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Working one a TB575SS (4 cycle trimmer, etc). I ordered a new carb and got ready to install same and I see the fuel lines have totally disappeared. With the new carb are lines for connecting the suction(black, has a weighted filter) and another I assume is a circulation hose(yellow) back to the tank.

Which connection on the carb is the fuel suction and with one is the return or pressure line? There are two different diameter bronze connections at the carburetor.

Maybe this will help. If not post engine numbers we can figure out which carb you have.

Rivets said:

Maybe this will help. If not post engine numbers we can figure out which carb you have.

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Thanks!! The only numbers I can find is the model: TB575SS

Thanks for the video! What I am able to understand from it is the inlet line from the tank goes on the tube closest to the priming bulb.

StarTech said:

View attachment 62433

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Thanks....simple explain!

This RedMax HBX2601lawn blower is killing me. I have the hoses on correctly. It will eventually get up to full rpm by hitting the choke 6-8 times. Will stay there long....funny thing it runs better up side down ...for a while.
Suggestions?

If it runs better upside down then a cupe of things come to mind
1) the fuel lines are connected backwards so the carb is sucking fuel in via the return line ( if it has one )