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ryobi 790

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  1. #1
    ned
    ned is offline
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    Join Date
    Jul 2009
    Posts
    1

    Default ryobi 790

    trying to replace pull rope on trimmer model 790...have taken off top but do not know how to get clutch off..any advice will be appreciated..does this clutch have a screw on the end
    of shaft holding it on?
    Last edited by ned; 07-19-2009 at 04:11 PM. Reason: more info

  2. #2
    Member V0LC0M's Avatar
    Join Date
    Nov 2008
    Location
    Where The Powder Falls
    Posts
    11

    Default Ryobi

    Hi ned! Yeah those can be a pain in the you know what sometimes! But with a little patience you can nail it! After you have taken the top off you will see the clutch drum assembly. In order to disassemble it you will need a old piece of rope and a phillips screw driver.

    Here's what you want to do: take the spark plug out and make sure the piston is all the way down, feed the rope into the spark plug hole until you can't feed any more in. This keeps the motor from turning so you can take out the screw at the end of the shaft.

    Then you take your screwdriver and insert it into the end of the shaft and start unscrewing the screw in a counterclockwise position and before you know it the clutch drum is off! To remove the clutch itself keep the rope in the combustion chamber and take a pair of channel locks and turn it in a counterclockwise rotation. It might take a little oomph, but it will come off!

    Since you're already there, I'd recommend replacing the clutch assembly and drum while you're at it. That way you don't have to take it all apart again a few months down the road when you realize the clutch is starting to wear out as well!

    After you have removed the drum and the clutch you should be able to get to the starter assembly. I have included a link to a video that should help you give you an idea on how this is done. You can purchase all the parts you need from www.ereplacementparts.com. Take extra care when ordering to have the exact model number handy when you're ready to order.

    Here is the link to the video, this is NOT your exact Ryobi trimmer, but it is an excellent reference video to give you an idea of how this is going to come apart! http://www.youtube.com/watch?v=AXW4xEwagso

    Hope this helps

    Patrick
    Last edited by V0LC0M; 08-03-2009 at 11:57 AM.

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