Carb settings for Homelite weedeater ST-275 - Homelite Garden

Usually low is on the left side if you are standing on the right side with the motor on the left

Here's a link Craig to a owner's manual for your trimmer. https://oregoncordless.com/au/wp-content/uploads/2014/06/564571ab_ST275_OM_EU_EN_USE-FOR-AUSTRALIA-SITE.pdf

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A good starting point is from a lightly seated position, back the Hi and Lo needles out about 1.5 turns each. From that point you can fine tune the machine.
This will help you:
http://www.zamacarb.com/tipspage.html

how to change fuel filter in gas tank remove line from carb pull line through the fill hole in gas tank remove filter replace & pull hose back up reconnect to carb & your done

Homelite products are 40:1 gas-oil ratio.

ther is no set setting but to get it to run so it can be adjusted. lightly close the high off then open the low about two turns. try to start if starts slowly adust the low screw till it runs normal with the choke all the way off. then start to add throttle while turning the high out till regiured rpms ar reached with no misses. this takes awhile even fo a seasoned mech and may require several attempts

Hi Glenn,

First, check the fuel lines for cracks/breaks. Replace if bad.

If they are o.k.,then you will need to disassemble the carburetor and spray with carb.cleaner. Make sure the small screen in the carb. is free of debris. Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152), to clean the small portals in carb. These portals can become blocked. Reassemble and start.


If you need further assistance, just let me know.

Jim

You have carburetor problems. You will need to take the carb. off and disassemble. Clean the carb. with carb. cleaner and use a Den Tek Brush, (used for cleaning teeth), for the small portals. Check the small screen in carb. to make sure it isn't clogged. The smallest of particals can cause the carb. problems. Check the gaskets as well. Depending on how old your trimmer is, you may have to buy a carb. kit and replace the Needle valve, appropriate gaskets, diaphragm, and small screen.

Jim