The curved shaft machine has a flexible drive shaft like a speedo cable, slacken the two tube pinch bolts, these are accessed on the r/h side of the grey plastic handle through holes in the plastic housing,, remove the two mushroom headed screws either side of the plastic handle,don't lose the black o rings under the screw heads, do not remove any of the plastic housing screws, now carefully draw the tube out through the plastic handle/trigger assembly, once out pull out the old drive shaft, grease the new drive shaft and push back into the tube, once fully in turn the end to make sure the trimmer head turns, now feed the tube back through the trigger housing, make sure it is fully back home and the square end of the new shaft has entered the square hole in the drive drum, re tighten the pinch bolts, start the engine, if the head does not turn, slacken the pinch bolts and push the tube further in, re fit the two mushroom headed screws.
SOURCE: fuel hoses routed wrong on weed eater fuel tank
http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=358795190&productCategoryId=1503820&brandId=0247&modelName=TRIMMER&diagramPageId=00002&componentDescription=CYLINDER/FAN%20HOUSING/CRANKCASE&documentId=P0303202&backToLink=Return%20to%20Sub%20Components%20list
SOURCE: Pull Cord won't pull on model TB525CS
Hi try this web site its called pats small engines shows exploded view
SOURCE: lost manual for troy bilt weed eater mod#tb514cs 4cycle
I didn't find that exact one either, but recently had to work on my Yard Man 4-Cycle Straight Shaft and used a Troy-Bilt manual for a similar trimmer - worked great.
If you don't find yours at this site, maybe a similar one will work. It looks like the difference is the TB525 receives attachments. If you're trying to fix something right now, here's the manual for that one until you find yours:
http://lawnandgarden.manualsonline.com/manuals/mfg/troybilt/big_red_tb575ss.html
SOURCE: what is the oil to gas ratio for the husqvarna
Most trimmers use a 40:1 ratio on fuel mixture. Check the gas tank on your trimmer, as some manufacturers label it as an imprint in the plastic tank itself.
Hope this helps,
Chip
SOURCE: I have a RYOBI weed eater model ss30. I can get
Check your fuel filter in the fuel tank,if you have one it may need cleaning or replacement.
If the mower/weedeater is over a year old, then I recommend that you buy
and install a new carburetor repair kit,because the diaphragm will get hard
and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor
internal rubber parts like the diaphgram and O rings.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small
rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid
and letting it run a few times like that and it will flush the gunk out of
the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float for the carburetor must be level when you go to
reassemble the carburetor or follow the instructions you get with the
carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need
to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes
to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first
and then turn them back out to their orginal position before you started.
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