Problems with Craftsman with Kohler CV15S
Like many others, I am having problems with my Craftsman Lawn Tractor with a Kohler Command CV15S. It will not start without spraying carb cleaner or starting fluid in carb. When it does start it runs a little rough, unless I engage the blades. Then, when running at faster idle it sounds better. So far I have rebuilt the carb, replaced the idle needle, replaced the fuel filter with Kohler part, and pulled the valve cover. When I pulled the valve cover, things look ok, but I am curious when it sparks relative to the magneto. It looks like the piston is at TDC about the time the magnet is 1/4 past the module. Is that when it should? I also noticed that when the intake valve closes the exhaust valve opens slightly then closes. Is this correct? Anyway, it runs rough, and stalls as soon as I engage the blades in the grass. It sputters and dies.