You are here:

Small Engines (Lawn Mowers, etc.)/Steiner ZTM325 w/ Kohler CH25QS


Hi, thanks, I really appreciate your help! I have a Steiner ZTM325 w/ Kohler CH25QS 68571.  I am trying to replace the spark plug wire/modules but I can't figure out how to get to them.  The cowling(?) on the front of the engine seems trapped at the bottom somewhere.  I've removed most of the tin from the engine, oil cooler, fuel pump, front engine firewall.  I can pry up the cowl enough to just barely see under, but can't get it away far enough to remove the modules.  Also, how do the modules attach?  I don't see screws, but I don't have a very good view either.  Any help is appreciated.

The modules are held in place with 2 screws/bolts.

I looked in the service manual and does not say anything special about removing the schroud.

Are you sure all the bolts/screws are removed?  Sometimes the shroud is connected to other sheet metal or plastic pieces with dimples or retaining points.  Are you sure the schroud is not hitting another parts causing it to bind when removing?  This is very common on many engines.


Small Engines (Lawn Mowers, etc.)

All Answers

Answers by Expert:

Ask Experts


Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

©2017 All rights reserved.