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jordan.cliner jordan.cliner
6/26/2018 4:54 PM

Started my yz125 up today and it idled good for 10-15 seconds then it sounded like the throttle was pinned and I couldn’t get it to stop, and ideas thanks?

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kb228 kb228
6/26/2018 5:14 PM

Air leak in intake boot, base or head gasket, or crank seals. Rpms should change when you spray carb cleaner on the leak

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jordan.cliner jordan.cliner
6/26/2018 6:29 PM
kb228 wrote:

Air leak in intake boot, ...more

Thanks for the help I don’t have a hose clamp on the intake boot so it could be that, I’ll test all the things you listed, thanks

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Paw Paw 271 Paw Paw 271
6/26/2018 6:33 PM

Also a clogged pilot jet can cause this.

Paw Paw

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