Register free!

The Green Industry's Resource Center



Reply
 
Thread Tools   Display Modes
  #1  
Old 09-18-2013, 10:04 PM
MisterBreeze MisterBreeze is offline
LawnSite Member
 
Join Date: Dec 2010
Location: Union County, NC
Posts: 74
Stihl FS90 needs Short Block

FS-90 has not been running up to potential so I brought it in for service. I was told it needs a short block.......repair cost $325.00

Obviously, it would make no sense to repair for that price, new FS 90 is $299.00

Unit is running, just not as well as it should.

Any ideas how to salvage this trimmer?? Thanks
Reply With Quote
  #2  
Old 09-18-2013, 11:14 PM
herler herler is offline
LawnSite Gold Member
 
Join Date: Apr 2012
Posts: 3,857
Man, I don't mean to break bad on your shop people but I have been fed line of bull after line of bull to the point I don't hardly believe a word they're saying...
And it's possible, they could be right.

How much do you know about engines?

Can you compression test it?
Replace the air filter and spark plug?
Can you adjust the valves?

Those would be the first steps.

Beyond that I'd likely be looking into carburetor, new fuel lines and filter, and ignition coil.
By now you'd be out near $100, DIY

From what you're describing I'd chance it, I mean I'm already all over it if you haven't noticed.

Up to you ...

Nothing else you can keep the parts for your next one, but I think with some tinkering you can get it running good.
What else you might do is buy another as a backup, then you have time to work on it, too.

Last edited by herler; 09-18-2013 at 11:20 PM.
Reply With Quote
  #3  
Old 09-18-2013, 11:22 PM
austins35 austins35 is offline
LawnSite Member
 
Join Date: Aug 2013
Location: Trampsterdamn
Posts: 90
herler is correct shop rates make it cost prohibitive to have the dealer repair your trimmer (hedge, blowers, edges the list goes on)

pull the muffler an check the piston an ring

these Stihl trimmers, and chainsaws are not overly complicated You've got nothing lose tear into it an see what cookin
__________________
HT131, FS80 (4), FS85 (3), FS90R (2), FS110R (3), FS130R (2), FS250 one bike, one loop, FS550 ("aka the Beast"), HL110k (2), FC110 (2), BR420 mag (3), BR600 Mag blowers (3) , 192T (2), 200T (1), MS290, MS261 (2), 660 a beast
880 more saw than anyone in Florida prob needs
Dolmar 7900
Reply With Quote
  #4  
Old 09-19-2013, 11:49 AM
Jeff in AL's Avatar
Jeff in AL Jeff in AL is offline
LawnSite Senior Member
 
Join Date: Jul 2000
Location: Alabama
Posts: 450
Quote:
Originally Posted by austins35 View Post
herler is correct shop rates make it cost prohibitive to have the dealer repair your trimmer (hedge, blowers, edges the list goes on)

pull the muffler an check the piston an ring

these Stihl trimmers, and chainsaws are not overly complicated You've got nothing lose tear into it an see what cookin

The unit as stated is an FS90! It is a 4-STROKE engine! Pulling the muffler will not reveal anything about the piston/rings/cylinder condition!
__________________
Jeff in AL

How very observant of you there captain obvious.

The amount of FREE information that you receive here will be directly proportional to the amount of information that you provide!
Reply With Quote
  #5  
Old 09-19-2013, 08:46 PM
GlynnC GlynnC is offline
LawnSite Senior Member
 
Join Date: Sep 2009
Location: Nashville Tennessee
Posts: 469
Quote:
Originally Posted by Jeff in AL View Post
The unit as stated is an FS90! It is a 4-STROKE engine! Pulling the muffler will not reveal anything about the piston/rings/cylinder condition!
Not much experience with Stihl or 4 mix, but they are still burning a mix. Do they not have exhaust port carbon issues?
Reply With Quote
  #6  
Old 09-19-2013, 08:56 PM
herler herler is offline
LawnSite Gold Member
 
Join Date: Apr 2012
Posts: 3,857
I don't know what to tell you 4-cycle hand tool haters but the longest running tools in my arsenal are ALL 4-cyclers, we're talking 9 years of almost every day use on one... The other's got like 6 years, another 7, I never saw that kind of longevity in the 2-cyclers but you have to get out of a certain mindset that boggles you down into believing what you believe or you'll never come out ahead, like any piece of equipment they do require maintenance a bit beyond pouring gas in the tank, so long this maintenance is performed periodically I have found little problem.

Granted some are brain busters but hey, if you don't want your 4-cyclers I will PAY the shipping to my house (assuming they are whole units with no parts broken or missing).
Reply With Quote
  #7  
Old 09-19-2013, 09:52 PM
Snyder's Lawn Inc's Avatar
Snyder's Lawn Inc Snyder's Lawn Inc is offline
LawnSite Gold Member
 
Join Date: Feb 2011
Location: Kirksville Mo
Posts: 3,715
Quote:
Originally Posted by herler View Post
I don't know what to tell you 4-cycle hand tool haters but the longest running tools in my arsenal are ALL 4-cyclers, we're talking 9 years of almost every day use on one... The other's got like 6 years, another 7, I never saw that kind of longevity in the 2-cyclers but you have to get out of a certain mindset that boggles you down into believing what you believe or you'll never come out ahead, like any piece of equipment they do require maintenance a bit beyond pouring gas in the tank, so long this maintenance is performed periodically I have found little problem.

Granted some are brain busters but hey, if you don't want your 4-cyclers I will PAY the shipping to my house (assuming they are whole units with no parts broken or missing).
I will agree with you, My 2 stokers only last me 3 years. Now my 4 mix last me 4 years. I had one this year was its fourth year and the piston rod broke and screwed it up bad.
If you can get 9 years out one then, I say you don't trim much.

One way to know if you trim a lot is how long does 2.5 gal of fuel last you??

My self Im lucky to get 2 days out of 2.5 gal and that's running 2-3 trimmers
Friday I'll use 2.5 gals on one lawn and that's just trimmers
__________________
Snyder's New Lawn Service Inc.
Since 1981
Reply With Quote
  #8  
Old 09-19-2013, 09:56 PM
Jeff in AL's Avatar
Jeff in AL Jeff in AL is offline
LawnSite Senior Member
 
Join Date: Jul 2000
Location: Alabama
Posts: 450
Quote:
Originally Posted by ed2hess View Post
Definitely go with Echo 265 when you replace it, a 2 stroke and adjustable carburetor.
Stihl has plenty of 2 stroke models that have adjustable carburetors... What makes the Echo 265 special?

The days of having a "fully adjustable" carburetor are long gone...

Quote:
Originally Posted by GlynnC View Post
Not much experience with Stihl or 4 mix, but they are still burning a mix. Do they not have exhaust port carbon issues?
2 strokes are the ones with exhaust screens, ports and mufflers that have the issue of stopping up... 4 strokes do not typically have any of those issues.
__________________
Jeff in AL

How very observant of you there captain obvious.

The amount of FREE information that you receive here will be directly proportional to the amount of information that you provide!
Reply With Quote
  #9  
Old 09-19-2013, 11:06 PM
WayneJessie WayneJessie is online now
LawnSite Member
 
Join Date: May 2012
Posts: 185
Quote:
Originally Posted by herler View Post
I don't know what to tell you 4-cycle hand tool haters but the longest running tools in my arsenal are ALL 4-cyclers, we're talking 9 years of almost every day use on one... The other's got like 6 years, another 7, I never saw that kind of longevity in the 2-cyclers but you have to get out of a certain mindset that boggles you down into believing what you believe or you'll never come out ahead, like any piece of equipment they do require maintenance a bit beyond pouring gas in the tank, so long this maintenance is performed periodically I have found little problem.

Granted some are brain busters but hey, if you don't want your 4-cyclers I will PAY the shipping to my house (assuming they are whole units with no parts broken or missing).
I became a 4-Mess hater by owning one. I traded my old Stihl 2-stroke in on one and it stank from day one. My local dealer is a full line Sthl, RedMax, Shindy, dealer and has been for many years. Since the advent of the 4-Mess he says he'll sell 10 2 strokes to one 4-Mess. He's not a Stihl hater but tries to steer people away from them that run commercially.
Reply With Quote
  #10  
Old 09-26-2013, 11:14 PM
sjh71 sjh71 is offline
LawnSite Member
 
Join Date: Sep 2013
Location: IN THE HAMPTONS LOL
Posts: 1
fs 90

Quote:
Originally Posted by Jeff in AL View Post
The unit as stated is an FS90! It is a 4-STROKE engine! Pulling the muffler will not reveal anything about the piston/rings/cylinder condition!
I work at dealer we use a quick assessment. if unit needs new head Throttle cable and carb or bad leak down or crankcase pressure leak is a defiantly not worth fixing..sounds like it has a bad exhaust valve,
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 12:39 PM.

Page generated in 0.09220 seconds with 8 queries