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Ranwell1, Small Engine Technician
Category: Small Engine
Satisfied Customers: 10304
Experience:  I Own a Lawn Mower Sales and service business (37years). Have 2-cycle and 4-cycle certification.
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Troy Built 4 cycle blower won't start. Gas line is connected,

Customer Question

Troy Built 4 cycle blower won't start. Gas line is connected, primer bulb works, fills return line to tank. Spark plug is fine. It will run if I squirt small amounts of carb start into it, so it's not a coil/spark-plug problem. Seems like it's not getting any gas, but I can't tell how. Any ideas?
Submitted: 2 years ago.
Category: Small Engine
Expert:  Ranwell1 replied 2 years ago.
The most likely problem is that the carburetor is restricted with gum or dirt. The carburetor will need to be cleaned and rebuilt with a complete carburetor repair kit.
This problem usually happens after the unit is stored with gas left in the tank and carburetor. Gas cannot be used if it is over 30 days old and it cannot be left in the unit for more than 30 days at a time before it gums up the carburetor.
Clean the carburetor and you will most likely will solve your problem.
Expert:  Ranwell1 replied 2 years ago.
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Customer: replied 2 years ago.
Disassembed the carb, cleaned all the parts with carb cleaner, cleaned the needle, etc.. reassembed and it still has the same issue. Will run as long as I squirt carb start in the air cleaner, but won't on its own. Tempted to throw the stupid thing in the trash.
Expert:  Ranwell1 replied 2 years ago.
you did not replace the diaphrams in the carburetor, it will not usually work. The diaphrams are the fuel pump of these carburetors.
MAke sure that you wash the carburetor out with soap and water and blow them dry BEFORE you install the diaphrams . The residual carb cleaner would damage the diaphrams and cause them not to work if you don't wash the carb ins soap & water.