I have an old Briggs and Stratton Model # 5S Type# 7000 44 Serial # 1117108. I tried to find some info but could not. Anyone know anything about these engines, where to find info (manuals), and parts maybe? It's mounted on a Planet Jr. Cultivator. The engine ran great just sitting there and the also with the drive engaged but once the the cultivator tines hit the soil the engine dies. I would like this running again as it is easier to use in the garden to get rid of weeds than the front tine rototiller. Any info is appreciated thanks in advance.