Specifications

4
5. When replacing the spark plug, consult the parts breakdown for the proper spark plug to be used in the engine
being serviced. Set the spark plug gap to .030" (.762 mm) and install the spark plug in the engine. Tighten the
spark plug to 15 foot pounds of torque (20.4 Nm). If a torque wrench isn’t available, screw the spark plug in as far
as possible by hand, and use a spark plug wrench to turn the spark plug 1/8 to 1/4 turn further if using the old
spark plug, or 1/2 turn further if using a new spark plug.
6. Make sure all ignition wires are free of abrasions or breaks and are properly routed so they will not rub on the
flywheel.
7. Properly reinstall the blower housing, gas tank, fuel line and air cleaner assembly if removed.
8. Make sure all remote cables are properly adjusted for proper operation. See chapter 4 under "Speed Controls and
Linkage".
9. Reinstall the spark plug wire, add fuel and oil as necessary, and start the engine.
STORAGE: (IF THE ENGINE IS TO BE UNUSED FOR 30 DAYS OR MORE)
CAUTION: NEVER STORE THE ENGINE WITH FUEL IN THE TANK INDOORS , IN ENCLOSED POORLY
VENTILATED AREAS WHERE FUEL FUMES MAY REACH AN OPEN FLAME, SPARK OR PILOT LIGHT AS
ON A FURNACE, WATER HEATER, CLOTHES DRYER OR OTHER GAS APPLIANCE.
Gasoline can become stale in less than 30 days and form deposits that can impede proper fuel flow and engine
operation. To prevent deposits from forming, all gasoline must be removed from the fuel tank and the carburetor. An
acceptable alternative to removing all gasoline is adding a fuel stabilizer to the gasoline. Fuel stabilizer (such as
Tecumseh's Part No. 730245) is added to the fuel tank or storage container. Always follow the mix ratio found on the
stabilizer container. Run the engine at least 10 minutes after adding the stabilizer to allow it to reach the carburetor.
CAUTION: THE USE OF SOME ANTI-ICING ADDITIVES MAY CREATE A METHANOL FUEL BLEND. DO
NOT USE ADDITIVES THAT CONTAIN METHANOL. FUEL CONDITIONERS THAT CONTAIN ISOPROPYL
ALCOHOL IS RECOMMENDED.
Draining the Fuel System:
CAUTION: DRAIN THE FUEL INTO AN APPROVED CONTAINER OUTDOORS, AND AWAY FROM ANY
OPEN FLAME OR COMBUSTION SOURCE. BE SURE THE ENGINE IS COOL.
1. Remove all gasoline from the fuel tank by running the engine until the engine stops, or by draining the fuel tank by
removing the fuel line at the carburetor or fuel tank. Be careful not to damage the fuel line, fittings, or fuel tank.
2. Drain the carburetor by pressing upward on the bowl drain (if equipped) which is located on the bottom of the
carburetor bowl. On carburetors without a bowl drain, the carburetor may be drained by loosening the bowl nut on
the bottom carburetor one full turn. Allow to completely drain and retighten the bowl nut being careful not to
damage the bowl gasket when tightening.
3. If "Gasohol" has been used, complete the above procedure and then put one half pint of unleaded gasoline into
the fuel tank and repeat the above procedure. If Gasohol is allowed to remain in the fuel system during storage,
the alcohol content will cause rubber gaskets and seals to deteriorate.
Change Oil: If the oil has not been changed recently, this is a good time to do it.
Oil Cylinder Bore:
1. Disconnect the spark plug wire and ground the wire to the engine. Remove the spark plug and put 1/2 ounce
(14 ml) of clean engine oil into the spark plug hole.
2. Cover the spark plug hole with a shop towel.
3. Crank the engine over slowly several times.
CAUTION: AVOID SPRAY FROM SPARK PLUG HOLE WHEN SLOWLY CRANKING ENGINE OVER.
4. Install the spark plug and connect the spark plug wire.
Clean Engine: Remove the blower housing and clean all dirt, grass or debris from the intake screen, cylinder head,
cylinder cooling fins, carburetor, governor levers and linkage.