Craftman 205 mpg 2 cycle gas blower 40:1 raito will not start.

Make sure that the gasoline if new. You can spray a small amount of starting fluid into the carb to help start the motor. Make sure that you turn the switch to the run position.

replace the spark plug, make sure the air filter is clean, make sure it has fresh fuel. if it still wont start. give a shot of carburetor cleaner straight in the carburetor it should start and run for a few seconds. if it does. the carburetor needs to be cleaned. hope this fixes your problem, good luck

You need three things. Spark, compression and fuel. Pull the spark plug and make sure it is not fouled and you have spark when cranking. Put your finger over the spark plug hole and feel for compression while pulling the engine over. There is a reed valve between carb and block that clogs and prevents fuel from getting to cylinder.

This is back to basics, does it have a good spark when the engine is rotated with the plug out? if no replace the plug and try again if yes, does the plug get wet with fuel?if no replace the filter in the tank and try again, if yes is the plug soaked with fuel? if yes check the fuel inlet needle in the carb which maybe causing flooding, if no, is the spark occuring in the correct place, to check this remove the flywheel and check the key has not sheared, if the key is ok, it may be an air leak through a gasket or crank seal.

Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

Were you running a fuel mixture of 40:1(3.2 oz of 2 cycle oil to 1 gal of gas), that you mixed up before you started using it again. The unit may have had to much use on Saturday and may be burned up. Try to have a compression test done on the engine, needs to be at least 100 psi to run. If that proves to be good then you can start looking at Fresh gas mixture, a new spark plug, Carburetor rebuild or an ignition module.
HTH
Good Day.

first check for spark, if you have spark gap plug at .030. turn mixture screws completelin give a short squirt of carb cleaner directly into throat of carb and try to start if unit starts then dies ,carb needs to be rebuilt and also change fuel filter in the gastank. gas mixture 40:1

Check and,or; replace your fuel filter

Hi gr2954;

Lots of the starting problems with 2 cycle engines (weed eaters, blowers, chain saws, etc) are caused by leaving them stored for long periods of time with the oil/gas mixture left in them. what happens is that a residue forms on parts in the carb.

Try the following: empty the fresh gas out of the blower. add a gas stabilizer to the existing gas you plan to put in the blower. You can get this stabilizer at any auto parts store. While you are there get a can of spray start fluid. Put the fresh, modified gas in the blower. Take the spark out and spray some starter fluid in the plug hole.Replace the spark plug and try to start the engine.It will probably take a few cycles of doing this to get the blower to stay running.
when you put the blower up for a long period, empty the remaining gas out then start the engine and run it till it stops. this gets the remaining gas out of the carb.