When I compress the trigger to get higher speed, it dies on me.

SOURCE: my TB475SS starts and then dies right away. i

It usually wont idle very well when it's cold, Goto #1 on the choke give the rope a couple of "quick" tugs, and then move it to #2 Give it one or 2 more tugs with a little throttle, now it should be running witha little throttle, let it run like that for a minute then move it to #3 kinda still pumping the throttle a little and it should take off fine. If this is the 4 stroke, mine did the same thing until it was broke in good. (About 4-5 uses), now I have to say its more reliable than any 2-stroke I've owned and I use it commercially. 1st or 2nd pull everytime and is ready as soon as it fires! Hope this helps!

SOURCE: bulb stay compressed for some time - no fuel to the carb

Replace or rebuild the carb or... get a good trimmer that's not a RYOBI sold under the names of Troy Bilt, Bolens, or MTD Yard Machines. My 2 cents. :)

SOURCE: Flywheel removal from TB425CS

YOU MAY HAVE TO USE A PULLER FOR THE FLYWHEEL I CAN'T SEE ANYTHING ON THE BREAKDOWN OF THE ENGINE THAT WOULD SHOW ANY THREADED HOLES FOR BOLTS TO REMOVE THE FLYWHEEL

Testimonial: "I think you're right about the puller for the flywheel. Thanks for the input."

SOURCE: fuel input line with filter in the gas tank on

It can be frustrating at times but not as hard as it looks. Cut the line on an angle and feed it into the hole in the tank ( should be a VERY snug fit or it will leak). Using a set of long hemostats reach in and pull the end of the line through the filler cap. Cut the line sraight and attatch the fuel filter and insert it into the tank. Then pull the fuel line back out of the tank till you have the proper amount in tank and filter lays nicely on the bottom. Then cut fuel line to length for proper fit to carb.

Roy Cagle

• 1545 Answers
• Posted on Sep 09, 2011

SOURCE: I have a 2 cycle Troy-Bilt TB90BC line trimmer.

One of three things is occuring here. The IDLE SPEED SCREW (Phillips head) on the throttle plate is screwed in way too far. The L and H mixture screws are open way too much allowing the carb to use excessive fuel, even on startup. Those 2 screws may need adjusting. The metering lever in your carb is not adjusted flush with the carb body flange and is holding the gas needle open constantly. Check these things and post back.