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riding mower engine


hankcam's Avatar
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07-28-02, 02:47 PM   #1  
hankcam
riding mower engine

recently purchased a Snapper riding mower at yard sale. Had 6.75 Tecumsh engine. Engine would run but when full load put on (wheels and mower blade) would bog down and stall. Could not restart. Replaced engine with used Briggs 6.0 HP vertical shaft engine. Same thing - engine runs good but when load put on it runs about 2 minutes then dies. Will restart when carb is primed but dies shortly thereafter when load put on. Any suggestions?

 
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07-28-02, 02:58 PM   #2  
Hello Hankcam. Welcome to our Do-It-Yourself Web Site and our Small Engine forum.

Since replacing the engine did not resolve the problem, the engine iasn't likely the cause.

If there is a remotely mounted fuel tank, the filter could be restricted and or the vent hole in the fuel tanks cap could be restricted and or clogged.

Other possibilities:
Could be binding parts that are revolving.
A defective gear box and or parts within it binding up.
Clutch problems, linkage and or transfer case drive axle problems.

Most likely I have not covered all of the potential possibilities. The other resident small engine service and repair professionals may offer additional suggestions, advice & help.

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08-09-02, 11:13 PM   #3  
Six HP seems awfully small for a rider. I worked my way through ye old war skule repairing snappers. I don't recall a 6 or 6.5 hp on any riders even on the little 24" cut.
If it's the old disc drive, you should feel any problems in the drive by rotating the wheels by hand when the wheels are off of the ground. Likewise the blade should spin freely by hand (disconnect the spark plug) when it is not engaged. If these check out ok, you may want to try an 8 or 11 hp engine and see if you get better results.

 
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