SOURCE: Ryobi 25cc grass timmer, cuts out when full throttle applied
check gas cap vent check ball may be stuck
SOURCE: One year old Ryobi s430 4 stroke trimmer will not start.
Check the fuel lines for cracks/breaks. If they are o.k., then:
Youwill
need to disassemble the carburetor and spray with carb.cleaner.Make
sure the small screen is free of debris. (Should be able to seedaylight
through it.)
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 the carb. parts are more than 4 years old, you may have to replace them.
If you need further assistance on:
1. Fuel line replacement or
2. Carburetor kit replacement
Just let me know.
Jim
SOURCE: steps to run Ryobi RY34420 30cc 4-Cycle Gas Lawn Grass Weed Trimmer
This is the Cars and trucks section. You need an Expert for small engines to view this. Relist in a better catagory.
Investigate the fuel line inside the fuel tank. Sounds like it may be split or cracked, or broken off. The line has a weighted pick up filter, and it is very common for the line to crack or break off so that when tilted, the line is above the fuel level.
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae
Testimonial: "BINGO! The black line on the inside of the tank was broken and just bearly holding on at that coupler. Runs like a champ again. Thanks so much for doing what you do!"
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