Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 06-29-2003, 02:27 PM
CTservices CTservices is offline
LawnSite Member
 
Join Date: Apr 2002
Location: S.E. TN.
Posts: 103
Scag 36" belt with Kw 12.5 hp

Got a problem with my belt drive scag wb. Engine seems to be missing at full throttle, blades engaged. When it happens, sounds like a spark ping. I've changed the plug per the Kawasaki manual, changed air filter and pre filter. Doesn't happen all the time. Fuel filter has maybe 30 hrs on it. Engine runs fine on start up, problem seems to happen after it warms up, and hits deep grass a few times. I would appreciate your guys help, don't have the $ to take to the dealer right now.

Thanks
Chris
Reply With Quote
  #2  
Old 06-30-2003, 01:41 AM
Rustic Goat Rustic Goat is offline
LawnSite Bronze Member
 
Join Date: May 2003
Location: Shreveport,La.
Posts: 1,194
You using an NGK plug, if not do that for starters.
Check all cabling, nuts, bolts, air filter, and especially the choke/throttle cable and its settings.

Is this an older unit?
__________________
Rustic Goat
Reply With Quote
  #3  
Old 06-30-2003, 06:59 AM
CTservices CTservices is offline
LawnSite Member
 
Join Date: Apr 2002
Location: S.E. TN.
Posts: 103
I was told it should be about 4-5 years old. I haven't ran the numbers on it to get a exact date. I am the second owner. It has a new champion plug. Haven't had any problems with champions in all my other equipment. All cables appear tight and linkage good. I don't know if I just need to clean/rebuild the carb, or if it could be a coil/ignition module intermittent failure. I'm just trying to save a diagnostic fee at the local small engine mechanic.


Chris
Reply With Quote
  #4  
Old 06-30-2003, 09:37 AM
Rustic Goat Rustic Goat is offline
LawnSite Bronze Member
 
Join Date: May 2003
Location: Shreveport,La.
Posts: 1,194
It's all guess work till a diagnostic is done, time vs money for a reality check.
__________________
Rustic Goat
Reply With Quote
  #5  
Old 07-03-2003, 08:13 AM
xpnd xpnd is offline
LawnSite Senior Member
 
Join Date: Dec 2002
Location: Mckinney TX
Posts: 378
How many hours in those 4-5 years from the first owner? If you determine the engine is worn (low compression) do not simply replace with the same 12.5 Kaw. They are pitifully undersized for this mower. If money is an issue compare the cost of a short block and that of a new engine 14hp or above. this year I set an 18 hp Kohler on my 36 and am absoultely thrilled with it .
Reply With Quote
  #6  
Old 07-19-2003, 01:33 PM
CTservices CTservices is offline
LawnSite Member
 
Join Date: Apr 2002
Location: S.E. TN.
Posts: 103
Quote:
Originally posted by xpnd
How many hours in those 4-5 years from the first owner? If you determine the engine is worn (low compression) do not simply replace with the same 12.5 Kaw. They are pitifully undersized for this mower. If money is an issue compare the cost of a short block and that of a new engine 14hp or above. this year I set an 18 hp Kohler on my 36 and am absoultely thrilled with it .
Could you provide me with some part numbers for the 18hp kohler and the other engines you may have consdiered? My 12.5 is shot, valve seat has rode out of the block. How hard is the 18 to pull start? Due to cost, I may have to go with a 14hp, but I would appreciate any part numbers you have found that would work. Supplier info would be great too.

Thanks
Chris
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 07:32 PM.

Page generated in 0.07803 seconds with 9 queries