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Re: I am jinxed!
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Bob Hobden
Mar 24, 2017, 4:41:47 PM3/24/17
to
On 24 Mar 2017 19:15, Chris Hogg wrote:
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
> In its place I bought a 2-stroke Titan multi-tool set from our local
> Screwfix (AIUI Titan is Screwfix' own brand of tools). Been using it
> off and on last autumn for hedge cutting and more recently taking back
> an overgrown shrub. But today, taking advantage of the dry spell, out
> brush-cutting a large patch of brambles and young blackthorn growth,
> it died. It was getting low on petrol (2-stroke mix) so I refilled the
> tank, and fired it up. Started OK, but as soon as I opened the
> throttle, it died. Did it repeatedly. Exactly the same fault as the
> Ryobi, even though the Titan is a 2-stroke, the Ryobi was a 4-stroke.
> Checked the air filter and the plug, but nothing amiss there. Grrr!
>
> It's still under guarantee, so I'm reluctant to strip it down any
> further. I'll just take it back to Screwfix early next week.
>
> Grrr again!
>
> --
>
> Chris
>
> Gardening in West Cornwall overlooking the sea.
> Mild, but very exposed to salt gales
>
Sounds like dirty fuel, or just old fuel.
--
Regards
Bob Hobden
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
> In its place I bought a 2-stroke Titan multi-tool set from our local
> Screwfix (AIUI Titan is Screwfix' own brand of tools). Been using it
> off and on last autumn for hedge cutting and more recently taking back
> an overgrown shrub. But today, taking advantage of the dry spell, out
> brush-cutting a large patch of brambles and young blackthorn growth,
> it died. It was getting low on petrol (2-stroke mix) so I refilled the
> tank, and fired it up. Started OK, but as soon as I opened the
> throttle, it died. Did it repeatedly. Exactly the same fault as the
> Ryobi, even though the Titan is a 2-stroke, the Ryobi was a 4-stroke.
> Checked the air filter and the plug, but nothing amiss there. Grrr!
>
> It's still under guarantee, so I'm reluctant to strip it down any
> further. I'll just take it back to Screwfix early next week.
>
> Grrr again!
>
> --
>
> Chris
>
> Gardening in West Cornwall overlooking the sea.
> Mild, but very exposed to salt gales
>
Sounds like dirty fuel, or just old fuel.
--
Regards
Bob Hobden
Dan S. MacAbre
Mar 24, 2017, 8:13:46 PM3/24/17
to
Chris Hogg wrote:
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
> In its place I bought a 2-stroke Titan multi-tool set from our local
> Screwfix (AIUI Titan is Screwfix' own brand of tools). Been using it
> off and on last autumn for hedge cutting and more recently taking back
> an overgrown shrub. But today, taking advantage of the dry spell, out
> brush-cutting a large patch of brambles and young blackthorn growth,
> it died. It was getting low on petrol (2-stroke mix) so I refilled the
> tank, and fired it up. Started OK, but as soon as I opened the
> throttle, it died. Did it repeatedly. Exactly the same fault as the
> Ryobi, even though the Titan is a 2-stroke, the Ryobi was a 4-stroke.
> Checked the air filter and the plug, but nothing amiss there. Grrr!
>
> It's still under guarantee, so I'm reluctant to strip it down any
> further. I'll just take it back to Screwfix early next week.
>
> Grrr again!
>
If the plug is wet with fuel when you take it out, then there is no
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
> In its place I bought a 2-stroke Titan multi-tool set from our local
> Screwfix (AIUI Titan is Screwfix' own brand of tools). Been using it
> off and on last autumn for hedge cutting and more recently taking back
> an overgrown shrub. But today, taking advantage of the dry spell, out
> brush-cutting a large patch of brambles and young blackthorn growth,
> it died. It was getting low on petrol (2-stroke mix) so I refilled the
> tank, and fired it up. Started OK, but as soon as I opened the
> throttle, it died. Did it repeatedly. Exactly the same fault as the
> Ryobi, even though the Titan is a 2-stroke, the Ryobi was a 4-stroke.
> Checked the air filter and the plug, but nothing amiss there. Grrr!
>
> It's still under guarantee, so I'm reluctant to strip it down any
> further. I'll just take it back to Screwfix early next week.
>
> Grrr again!
>
spark. Maybe damp ht leads at this time of year, so WD40 required.
David
Mar 25, 2017, 7:29:11 AM3/25/17
to
filler cap.
Enough air for tick over but when you apply serious suck by opening the
throttle the air just won't flow fast enough.
Easy check for this is to run it with the fuel cap off (if you can do this
safely).
HTH
Dave R
--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64
---
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Dan S. MacAbre
Mar 25, 2017, 1:26:54 PM3/25/17
to
Chris Hogg wrote:
> fades/dies when the throttle is opened more than about a third of the
> way.
>
> Despite my reservations, I'm going to explore Bob Hobden's suggestion
> of a fuel problem, because another factor common to both machines is
> the fuel, at least the petrol component, because that is what I used
> to make up the 2-stroke mix. Doesn't account for why this machine has
> worked perfectly well on that fuel for the last few months and for
> half-an-hour yesterday before dying, but I'll get fresh fuel in a
> clean container, drain and wash out the tank on the strimmer, run it
> on tick-over until it's used up all the fuel in the carb and fuel
> lines, refill with fresh, and keep my fingers crossed.
>
I think no fuel, then. If fuel is available, the plug should be wet if
it's not burnt off. OTOH, if the engine runs long enough to get hot, it
may just be evaporating before you get a chance to look at it. How old
is your two-stroke mix? Maybe the petrol has evaporated somehow, and
it's mostly oil? Mind you, once it's running on that, it should be okay.
> On Sat, 25 Mar 2017 00:13:44 +0000, "Dan S. MacAbre" <n...@way.com>
> wrote:
>
>>
>> If the plug is wet with fuel when you take it out, then there is no
>> spark. Maybe damp ht leads at this time of year, so WD40 required.
>
> Plug dry on inspection. Strimmer starts OK and idles OK, but
> wrote:
>
>>
>> If the plug is wet with fuel when you take it out, then there is no
>> spark. Maybe damp ht leads at this time of year, so WD40 required.
>
> fades/dies when the throttle is opened more than about a third of the
> way.
>
> Despite my reservations, I'm going to explore Bob Hobden's suggestion
> of a fuel problem, because another factor common to both machines is
> the fuel, at least the petrol component, because that is what I used
> to make up the 2-stroke mix. Doesn't account for why this machine has
> worked perfectly well on that fuel for the last few months and for
> half-an-hour yesterday before dying, but I'll get fresh fuel in a
> clean container, drain and wash out the tank on the strimmer, run it
> on tick-over until it's used up all the fuel in the carb and fuel
> lines, refill with fresh, and keep my fingers crossed.
>
I think no fuel, then. If fuel is available, the plug should be wet if
it's not burnt off. OTOH, if the engine runs long enough to get hot, it
may just be evaporating before you get a chance to look at it. How old
is your two-stroke mix? Maybe the petrol has evaporated somehow, and
it's mostly oil? Mind you, once it's running on that, it should be okay.
David
Mar 25, 2017, 3:33:28 PM3/25/17
to
On 25/03/2017 19:05, Chris Hogg wrote:
> You may be right about a hot plug drying before I could get it out of
> the block. The fuel itself seems OK. I've no reason to think there's
> been any evaporation. It's been stored in a gallon steel can since it
> was made up in November, and the tank on the strimmer was filled from
> that can about a month ago. The petrol itself, without the oil, powers
> a mower OK.
>
> I've just bought fresh petrol, in a new can, so I can make up fresh
> mix in a day or two. But before that, I'll explore David's suggestion
> of a blocked breather in the filler cap.
>
I would remove the tank and flush it out then check the filter and pipe
to make sure they are clean.
I have had problems like yours when there has been a little dirt in the
tank that has partially clogged the filter, so that it could take up
enough fuel for slow running but insufficient when running at full speed.
David@a springlike side of Swansea Bay
> the block. The fuel itself seems OK. I've no reason to think there's
> been any evaporation. It's been stored in a gallon steel can since it
> was made up in November, and the tank on the strimmer was filled from
> that can about a month ago. The petrol itself, without the oil, powers
> a mower OK.
>
> I've just bought fresh petrol, in a new can, so I can make up fresh
> mix in a day or two. But before that, I'll explore David's suggestion
> of a blocked breather in the filler cap.
>
I would remove the tank and flush it out then check the filter and pipe
to make sure they are clean.
I have had problems like yours when there has been a little dirt in the
tank that has partially clogged the filter, so that it could take up
enough fuel for slow running but insufficient when running at full speed.
David@a springlike side of Swansea Bay
Bob Hobden
Mar 25, 2017, 6:07:30 PM3/25/17
to
on a very light throttle but open it up and it died. In that case it
was a worn out fuel pump.
--
Regards
Bob Hobden
Dan S. MacAbre
Mar 25, 2017, 6:16:46 PM3/25/17
to
Chris Hogg wrote:
seems a strange thing to happen, but sometimes the spark 'collapses
under compression'. Maybe due to a duff condenser or coil. But we're
talking old tech there, from when I was a lad.
> You may be right about a hot plug drying before I could get it out of
> the block. The fuel itself seems OK. I've no reason to think there's
> been any evaporation. It's been stored in a gallon steel can since it
> was made up in November, and the tank on the strimmer was filled from
> that can about a month ago. The petrol itself, without the oil, powers
> a mower OK.
>
> I've just bought fresh petrol, in a new can, so I can make up fresh
> mix in a day or two. But before that, I'll explore David's suggestion
> of a blocked breather in the filler cap.
>
A £5 spark indicator is a nice thing to have. I don't know why, and it
> the block. The fuel itself seems OK. I've no reason to think there's
> been any evaporation. It's been stored in a gallon steel can since it
> was made up in November, and the tank on the strimmer was filled from
> that can about a month ago. The petrol itself, without the oil, powers
> a mower OK.
>
> I've just bought fresh petrol, in a new can, so I can make up fresh
> mix in a day or two. But before that, I'll explore David's suggestion
> of a blocked breather in the filler cap.
>
seems a strange thing to happen, but sometimes the spark 'collapses
under compression'. Maybe due to a duff condenser or coil. But we're
talking old tech there, from when I was a lad.
Ermin Trude
Mar 26, 2017, 4:57:45 AM3/26/17
to
On Sat, 25 Mar 2017 22:16:44 +0000, Dan S. MacAbre wrote:
> Chris Hogg wrote:
>> been any evaporation. It's been stored in a gallon steel can since it
>> was made up in November, and the tank on the strimmer was filled from
>> that can about a month ago. The petrol itself, without the oil, powers
>> a mower OK.
Always use a fresh mixture as well as (reasonably) fresh petrol. Any mix
not used can be used up in the lawnmower IME.
> under compression'. Maybe due to a duff condenser or coil. But we're
> talking old tech there, from when I was a lad.
Condenser/coil does seem quite likely. But with an old fuel mix being
used its also worth checking the carb properly. Maybe buy some 'mechanic
in a can' stuff as used by my local service agent - he used some on a
similarly recalcitrant leaf blower when I had problems blowing some snow
away in the winter - similar thing - started and ran on low speed but as
soon as I increased the power it cut out.
I think it may have been you (Chris) who recommended uk-diy to me a while
back - try them also.
> Chris Hogg wrote:
>> been any evaporation. It's been stored in a gallon steel can since it
>> was made up in November, and the tank on the strimmer was filled from
>> that can about a month ago. The petrol itself, without the oil, powers
>> a mower OK.
not used can be used up in the lawnmower IME.
>>
>> I've just bought fresh petrol, in a new can, so I can make up fresh mix
>> in a day or two.
Only mix what you need and don't store any.
>> I've just bought fresh petrol, in a new can, so I can make up fresh mix
>> in a day or two.
> under compression'. Maybe due to a duff condenser or coil. But we're
> talking old tech there, from when I was a lad.
used its also worth checking the carb properly. Maybe buy some 'mechanic
in a can' stuff as used by my local service agent - he used some on a
similarly recalcitrant leaf blower when I had problems blowing some snow
away in the winter - similar thing - started and ran on low speed but as
soon as I increased the power it cut out.
I think it may have been you (Chris) who recommended uk-diy to me a while
back - try them also.
David
Mar 26, 2017, 6:26:46 AM3/26/17
to
I now use a funell with a bit of old tights over to filter all the fuel
I put into machines, catches dirt and any water that may have got in.
Chris Green
Mar 26, 2017, 10:48:03 AM3/26/17
to
Chris Hogg <m...@privacy.net> wrote:
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
It's a very common problem on Ryobi 4-stroke engines. The fix is
> Last year I had problems with a Ryobi 4-stroke strimmer/hedge cutter.
> After not too much use, and not long out of guarantee (of course!), it
> would start and tick-over OK, but the moment you opened the throttle,
> it died. I checked the obvious, but eventually took it to a local chap
> who serviced garden machinery. He spent quite a lot of time on it,
> checking jets, replacing diaphragms etc, but he couldn't cure the
> fault, so eventually I abandoned it.
>
simply to get the 'pacman' tool you need to adjust the mixture and
make the high speed/running mixture a little richer. The adjustment
tends not to be permanent.
A google search for ryobi 4-stroke (or 4-cycle) will bring up lots of
hits.
--
Chris Green
·
grcr...@gmail.com
Jan 30, 2020, 10:52:14 PM1/30/20
to
Magneto fly wheel needs cleaning & sprayed with wd40, common fault, cover engine with a oily cloth when not in use
Jeff Layman
Jan 31, 2020, 3:00:17 AM1/31/20
to
On 31/01/20 03:52, grcr...@gmail.com wrote:
> Magneto fly wheel needs cleaning & sprayed with wd40, common fault, cover engine with a oily cloth when not in use
From a thread in March 2017.
> Magneto fly wheel needs cleaning & sprayed with wd40, common fault, cover engine with a oily cloth when not in use
Do you recognise it Chris?! :-)
--
Jeff
war...@hotmail.co.uk
Feb 1, 2020, 12:20:12 PM2/1/20
to
On Sunday, 26 March 2017 09:57:45 UTC+1, Ermin Trude wrote:
> On Sat, 25 Mar 2017 22:16:44 +0000, Dan S. MacAbre wrote:
>
> > Chris Hogg wrote:
> >> been any evaporation. It's been stored in a gallon steel can since it
> >> was made up in November, and the tank on the strimmer was filled from
> >> that can about a month ago. The petrol itself, without the oil, powers
> >> a mower OK.
>
> Always use a fresh mixture as well as (reasonably) fresh petrol. Any mix
> not used can be used up in the lawnmower IME.
I have a two stroke hedge cutter that I use about three times a year and I have never in twenty years had a problem with old fuel.
> On Sat, 25 Mar 2017 22:16:44 +0000, Dan S. MacAbre wrote:
>
> > Chris Hogg wrote:
> >> been any evaporation. It's been stored in a gallon steel can since it
> >> was made up in November, and the tank on the strimmer was filled from
> >> that can about a month ago. The petrol itself, without the oil, powers
> >> a mower OK.
>
> Always use a fresh mixture as well as (reasonably) fresh petrol. Any mix
> not used can be used up in the lawnmower IME.
Jonathan
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