Register free!

The Green Industry's Resource Center


Reply
 
Thread Tools   Display Modes
  #1  
Old 08-05-2010, 06:21 PM
Genlandscape's Avatar
Genlandscape Genlandscape is offline
LawnSite Member
 
Join Date: Jul 2008
Location: Spring Hill, FL
Posts: 182
27 hp Kohler (CV740s) dropping a cylinder, anyone have coil specs?

One of my 27 Kohlers has a cylinder dropping out intermitently, and i cant figure out what it is. I have been through the entire electrical system short of bench testing the coils(don't have resistance specs). Driving me crazy, won't drop out long enough to figure out which cylinder it is. Been through enough head gaskets already, don't want to damage anything.
__________________
Reply With Quote
  #2  
Old 05-01-2012, 04:27 PM
Cutting Edge man Cutting Edge man is offline
LawnSite Member
 
Join Date: Jun 2004
Location: LaPlace Louisiana
Posts: 25
i'm having the same problem. did you get it fixed? if so what was it?
Reply With Quote
  #3  
Old 05-01-2012, 11:30 PM
justanotherlawnguy's Avatar
justanotherlawnguy justanotherlawnguy is offline
LawnSite Bronze Member
 
Join Date: Apr 2004
Location: tampa, fl
Posts: 1,192
I am 99% that's the same model I have, engine did the same thing for about a year. It was really bad when it's really hot out.

I replaced the coils with I believe a SAM kit.

I will look for the part number and post it later.
Posted via Mobile Device
Reply With Quote
  #4  
Old 05-01-2012, 11:37 PM
justanotherlawnguy's Avatar
justanotherlawnguy justanotherlawnguy is offline
LawnSite Bronze Member
 
Join Date: Apr 2004
Location: tampa, fl
Posts: 1,192
Wow, surprisingly I just found the paper:

There was a service bulletin put out by kohler.
It's called an "Improved DSAI Ignition Modules"

Conversion kit 24 755 172-s is the kit for the ch/cv/sv740

There is also a diode to install, 25 755 40-s

I installed both in December with some new plugs and the machine runs like a champ...
Posted via Mobile Device
Reply With Quote
  #5  
Old 05-01-2012, 11:46 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
I thought I was having same problem on a 26hp EFI and Tonite found out its not the coil
acted like a coil on the left side if looking at the value covers
One cylinder what I thought mis fire as I was mowing Finally it died before I get on the truck So started to check things out I had fire I had gas from fuel filter Some reason I check the bleeder no fuel Got check the lines and piece of rubber blocking the left cylinder fuel The fuel line after the filter is falling apart inside
Tomorrow time put new lines on This a 2001 mower
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 08:02 PM.

Page generated in 0.06464 seconds with 9 queries