My shop has repaired over a 1000 lawnmowers, Tractors, and miscellaneous Outdoor Power Equipment a year for the last 50 years. We use nothing but SHELL ROTELLA T-4 15W-40 OIL in all 4- Cycle engimes without any failures. Robbie
To simplify your request why don’t you post the Model, Type, and Serial number of your Tecumseh engine and then look it up here on Tecumseh. For what it is worth I have serviced over 1000 Tecumseh Powered Snowblowers and none of them used a carb with a built in primer. They all have a primer...
The eady way js to use
You can use a clip on amp meter attached to the positive battery cable. To test remove the fuse from the alternator and run the engine noting the amp and voltage draw. Shut the engine off and reinstall the fuse. Start the engine. If the amp meter is showing positive amps...