Hi guys, new to the forum here.
I have recently picked up an older MTD 38 Yard Machine with a 12.5 HP non OHV Briggs that starts and runs fine cold but if I shut it off it will only turn over half way and lock up like there is too much compression. If it sits a while it will turn over normal and start quick and easy no problem. The seller told me it needed a new battery as it needed a boost to start it when I went to see it. Upon original inspection I noticed the oil was a little dirty and the choke cable was disconnected but overall good condition for it's age. When I got it home I drained and refilled the oil, removed and cleaned the carb while repairing the choke function. I checked and cleaned my connections at the starter and replaced the battery as the last one was five years old according to the date code on it. It was only during the first time cutting the grass that I noted the trouble starting hot problem. I have been reading through various threads and it seems that there is a similar problem with B&S OHV engines with a compression relief mechanism that fails on the CAM but as I understand the older IC Quiet engines don't have that design. Any suggestions would be appreciated as the machine runs and cuts like a new one but it would be nice to be able to shut it down and restart it hot.
I have recently picked up an older MTD 38 Yard Machine with a 12.5 HP non OHV Briggs that starts and runs fine cold but if I shut it off it will only turn over half way and lock up like there is too much compression. If it sits a while it will turn over normal and start quick and easy no problem. The seller told me it needed a new battery as it needed a boost to start it when I went to see it. Upon original inspection I noticed the oil was a little dirty and the choke cable was disconnected but overall good condition for it's age. When I got it home I drained and refilled the oil, removed and cleaned the carb while repairing the choke function. I checked and cleaned my connections at the starter and replaced the battery as the last one was five years old according to the date code on it. It was only during the first time cutting the grass that I noted the trouble starting hot problem. I have been reading through various threads and it seems that there is a similar problem with B&S OHV engines with a compression relief mechanism that fails on the CAM but as I understand the older IC Quiet engines don't have that design. Any suggestions would be appreciated as the machine runs and cuts like a new one but it would be nice to be able to shut it down and restart it hot.
