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    antulio48754's Avatar
    antulio48754 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 27, 2008, 10:03 AM
    Sears Snow Blower 5.0 hp Tecumseh Engine Problems
    I have a Sears model number 536.88521200 snow blower. It is a two cycle with manual and electric start. After I run it for 10 minutes or so, the engine revs up to full r.p.m.. It:s almost like the acclerator is stuck. It still runs fine but I am afraid the engine will burn out. I shut it down, it will then continue running for 30 seconds or so. If I start back up soon, if will run in this high rev state almost immediately.

    Any ideas?

    Thanks
    MOWERMAN2468's Avatar
    MOWERMAN2468 Posts: 3,214, Reputation: 243
    Ultra Member
    		  
    #2

    Jan 28, 2008, 11:48 AM
    Lubricate the throttle controls.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #3

    Jan 28, 2008, 02:18 PM
    There is a governor on most small engines. It's a flapper that causes a displacemnt of a rod based on the amount of air exiting the flywheel. The linkage is attached to the throttle and has a return spring.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Jan 28, 2008, 06:13 PM
    I'm thinking that KISS is thinkling that the return spring has fallen off, I'm thinking.
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