Is the fuel pump working and building pressure? Maybe a fuel pump or injector issue? I just saw a youtube video from Dirt N Iron that covers this very well in a short video. You could search youtube for “Dirt N Iron. “I bought a non-running Wr450”. and it should come up.
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In that video, his fuel pump would spit out some fuel (so plug would be wet) but it would not produce the pressure needed to start the bike (somewhere around 40lbs).
Yeah in his video the pressure couldnt move his thumb and when he took his thumb off just a bit of fuel dribbled out. Sounds like you are good there.
Excellent! Please share any other work you do in the future if you feel like it. I like reading these types of threads to see how other people get along with their bikes!
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