Register free!

The Green Industry's Resource Center


 
 
Thread Tools   Display Modes
  #1  
Old 08-18-2008, 10:59 AM
browng browng is offline
LawnSite Member
 
Join Date: Jun 2008
Location: Maylene, AL
Posts: 72
Engine doesn't run smoothly

My '08 FT SD with 23hp Kawasaki that 8 hours on it does not run smoothly when blade is not engaged, the engine acts like it is gasping for fuel. However when I engage the blade it seems to run more smoothly. When the engine is running the bulb on the in-line fuel filter is empty, you can see the gas squirting through but it is not full. Should the bulb be full of fuel at all times? A couple of weeks ago I ran one fuel tank completely out, I switched tanks and was able to restart the engine. Do I need to bleed the fuel line? If so, how?
  #2  
Old 08-19-2008, 05:14 PM
mowerconsultant's Avatar
mowerconsultant mowerconsultant is offline
LawnSite Fanatic
 
Join Date: Feb 2000
Location: Syracuse, NY
Posts: 9,755
You shouldn't have to bleed the fuel system unless its a EFI and yours is not.
Your telling me it runs ok when the blades are engaged and the unit is at full throttle?
If so it sounds like there may be something in a fuel passage in the carburetor.
Have you talked to your dealer? with only 8 hours on the mower they can certainly help you.

Pj
__________________
  #3  
Old 08-20-2008, 03:32 PM
CheezWiz CheezWiz is offline
LawnSite Member
 
Join Date: Aug 2008
Location: Middle TN. Upper Cumberland
Posts: 12
If these have a rev-limiter, could it be running too many RPM's when not under load?
  #4  
Old 08-20-2008, 05:08 PM
mowerconsultant's Avatar
mowerconsultant mowerconsultant is offline
LawnSite Fanatic
 
Join Date: Feb 2000
Location: Syracuse, NY
Posts: 9,755
Quote:
Originally Posted by CheezWiz View Post
If these have a rev-limiter, could it be running too many RPM's when not under load?
These engines are mechanically governed, there could be a governor adjustment needed, hard to say unless this unit was in front of me.

Pj
__________________
  #5  
Old 08-21-2008, 08:31 AM
browng browng is offline
LawnSite Member
 
Join Date: Jun 2008
Location: Maylene, AL
Posts: 72
It lopes at low as well as high throttle level. Should the fuel filter be at least partially full at all times?

I know it is difficult to diagnose a problem over the internet, I was just hoping it was something simple I could correct. I work week days and my dealer is not open on weekends and 40 miles away so it is difficult to get it in for repairs. Not to mention the heat I will take from my wife for buying a $7,000 mower that has loose bolts and doesn't run right.
  #6  
Old 08-21-2008, 09:19 AM
MOHUSTLER's Avatar
MOHUSTLER MOHUSTLER is offline
LawnSite Bronze Member
 
Join Date: Nov 2007
Location: Missouri
Posts: 1,376
Id take it to your dealer. Id say something in the carb, or fuel pump. Your dealer can fix it easily.
  #7  
Old 08-22-2008, 04:34 PM
mowerconsultant's Avatar
mowerconsultant mowerconsultant is offline
LawnSite Fanatic
 
Join Date: Feb 2000
Location: Syracuse, NY
Posts: 9,755
Quote:
Originally Posted by browng View Post
It lopes at low as well as high throttle level. Should the fuel filter be at least partially full at all times?

I know it is difficult to diagnose a problem over the internet, I was just hoping it was something simple I could correct. I work week days and my dealer is not open on weekends and 40 miles away so it is difficult to get it in for repairs. Not to mention the heat I will take from my wife for buying a $7,000 mower that has loose bolts and doesn't run right.
It really sounds like something in the carburetor passages to me, but cant be sure.
The fuel filter should be full when the unit is running, but thats going to depend on how the engine is running since its a vacuum / pressure operated fuel pump, if the engine isn't running right the pump may not be pulling the fuel in right.

Pj
__________________
  #8  
Old 08-25-2008, 11:03 AM
browng browng is offline
LawnSite Member
 
Join Date: Jun 2008
Location: Maylene, AL
Posts: 72
It sounds like it is probably more than a simple fix I can do. I have a call into my dealer. Thanks for your help.
  #9  
Old 08-28-2008, 05:21 PM
mowerconsultant's Avatar
mowerconsultant mowerconsultant is offline
LawnSite Fanatic
 
Join Date: Feb 2000
Location: Syracuse, NY
Posts: 9,755
Quote:
Originally Posted by browng View Post
It sounds like it is probably more than a simple fix I can do. I have a call into my dealer. Thanks for your help.
Let us know what they find please.

Pj
__________________
  #10  
Old 09-01-2008, 08:53 PM
BAKERS's Avatar
BAKERS BAKERS is offline
LawnSite Member
 
Join Date: Apr 2005
Location: MILLSBORO DELAWARE
Posts: 60
You definetly have a fuel problem, its in the carb. If you ran out of fuel the debris that was probably floating in your tank got sucked through the line. Now it is in your carb, if you haven't done so take it to your dealer. We see it all the time.......
 

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

Layout Style:





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.com™ - Moose River Media
All times are GMT -4. The time now is 03:58 AM.

Page generated in 0.09677 seconds with 7 queries