Ryobi 4-cycle - idles but wont run under full throttle

[ERIC]

Hello,

I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
at idle, but when I give it gas (medium-full throttle), it revs for a
few seconds and stalls, unless I let off the gas, then it idles fine
again.

I have:
* cleaned the air filter
* checked the valve clearance
* replaced/gapped the spark plug

Is there anything else I can check that could cause these conditions?

Of the repair shops I have called, no one seems to want to work on
Ryobi's. It is not under warranty any longer. Any help is appreciated.

Thanks,
Eric

[Patch]

"ERIC" <DATAE2000@YAHOO.COM> wrote in message
news:1c9b482c.0401191845.5718cfce@posting.google.c om...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric

Sounds like a mixture problem, maybe a plugged up jet. Have you tried
spraying some cleaner into the carb?

[Patch]

"ERIC" <DATAE2000@YAHOO.COM> wrote in message
news:1c9b482c.0401191845.5718cfce@posting.google.c om...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric

Sounds like a mixture problem, maybe a plugged up jet. Have you tried
spraying some cleaner into the carb?

[Patch]

"ERIC" <DATAE2000@YAHOO.COM> wrote in message
news:1c9b482c.0401191845.5718cfce@posting.google.c om...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric

Sounds like a mixture problem, maybe a plugged up jet. Have you tried
spraying some cleaner into the carb?

[Patch]

"ERIC" <DATAE2000@YAHOO.COM> wrote in message
news:1c9b482c.0401191845.5718cfce@posting.google.c om...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric

Sounds like a mixture problem, maybe a plugged up jet. Have you tried
spraying some cleaner into the carb?

[Chip Stein]

DATAE2000@YAHOO.COM (ERIC) wrote in message news:<1c9b482c.0401191845.5718cfce@posting.google.com>...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric


the screen in the carb is clogged. very common on these. pull it apart and look.
Chip

[Chip Stein]

DATAE2000@YAHOO.COM (ERIC) wrote in message news:<1c9b482c.0401191845.5718cfce@posting.google.com>...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric


the screen in the carb is clogged. very common on these. pull it apart and look.
Chip

[Chip Stein]

DATAE2000@YAHOO.COM (ERIC) wrote in message news:<1c9b482c.0401191845.5718cfce@posting.google.com>...
> Hello,
>
> I have a Ryobi 4 cycle weed trimmer. The engine starts and runs fine
> at idle, but when I give it gas (medium-full throttle), it revs for a
> few seconds and stalls, unless I let off the gas, then it idles fine
> again.
>
> I have:
> * cleaned the air filter
> * checked the valve clearance
> * replaced/gapped the spark plug
>
> Is there anything else I can check that could cause these conditions?
>
> Of the repair shops I have called, no one seems to want to work on
> Ryobi's. It is not under warranty any longer. Any help is appreciated.
>
> Thanks,
> Eric


the screen in the carb is clogged. very common on these. pull it apart and look.
Chip