Lifespan of weedwacker

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So how many hours SHOULD you expect out of a commercial Stihl fs90r unit? Both our echo srm-225's blew in a year, and our Stihl fs45 lasted 3 1/2. It was only a backup but used everyday up to an hour so I need something that will last us longer.
 
Used an hour per day, so like, 200 hours a year?

Seems awful short, and if two failed, I have to wonder about user error.
 
One thing I notice with people running weedeaters: they run then WOT all the time.

For me, a small blip above idle is all that's needed.
 
The problem we found out from the dealer (who helped us out) was the srm-225 wasn't for commercial use. We used the srm's April-September when both went up. The problem was the piston was scorched. They said it was not from our gas-oil mix, rather the high rpm we used it at consistently. But our fs-45 lasted 3 1/2 years under those conditions so who knows.
 
Originally Posted By: Phishin
One thing I notice with people running weedeaters: they run then WOT all the time.

For me, a small blip above idle is all that's needed.
I was always under the impression 2 cycle engines are designed to be run at WOT.
 
Originally Posted By: xxch4osxx
Originally Posted By: Phishin
One thing I notice with people running weedeaters: they run then WOT all the time.

For me, a small blip above idle is all that's needed.
I was always under the impression 2 cycle engines are designed to be run at WOT.


Me too, I have chainsaws that are over 10 years old, Always WOT of course.
 
Originally Posted By: lawman1909
The problem we found out from the dealer (who helped us out) was the srm-225 wasn't for commercial use. We used the srm's April-September when both went up. The problem was the piston was scorched. They said it was not from our gas-oil mix, rather the high rpm we used it at consistently. But our fs-45 lasted 3 1/2 years under those conditions so who knows.



sounds like a company not standing behind their product.
 
I just bought a new Stihl FS 130R for $400.00.
Traded in a four year old
FS 110 and got $250.00 for it . Before that I had a FS 90 . No problems with any of them what so ever. Doesn't really matter the brand you buy. Get a Speedfeed head for it .
Highly recommended
 
Originally Posted By: 97prizm
They are designed to be used at wot all the time.


LOL!!

You telling me if you have two identical engines with unlimited fuel tanks, one running at 1800 RPM's....the other at 11,000 RPM's.....the WOT engine outlives the other?

Really?
 
My #cho 2601 is 15 years old, the first 7 years it was used commercially. Minimum 20 hours a week 30 weeks a year. For the last 8 years it is used 15 minutes a week 30 weeks a year. Still starts pretty easy and literally had to adjust the carb for the first time last year. Had to clean out the carbon from the exhaust port once. Change the air filter once every couple of years now, back when it was used hard maybe twice a year. Thats it. It still runs but you can tell she is tired. It is usually used at around 50-70% throttle. My Stihl BR400 blower is just as old and has seen similar usage and still starts and runs good. No idea why yours are living such a short life. Check the plugs, the fuel filter, carb, exhaust port. Keep them all maintained and they should run for a decade imho.
 
I know my echo Pro-sumer grade(forget model) got bad deposits when I didnt rev it enough. Started winding it up more.. never had a problem again with it for years.
 
Originally Posted By: Phishin
One thing I notice with people running weedeaters: they run then WOT all the time.

For me, a small blip above idle is all that's needed.


WOT with too little string - the screaming chorus of Saturday mornings in these parts.
 
I have a 13-15 year old Echo SRM 2400. I've been using synthetic 2-cycle oil for a bit. RUns like it was new. Not in commercial application but it gets a lot of use for a homeowner. I'll be sad when it goes. The newer versions look cheap.
 
Originally Posted By: Phishin
Originally Posted By: 97prizm
They are designed to be used at wot all the time.


LOL!!

You telling me if you have two identical engines with unlimited fuel tanks, one running at 1800 RPM's....the other at 11,000 RPM's.....the WOT engine outlives the other?

Really?


There is a misperception here...running a 2 cycle engine at WOT will minimize carbon buildup because it burns more completely. Of course it results in more engine wear than part throttle because of the increased duty cycle.
 
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I can't speak for the little hand held trimmers, but my DR trimmer is getting close to 15 years old and the only things I do to it are change the oil and string. It still runs just fine.

Originally Posted By: Phishin
Originally Posted By: 97prizm
They are designed to be used at wot all the time.


LOL!!

You telling me if you have two identical engines with unlimited fuel tanks, one running at 1800 RPM's....the other at 11,000 RPM's.....the WOT engine outlives the other?

Really?


No. If you were to use both reading and comprehension skills you'd understand that he didn't say that. He said that they were designed to run at wide open throttle, he didn't say anything about the longevity of the engines when they were used as designed.

And by the way-my DR trimmer runs at full throttle every time I use it. My chainsaw runs at wide open throttle every time I use it. My pressure washer runs at wide open throttle every time I use it. My mower runs at wide open throttle every time I use them.

They are all designed to do so.
 
I have had a 4 stroke MTD/Ryobi for 6 years now,and runs great.Have all sorts of attachments too....trimmer,200 mph blower,leaf vacuum/shredder,pole saw...
 
I have a 1991 Shindaiwa T-27 still going strong.

Work used to have about dozen Shindaiwa T-270 (same as T-27 just newer). Approx. 6-8 ran everyday during the summer. Average life was about 5 yrs.

I am not up on the new models and don't know if they are still as good.
 
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