Troy-Bilt zero turn 50" cut with Kohler Courage engine SV730S

evergladesgator

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  • / Troy-Bilt zero turn 50" cut with Kohler Courage engine SV730S
Twin v engine. Are intake valves on top or bottom ? Does this engine fire opposing cylinders or fire together ?

thanks
 

bertsmobile1

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  • / Troy-Bilt zero turn 50" cut with Kohler Courage engine SV730S
Exhausts are generally on the top except on snow blowers when they are on the bottom.
Reason is preheating the incoming fuel / air mix.
Needed in snow, not needed when mowing.
Inlet valve is open when the piston goes down
Exhaust is open when the piston is rising
Decompression happens just before top but is only open for a brief time.
 
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