Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #11  
Old 07-13-2013, 08:18 AM
Yuanding Yuanding is offline
LawnSite Member
 
Join Date: Jun 2008
Location: England
Posts: 81
Quote:
Originally Posted by dboyd351 View Post
Could be a coil starting to go too. Try testing the spark when cold, then running until it gets hot and starts to cut out, then check for spark while it is still hot.
Another possibility is a loose spark plug. If it's a little loose, it will lose compression as it heats up and won't make power.
Thanks for the tip. I did test for the spark when cold and got a good healthy one; I didn't think of testing when hot, but now that might be a bit difficult as the engine won't run for more than about 30s - a minute. As you and others suggest, the coil could well be a problem as well or instead of the carb.

I've just got another quote from a UK dealer to supply (not fit) a new carb at a cost of £156, that's $235!
And yet in the US this one for example is one fifth the price.
http://www.ebay.co.uk/itm/2009423280...84.m1423.l2649
I don't understand the price difference; if anyone can shed some light on it I'd be interested to know the answer. And the US seller can't guarantee his carb will work on a UK model, so it looks like I'm stuck there.

As to whether Stihl are going down the pan, all i'll say is that in the last year I've had the KM55 go on me, a KM56 (leaking fuel tank, faulty gas cap and coupling that overheated), an HS45 hedge trimmer (crankshaft bearings), and a blower attachment (KM-BG) on which the drive shaft shattered into pieces breaking the aluminium sleeve into which it inserts right in two. Why Stihl couldn't make the sleeve out of steel I don't know - maybe they wanted it to break. A dealer told me I shouldn't have been using it commercially as "it's not a commercial grade item", but my answer is it was used only very occasionally, and it's news to me that whilst some of the engines in the Kombi range are billed as commercial grade (e.g. KM130R, which I've got) some of the attachments are not. I don't see anything in the Stihl literature pointing this out.

What I do know is that after using Stihl stuff for nearly thirty years, their durability is not what it was.. I'm seriously toying with going over to Shindaiwa or Echo, but I've not yet researched availability of spare parts here in the UK, or more importantly spare part prices.
Reply With Quote
  #12  
Old 07-13-2013, 11:17 AM
jtsnipe jtsnipe is offline
LawnSite Member
 
Join Date: Jun 2010
Location: Dayton,Ohlo
Posts: 181
Quote:
Originally Posted by Yuanding View Post
Thanks for the tip. I did test for the spark when cold and got a good healthy one; I didn't think of testing when hot, but now that might be a bit difficult as the engine won't run for more than about 30s - a minute. As you and others suggest, the coil could well be a problem as well or instead of the carb.

I've just got another quote from a UK dealer to supply (not fit) a new carb at a cost of £156, that's $235!
And yet in the US this one for example is one fifth the price.
http://www.ebay.co.uk/itm/2009423280...84.m1423.l2649
I don't understand the price difference; if anyone can shed some light on it I'd be interested to know the answer. And the US seller can't guarantee his carb will work on a UK model, so it looks like I'm stuck there.

As to whether Stihl are going down the pan, all i'll say is that in the last year I've had the KM55 go on me, a KM56 (leaking fuel tank, faulty gas cap and coupling that overheated), an HS45 hedge trimmer (crankshaft bearings), and a blower attachment (KM-BG) on which the drive shaft shattered into pieces breaking the aluminium sleeve into which it inserts right in two. Why Stihl couldn't make the sleeve out of steel I don't know - maybe they wanted it to break. A dealer told me I shouldn't have been using it commercially as "it's not a commercial grade item", but my answer is it was used only very occasionally, and it's news to me that whilst some of the engines in the Kombi range are billed as commercial grade (e.g. KM130R, which I've got) some of the attachments are not. I don't see anything in the Stihl literature pointing this out.

What I do know is that after using Stihl stuff for nearly thirty years, their durability is not what it was.. I'm seriously toying with going over to Shindaiwa or Echo, but I've not yet researched availability of spare parts here in the UK, or more importantly spare part prices.
If you can still get the Shindaiwa t230 or t260 in the UK I would look into these.The EPA.shut them down in the USA .
Reply With Quote
  #13  
Old 07-13-2013, 11:40 PM
dboyd351 dboyd351 is offline
LawnSite Senior Member
 
Join Date: Sep 2010
Location: Cape Charles, VA
Posts: 771
For a trimmer, try a husky 223 or 323. My favorite trimmer.
Reply With Quote
  #14  
Old 07-16-2013, 05:07 PM
ChuckPMi ChuckPMi is offline
LawnSite Member
 
Join Date: Jun 2010
Location: Adrian, MI
Posts: 39
<<I did test for the spark when cold and got a good healthy one; I didn't think of testing when hot, but now that might be a bit difficult as the engine won't run for more than about 30s - a minute.>>
You don't need the engine running to test for spark. I have an FS550 that won't start but it has strong spark. http://www.amazon.com/Tool-Aid-23970...rk+plug+tester
Reply With Quote
  #15  
Old 07-16-2013, 05:25 PM
Yuanding Yuanding is offline
LawnSite Member
 
Join Date: Jun 2008
Location: England
Posts: 81
Quote:
Originally Posted by ChuckPMi View Post
<<I did test for the spark when cold and got a good healthy one; I didn't think of testing when hot, but now that might be a bit difficult as the engine won't run for more than about 30s - a minute.>>
You don't need the engine running to test for spark. I have an FS550 that won't start but it has strong spark. http://www.amazon.com/Tool-Aid-23970...rk+plug+tester
Since you generally test for a spark with the plug out (otherwise you can't see the right end of the plug), it'd be a bit difficult to test for it when the engine is running.
Reply With Quote
  #16  
Old 07-16-2013, 05:34 PM
dboyd351 dboyd351 is offline
LawnSite Senior Member
 
Join Date: Sep 2010
Location: Cape Charles, VA
Posts: 771
With this type of inline spark tester
http://www.ebay.com/itm/2-IGNITION-S...f73c72&vxp=mtr
you plug one end into the spark plug cap and the other end fits over the plug, like the original spark plug cap, so you can start the trimmer up with the spark tester plugged in. Then you watch the coil in the tester. If the tester coil begins to lose spark at the same time the trimmer starts to die, you know your coil is bad.
The tester is a whole lot cheaper to buy than the coil and you end up with a good tool even if the coil proves to be OK.

As for the US carb working - for 1/5th the price I'd take my chances, but test the coil first.
Reply With Quote
Reply

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 07:54 AM.

Page generated in 0.07324 seconds with 9 queries