delete mine and let you all worry about this for me.