Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 04-04-2013, 06:57 PM
Stinson Landscape Stinson Landscape is online now
LawnSite Member
 
Join Date: Apr 2009
Location: Poughkeepsie NY
Posts: 35
Echo PB755H bog issue

I have an echo pb 755H blower that when run at full throttle it will bog as if its loosing spark. It only does it after about 10 to 15 mins of use, then will continue every 5 to 10 mins give or take. Issue started the end of last season, thought I had it fixed with a new coil and boot, but its still there.

Background info:

-new intake gaskets
-new coil and boot (issue was there before new coil)
-newer plug
-exhaust clean
-was bought brand new in either 07 or 08 (still seems like it runs strong even with the issue)

tired running with kill switch disconnected, still ran the same.

Anyone have any ideas?
Reply With Quote
  #2  
Old 04-04-2013, 08:03 PM
camshaft49 camshaft49 is offline
LawnSite Member
 
Join Date: Jan 2013
Location: Louisiana
Posts: 18
I think its a fuel issue more thab spark give the carb a good cleaning
Reply With Quote
  #3  
Old 04-04-2013, 09:26 PM
ed2hess's Avatar
ed2hess ed2hess is online now
LawnSite Fanatic
 
Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 11,488
I ASSUME YOU put a new fuel filter in the unit? If tha don't fix it then adjust the and give it more gas CCW. I also assume your air filter is clean and not saturated with fuel.
Reply With Quote
  #4  
Old 04-04-2013, 09:43 PM
Landrus2's Avatar
Landrus2 Landrus2 is offline
LawnSite Platinum Member
 
Join Date: Dec 2006
Location: Big apple
Posts: 4,691
Make sure the fuel tank cap inlet valve is working properly, this will allow a vapor lock if it is not. Then check the fuel line in tank to make sure the pickup filter is not hung up in tank thereby allowing the fuel to get below the pickup. Also check the fuel line for holes.
Reply With Quote
  #5  
Old 04-05-2013, 10:14 PM
ed2hess's Avatar
ed2hess ed2hess is online now
LawnSite Fanatic
 
Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 11,488
Quote:
Originally Posted by Landrus2 View Post
Make sure the fuel tank cap inlet valve is working properly, this will allow a vapor lock if it is not. Then check the fuel line in tank to make sure the pickup filter is not hung up in tank thereby allowing the fuel to get below the pickup. Also check the fuel line for holes.
I don't have my 755 close but don't it have the same breather that all the other have....the little white canisor with cap on it?
Reply With Quote
  #6  
Old 04-04-2013, 09:39 PM
Stinson Landscape Stinson Landscape is online now
LawnSite Member
 
Join Date: Apr 2009
Location: Poughkeepsie NY
Posts: 35
Going to pick up a fuel filter tomorrow and try that. Air filter is clean.
Reply With Quote
  #7  
Old 04-04-2013, 09:46 PM
Stinson Landscape Stinson Landscape is online now
LawnSite Member
 
Join Date: Apr 2009
Location: Poughkeepsie NY
Posts: 35
Thanks Landrus, ill check those areas also.
Reply With Quote
  #8  
Old 04-04-2013, 09:49 PM
WarrenRaymond's Avatar
WarrenRaymond WarrenRaymond is offline
LawnSite Member
 
Join Date: May 2004
Location: New Orleans, LA.
Posts: 11
You stated that your exhaust was clean. I run a rich mix of oil and gas in my equipment which clogs the exhaust screen after a while. This starts off as a slight bogg from time to time under full throttle and gets worse. I usually remove the screen and clean out the muffler. Try removing the screen and running it to see if there is any difference, I have also removed the muffler and run mine to be sure. The exhaust on that model may also have baffles in it which could be clogging. The coil issues are usually intermittent and show up when the unit gets hot and can go in and out from running fine to loosing power. Once the unit would cool down it would run fine again, thus leaning toward a coil issue.I hope this helps.
__________________
Warren E. Raymond
Lawn Care L.L.C.
Mowing The World
One Lawn At A Time
Reply With Quote
  #9  
Old 04-05-2013, 12:44 PM
Stinson Landscape Stinson Landscape is online now
LawnSite Member
 
Join Date: Apr 2009
Location: Poughkeepsie NY
Posts: 35
Changed the fuel filter, breather cap and gas cap gasket and she's runs like a champ. Thanks for the help everyone!
Posted via Mobile Device
Reply With Quote
  #10  
Old 04-05-2013, 10:15 PM
ed2hess's Avatar
ed2hess ed2hess is online now
LawnSite Fanatic
 
Join Date: Nov 2002
Location: Austin Texas 78727
Posts: 11,488
You might want to figure out where the carb adj is and get the tool or you will be back soon
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 07:37 PM.

Page generated in 0.09081 seconds with 7 queries