Register free!

The Green Industry's Resource Center



Reply
 
Thread Tools   Display Modes
  #1  
Old 05-11-2009, 10:11 AM
Knight511 Knight511 is offline
LawnSite Member
 
Join Date: Mar 2009
Location: North Texas
Posts: 207
Echo trimmer problem SRM-230

My Echo SRM-230 is having major issues. The engine starts and idles fine. When you pull the trigger to throttle up, the engine barely revs and blows more smoke than normal. It is useless for the work. I have gotten around this because I swapped my engine from my edger (same engine) over to the trimmer, but I still want to fix it. I have checked the compression on the engine (fine) and taken the trimmer apart to check to make sure the magnetic pick up for the ignition is clean (it was).

Has anyone run into the problem on a trimmer not spooling up to full trimming speed? Any ideas as to what it could be?

I have thought it may be the ignition module itself, but would like a little confirmation before i start throwing money at the thing (if it is hopeless, I will just replace it).

If all you have to say is "that trimmer is crap, buy XXX brand instead" like so many help threads turn into, please move along... nothing to see here.
Reply With Quote
  #2  
Old 05-11-2009, 10:25 AM
Charles's Avatar
Charles Charles is online now
Moderator
 
Join Date: Dec 1999
Posts: 7,168
Could be the fuel filter, muffler screen clogged, piston scratched(if not 89 octane fuel--likely), carb could have dirt in it, water in fuel, spark plug, cooling vents clogged
Reply With Quote
  #3  
Old 05-11-2009, 10:32 AM
Knight511 Knight511 is offline
LawnSite Member
 
Join Date: Mar 2009
Location: North Texas
Posts: 207
I did move this to the repair forum.... I don't know how I have missed that sub forum for so long, but I have never seen it... just found it while searching for my problem...

Fuel - My Honda mower requires 89, so all of my equipment gets 89.
Mix - Very careful while mixing the oil gas for the right amount.
Spark arrestor - cleaned and then replaced (no change)
Carb - Cleaned and then swapped between the mower edger (no change)
Spark plug/air filter/fuel filter - All change regularly and after the problem start (no change)
Fuel - tank has been drained and refilled; no water in fuel (no change)
Spark plug - cleaned, gapped, replaced, gapped (no change)
"Scratched" piston - no foreign debris have been in the cylinder and the compression is fine... so the piston is not crack and the rings and ring lands are still functioning properly

The thing that makes this pretty annoying is that when I swapped the carb from my 230 series engine on my edger, I thought that would fix it for sure after reading about so many problems with the needles and dirt in the carb... then when I started it up, the engine ran the exact same. And that is what made me think it could be electrical.
Reply With Quote
  #4  
Old 05-11-2009, 10:57 PM
Breezmister's Avatar
Breezmister Breezmister is offline
LawnSite Bronze Member
 
Join Date: Jul 2007
Location: South Jersey
Posts: 1,207
Quote:
Originally Posted by Knight511 View Post
And that is what made me think it could be electrical.
let me throw my two cents in here. I don't think your problem is electrical...but I did have a Shindawa that had bad wires coming from the throttle back to the engine. One of them was cracked, and every time you applied power, the trimmer would vibrate a little which caused the wire to rub against the side of the engine and ground out....

I think you have an air leak some where. When you had the carb off, did you take the insulator off and clean the pulse port hole ? It runs through the insulator, in to the cylinder. I use a piece of a coat hanger to clean them out. Also, if you take the insulator off, make sure that the end that goes up against the cylinder is flat/square. I have seen them warp. Also, check to see if the bolts/nuts that hold the cylinder on are tight and there is no liquid/dampness (oily) any where around that base. Lastly, the seals, if you have any dampness (oily) behind the recoil starter or the fly wheel, those seals should be replaced....

Good Luck
__________________
.
Masters Degree in Thinking Out Side Of The Box,Graduate of the MacGyver Institute of Ingenuity

The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic

RTFM What a concept

Reply With Quote
  #5  
Old 05-11-2009, 10:25 AM
ALC-GregH's Avatar
ALC-GregH ALC-GregH is offline
LawnSite Fanatic
 
Join Date: Mar 2008
Location: PA
Posts: 7,053
Could it be the mix is too rich? The ignition module shouldn't do that. When they're bad, they don't work. Also the needle settings could have been changed. Did you try to clean the carb up? It could have dirt in the needle/seat area making it dump fuel.
Reply With Quote
  #6  
Old 05-11-2009, 10:39 AM
Knight511 Knight511 is offline
LawnSite Member
 
Join Date: Mar 2009
Location: North Texas
Posts: 207
thanks for the move
Reply With Quote
  #7  
Old 05-11-2009, 03:37 PM
topsites topsites is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: Richmond Virginia
Posts: 21,677
Well it's been 4 years, my srm-260s sat all that time...
It wouldn't run right.
Finally I got it.

Took many, many hours.
Was it worth it, you decide.

Spark plug, air filter, fuel filter for starters.
Totally cleaned the carb, I may have even replaced it but it's been so long, and like yourself, no change.
De-carboned the exhaust port itself, unfortunately in the process of removing the muffler I ruined it
and had to replace it, lo and behold did you know a Stihl muffler fits on an Echo?
Good thing, I had an FS-85 sitting around that's broken, use it for parts.

(On another note, the FS-85's coil works on an FS-100rx, although it did require some delicate modifications).

But, all the same, it ran crappy if at all, I even tried running it without the muffler so I was sure it wasn't clogged.
Other than some sparklies and a lot of noise thou, it still didn't run right.
After this it must've sat another 6-12 months.

Then I had to twist some arms at the dealership to get them to send me...
No, wait, how was this?
Oh yeah, I had to PAY them to replace the coil so that I could get a free one under
Echo's lifetime coil warranty, only way they said it could be attested that it was bad.
(Indeed, of course, it was).

New coil and all, it would run great for a bit and then get crappy again, so I made an adjustment and then it wouldn't run at all.
After that I about lost all hope, this was 2-3 years ago.

What did I learn?
NEVER throw it away, so I kept it.

Two days ago, as one learns things over the years.
I decided to check the coil's gap between that and the magneto.
I didn't even have to check, just looking at it I could see a LOT of air there.
Bastards didn't gap the coil proper, or maybe I messed it up?

Anyhow, after re-gapping the (new) coil it works.
Runs like it did first day.

Last edited by topsites; 05-11-2009 at 03:46 PM.
Reply With Quote
  #8  
Old 05-11-2009, 07:06 PM
Knight511 Knight511 is offline
LawnSite Member
 
Join Date: Mar 2009
Location: North Texas
Posts: 207
Crap... No privatemessages here...

That sounds promising. Did you set the gap to aan actual measurement or did you just "eye ball" it?
Reply With Quote
  #9  
Old 05-11-2009, 08:59 PM
ed2hess's Avatar
ed2hess ed2hess is online now
LawnSite Fanatic
 
Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 11,851
Well did you replace the fuel filter and breather? And did you check to see if the ports are clean. Any sign of fuel leakage anywhere like head gasket or the crank seals? And when you took the carb off did you run a wire into the hole inthe gasket that vents fuel into the cyclinder?
Reply With Quote
  #10  
Old 05-11-2009, 10:22 PM
Knight511 Knight511 is offline
LawnSite Member
 
Join Date: Mar 2009
Location: North Texas
Posts: 207
Quote:
Originally Posted by ed2hess View Post
Well did you replace the fuel filter and breather? And did you check to see if the ports are clean. Any sign of fuel leakage anywhere like head gasket or the crank seals? And when you took the carb off did you run a wire into the hole inthe gasket that vents fuel into the cyclinder?
Did you bother to read the thread before responding? We have covered all of this
Reply With Quote
Reply

Tags
echo , srm-230 , throttle , trimmer

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 05:17 PM.

Page generated in 0.10660 seconds with 7 queries