B&A lawn care
08-01-2008, 09:57 AM
I resurrected a VERY neglected Exmark with a FB460 and it has a starting problem that mystifies me. When I bought it it would not start and found several things causing it including the exhaust valve clearance which had closed up to the point of holding the valve open all the time. I corrected the clearance and reconditioned the valve and seat and it will 90% of the time start on the first pull. If it does not start on the first pull you are in for some excersize for your arm and a test of holding your tongue. In every case starting or not, that first hit sounds like it is about half firing right straight out the exhaust with a popping noise but most of the time it will kick the motor over and it will then run (engine runs like a top) If it does not kick it over and run on that first try it will pop out the exhaust on most pulls but wont kick over and run. If you leave it sit about 5 minutes it wil start (most of the time) Coil and ignitor are both new, plug has been changed twice. Magnets seem to be OK, dont know how to check them. Checked the valves again, both seated. Anyone want to throw some ideas at me? The darned thing runs too good once it iis going to pitch it but I am about at that point. (I have found few people that are willing to pay me while trying to start the dang mowers)