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Spin trimmer only accelerates about half rpm's. new carb. same pr

Acts almost like the brake is on a chainsaw. string spins but only as strong as the engine revs. I put a new carburetor on and then took the clutch off and still have the same problem.I'm stumped. it is a shindaiwa t242 spin trimmer

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Ryobi gas string trimmer won't run

I have a RYobi SS30 and it will not run at all. I have pulled the cord about a hundred times, yes after about 10 I should have gotten the picture, but if anyone knows what to do to correct this I would appreciate this. I am not very mechanically inclined so any help would be appreciated

Posted on Sep 28, 2008

StickyBeets
  • 2 Answers

SOURCE: put string on tb425cs troy bilt trimmer

there are two ways to install the string..the cool way is without pulling the inner reel off the trimmer..just leave it in place..cut (2) approx.two arms length (thats spreading your arms out like airplane wings) of .095 string..now, align the arrow of the inner reel (it turns counter clock-wise..the arrow points outward) with the arrow on the outer spool (pointing inward)..holding the spool and reel together so the inner reel doesnt move, push one of the cut strings through the eyehole in the side of the outer spool, and it should come up to the right, through a slot next to a small round hole the diameter of the string..if it doesnt, it just missed the exit (as i call it)..pull out and try again..let about an inch come thru..now take that end of the string and push the line into the little round hole until it stops, which should be about a little more than 1/8 of an inch..hold it in while pulling the excess line outside the spool to keep it in place..now do the same with the other string for the other side..once you have both lines in place, turn the inner reel counter clock-wise to draw in both lines through the eyeholes of the outer spool..you may or may not get all of the line to wind in..not a problem..you will still have enough to do what you need to do..just cut off the rest..one problem you may or may not have that i do most of the tyme is that it gets hard to turn the inner reel..one solution is to bump the top of the 'bump knob' with your fist, then pull both strings at the same tyme, then continue to turn..this method is quicker and easier than the second way of having the inner reel out and trying to wind both lines at the same tyme and trying to place the reel back in the spool..hope this works for you...

Posted on May 19, 2009

#1 Taper
  • 1040 Answers

SOURCE: engine starts finem, but will not reach fill RPM.

Check the fuel lines for cracks/breaks. If they are o.k., then:

You will need to disassemble the carburetor and spray with carb.cleaner. Make sure the small screen is free of debris.(Should be able to see daylight 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, just let me know.

Jim

Posted on Jun 28, 2009

moretons
  • 155 Answers

SOURCE: Troy-Bilt TB425CS trimmer hard to start, won't accelerate

Hi the key is moulded as part of the flywheel on most machines these days which doesent take much to sheer off , By the sounds of it this may well be your problem.

Posted on Sep 08, 2009

  • 63 Answers

SOURCE: TB465SS trimmer won't rev up

change spark plug and check the gap between points

Posted on Jul 24, 2010

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