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gerardlane

2006 yz450f died without any reason...

6 posts in this topic

Hey all, My yammy has called it quits today. Shes got about 70 hours only 15 on the high compression piston. I stalled her in a corner and from then on she wouldnt start. There was plenty of compression when i kicked 'er... Ill have to tear her apart tommorow and check for spark but has anyone had this happen I checked for fuel too, there was plenty.... thanks

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My first thought is to check the timing. Second thought is bad coil or problem with the stator not supplying power to the coil.

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The spark plug may have fouled. I know its rare with four stokes but I would start there.

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I once had the slide disengage from the actuator (the small philips screw fell out) and kill the bike over a jump! It just died and no amount of kicking would restart it.

I did what everyone should do when the bike won't run...

1. check for fuel

2. check for spark

3. check for air

When I took the carb off to investigate and make sure it was getting fuel from the gas tank to the cylinder, I heard the rattling!

Check everything!

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I once had the slide disengage from the actuator (the small philips screw fell out) and kill the bike over a jump! It just died and no amount of kicking would restart it.

I did what everyone should do when the bike won't run...

1. check for fuel

2. check for spark

3. check for air

When I took the carb off to investigate and make sure it was getting fuel from the gas tank to the cylinder, I heard the rattling!

Check everything!

That must have been on one of your pink bikes... would never happen on a Yamaha :ride:

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That must have been on one of your pink bikes... would never happen on a Yamaha :)

Nope. The pink bikes have only had plugged up pilots and lost fuel screws.

The blue bike was the culprit. And it was over a jump!!!! I landed without the engine running and the clutch pulled in. Even though I was prepared for it I still kissed the front fender and did a nice flying W. Then I rolled off to the side and went - "WTH???

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