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Concerns breaking in my Savage 25

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francis

RCTalk Rookie
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I am a little concerned about how my Savage is acting at the moment as i am breaking it in. I have heat cycled the engine and i am now running the enging rich at low speeds. When i first start up my savage once the engine has cooled it will sometimes cut out and once it has done this there is a sound of something spinning from near the flywheel. When i start the engine again it will start fine and idle nicely. Is this spinning a normal sound to hear when the engine cuts out?:shrug: I am just concerned that i am harming the engine.
 
Is the spur gear spinning when the engine cuts out? Is the truck moving when the engine cuts out?

Sounds normal if it is.
 
It happens when i just start the engine as the truck is stationary and idling, i will have to check the spur gear next time i start it up.
 
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