loosin power

Havn't changed your carb mainjet setting lately have ya?

When it starts to loose power.. does a little choke help any? If so look for weak spark, vacume leak, or fuel delivery problem ).

Soundguy

Any suggestions?

Check your spark.. chek the conditions o fhte cables, and the rotor/cap.. check the electrical connections upstream, like to and from the resistor and the ignition switch. Corrosion / rust will lower the voltage.

Check voltage at the top of the coil.. should be 2.5-3.5 with points closed.. and batt volts points open.

If it isn't there.. check the air breather.. a clogged air breather can be as bad as a clogged fuel line. Next check fuel flow at the carb bottom.. you need a nice healthy stream. Might run it into a glas jar to look for water or sediments.

Failing al of that you might check for a vacume leak. There are a couple ways thet get mentione dalot. 1 way is to start the tractor and then spray a whif of ether around the carb.. if the engine speed changes.. you have a leak. Can also be done with an unlit propane torch.. jus tturn the gas on and wave it around the carb, and gaskets.. that latter one is probably safer to a degree. Also.. do this outside.. and try it when the tractor is cold.. less dangerous.

Soundguy