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dirtylos

help with 04 wr450

11 posts in this topic

I could use some suggestions on what to do with my 04 wr450!

During a rough up hill climb i fell over and then 5 to 10 minutes later

bike popped and sputtered then died. Got it running then died a little

ways down the trail and again... Next morning starts and runs great for

20 min and dies on me again? Changed the plug when i got home and

again starts and runs then dies . Pull plug check spark its good, tank back

on starts and runs. Go for ride and dies again! I seems that it is flooding

and when i pull the plug and kick it over and put it back together it starts??

Any ideas???? thanks

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Check your gas tank vent valve and that it is not creating a vacuum thing going on inside your gas tank -- see if fuel flows freely from the gas tank pet cock -- dirty carb/float sticking? faulty coil pack are a few ideas?

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thanks for the reply!! I have tried my other tank on with stock petcock,cleaned my carb,checked for fuel in the bowl. Float seems ok but maybee i don't know enough about

it to tell? I could try checking out the coil pack. Thanks

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I had a similar problem with my 04' and it ended up being the coil, it was about $75.00 from the dealer.

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BOBR, Seems weird that i can get it started everytime i pull the plug and kick it over a couple times and put it back together?What kind of things did your bike do? Cheers

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I could use some suggestions on what to do with my 04 wr450!

During a rough up hill climb i fell over and then 5 to 10 minutes later

bike popped and sputtered then died. Got it running then died a little

ways down the trail and again... Next morning starts and runs great for

20 min and dies on me again? Changed the plug when i got home and

again starts and runs then dies . Pull plug check spark its good, tank back

on starts and runs. Go for ride and dies again! I seems that it is flooding

and when i pull the plug and kick it over and put it back together it starts??

Any ideas???? thanks

Next time it dies, try this:

Take the float bowl plug out, and see if gas comes out. No gas, you have a clog somewhere between the tank petcock and carb, or a clogged gas cap vent.

Got Gas? Don't do anything, and wait until the bike is cooled off, and try it again.

If it starts when cool, it's probably your stator.

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My 04 did the same thing, hope yours isn`t like mine but I figure I gotta throw out the possibility. CDI went bad, turns out the voltage regulator was NFG and overvoltaged and took out the CDI. Bike would run when cold but warm up the electrics and she ran like sh*t. Bummer, expensive, but the bike is back to running great now. Oh yeah the CDI is the only thing you can`t check with a meter. So it`s a process of elimination.

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Thanks for the replies, i guess i have some work to do. I did however check

for fuel in the bowl after it died. It had fuel . It had spark. I had the bike running

in 10 min after it died by pulling the plug and kicking it over a couple of times then

putting her back together? Not sure where to start now with the different replies!

p.s. it ran for twice as long the second time then i held the kill switch on kick her

25 times and got it to fire but ran shitty and died again

Edited by dirtylos

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my problem ended up being a simple fix it was the orange wire going into the coil plug

it was a bit loose and would work its way out enough to lose contact. When i checked

for spark each time the connection would get reconnected, allowing my bike to start

again! I thought it was a fuel problem and had tunnel vision so it took awhile before i

figured it out!! Thanks again for the help... cheers

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