Model #ONB Rheem furnace/heater, oil

  • Model Number Notes
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  • Replacement Parts
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Question and Answers


Remove blower housing and recoil starter onb model 358.796121 weedwacker.


I am sorry you continue to have problems with the trimmer. The cap does have check valve that will allow air into the tank but will not let air out. It is normal for the tank to build some pressure. If the engine is flooding after the tank builds a little pressure, I suspect the needle in the carburetor is not sealing. This could be cause by something stuck in the seat or the diaphragm is stiff and holding the needle open. I recommend cleaning the carburetor and replace the gaskets and diaphragm if needed. The link below will aid in this repair. I hope this is helpful. Please let me know if you need further assistance.

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Mark T -
Sears Technician
April 02, 2012