Question about RTO 200cc Full Size Four Wheeler ATV

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My '06 Yamaha ATV 450 sputtered and stalled out twice yesterday after I ran it flat out for less than a minute. It was sufficiently warmed up and ran fine after that, but I'm wondering what the problem could be. Just seems like when I run it hard...any suggestions?

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Clogged fuel filter or petcock

Posted on Mar 12, 2014

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Posted on Jan 02, 2017

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SOURCE: i cranked my atv this morning, ran fine. i

check the fuse

Posted on Jun 29, 2010

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Check the air cleaner and any ductwork for blockage. (Mouse nest?)

Inspect the fuel system. If the fuel line is out of place and too close to the exhaust or cylinder head, the fuel may be boiling inside the line so you don't get proper flow to the carburetor (this is one possible cause of vapor lock).

Is the choke actuator part of the new carburetor? Verify that the choke is opening when the engine warms up. If it is an automatic choke, inspect the vacuum line and thermostat controlling it. Try removing the vacuum line from the choke actuator and plugging it when the engine is warmed up, then see if the engine keeps running. If it does, the actuator diaphragm leaks when the choke is open.

Check the exhaust pipe for blockage.

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