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Discussion Starter #1
We recently bought one of the original model waverunner, and it is doing really well.

It has a fuel shut-off with settings Off, Run and Res (reserve) . . . just like my 1968 Yamaha 80 motorcycle did. ;)

Now it only runs on the RES setting. If you set it to Run, it dies.

Any ideas?

Thanks.
 

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Haven't had to tear into one of those yet, but I assume they are similar to what was used on the older motorcycles. Your line is plugged at the petcock where the on/off/reserve is or between there and the tank, or in the tank. I would start by draining the tank, tracing the hoses from the petcock to the tank, and taking that assembly apart for cleaning. There may be a screen similar to the ones in the old motorcycles. A less favorable option would be to force air backwards through the hoses into the tank, but that would leave the garb that's clogging it in the tank.
 
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