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Ryobi Strimmer - Carburetor

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  • 12-04-2014 4:20pm
    #1
    [Deleted User]
    Posts: 0 ✭


    Hi, not sure where to post this but hope that someone will be able to help me identify the Idle Mixture Screw on this 1992 Ryobi Strimmer (RCT 2800) carburetor. You'll see the actual and the diagram in the manual don't match, hence my (minor but meaningful!) dilemma. The screw that's at the top has a letter L stamped on the body of the carb, the lower on has H. Not sure what that means either

    I'm assuming that the one on its own on the right is the idle speed screw, even though it doesn't touch the throttle lever

    It may be old, but there's life in it yet!!

    Any help welcome

    Thanks

    RyobiCarb.jpg

    Ryobimanual.jpg


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    #2
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,323 Mod ✭✭✭✭fergal.b


    I'm guessing the L is for low idle and the H for high same as on an old outboard engine.
    It should be something like this to setup.





    .


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    #3
    CJhaughey
    Registered Users Posts: 14,906 ✭✭✭✭CJhaughey


    L is low speed jet/Idle
    H is high speed jet

    Whats wrong with it?


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    #4
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    CJhaughey wrote: »
    Whats wrong with it?

    Thank you - I can't get it to start after the winter so I thought I'd start from scratch with a setup.


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    #5
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    fergal.b wrote: »
    I'm guessing the L is for low idle and the H for high same as on an old outboard engine.
    It should be something like this to setup.

    Thanks, it's very similar to the carb on my strimmer, which is also a 31cc motor. I'll give it a go

    Thanks again


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    #6
    nedsgarden
    Registered Users Posts: 76 ✭✭nedsgarden


    On the same topic. My chainsaw (Topsun) would not start - or would and run like mad and then stop. I searched for as much info. as i could and now have this problem.

    Now starting and idling fine, however runs for about 2 mins then starts snorting when throttled - within the 2 mins will cut fine .

    any ideas ?

    i believe it is carb. related.


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    #7
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,323 Mod ✭✭✭✭fergal.b


    If you have already adjusted the screws and it's not running set the low idle screw 1/2 to 3/4 turn up from seated and the high 1 1/2 to 1 3/4 and that should get it started and you can fine-tune from there.




    .


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    #8
    nedsgarden
    Registered Users Posts: 76 ✭✭nedsgarden


    fergal.b wrote: »
    If you have already adjusted the screws and it's not running set the low idle screw 1/2 to 3/4 turn up from seated and the high 1 1/2 to 1 3/4 and that should get it started and you can fine-tune from there.




    .

    Thanks Fergal

    Will try Monday.


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    #9
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,323 Mod ✭✭✭✭fergal.b


    nedsgarden wrote: »
    Thanks Fergal

    Will try Monday.

    Ooops sorry that answer was for robert6920 I'm not sure what carb you have but it might be worth a try :)





    .


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    #10
    bigroad
    Registered Users Posts: 4,055 ✭✭✭bigroad


    The way i start my chainsaw after the winter.Take air filter off and drop a few drips of petrol down the little carb.Put back together give it full choke and full power and start or pull.Works everytime.


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    #11
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    fergal.b wrote: »
    If you have already adjusted the screws and it's not running set the low idle screw 1/2 to 3/4 turn up from seated and the high 1 1/2 to 1 3/4 and that should get it started and you can fine-tune from there.
    .
    Thanks Fergal, I haven't touched them - yet - but as it wouldn't start, I thought I might go back to basics. I might try the "drop of petrol" approach that bigroad uses first -
    bigroad wrote: »
    The way i start my chainsaw after the winter.Take air filter off and drop a few drips of petrol down the little carb.Put back together give it full choke and full power and start or pull.Works everytime.
    although I have no trouble at all starting the chainsaw after it's been laid up a while! The strimmer is more of a cantankerous little devil


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