last fall I went through it and got it back to operating condition. I'm assuming that if the SEE test does not produce a spark, the spark advance unit is required. I am hoping that someone with experience on these units might be able to point us in the right direction for testing the Spark Advance Module and/or figuring out if all the safety switches need to be in place or by-passed in order to make this work. Manuals and User Guides for Kohler Command PRO ECV740. google GARDNER INC ENTIRE STUDY GUIDE KOHLER, the link should download a technicians study guide which outlines complete theory and testing of the multi terminal magneto smart spark system. 2) Disconnect negative (-) battery cable from battery. Back to the schematics to check for sure. I wasn't sure if the spark advance module was required to energize the coils so I hooked up the wire from the  spark advance to the coils (wide friction clip ). This wouldn't be the first mystery made deeper by the demystification guide. The rest of this post is assuming that your continuity tester is either a Multimeter, or a battery powered continuity light. Pretty interesting how all of this stuff is interconnected.  And to think we only purchased it to cut the grass, we weren't going to the moon! Wish me luck!! Checked for spark at the plugs - nothing. Kohler command 14 with no spark. As I was tinkering with the wiring (the previous owner was no electrician nor apprentice) this is a wiring nightmare! Both coils and plugs. I am pretty sure he said there was a "black box" with wires leading to the coils.  Could this be a Speed Advance Module?  If so, is there a way to check it as there is still no spark with the new coils installed. Recently picked up a NAMCO Express, with a 20hp Kohler Engine (I'm just about ready to slap my 24hp Honda in it). It has a 27hp vertical shaft Kohler command engine. Model No. $13.00. Can anyone shed any light for us?  I am the computer guy and my friend is the mechanical guys so if you need clarification on what has been done, please ask. I would like to find out if that second wire has any thing to do with the  spark at the plug. 691 sold. On the 5xi, in order for the starter to engage, the seat switch must be made, and the parking brake must be set so that it's interlock switch is made as well.  If neither of these are made, you will not get the starter to crank.  Just as a point of reference, the original post in this thread is a situation where the engine cranks, but no spark.  An open safety interlock switch prevents the starter from cranking, so I think we that the safety interlocks are all working on buckhornbob's tractor. One day it was running just fine and the next day it would turn over like crazy but would not start.  I tried putting a little gas straight intop the carb and still nothing. The mags are self contained units and only need to "see" the magnet on the flywheel to produce a spark. Discussion in 'General Lawn Garden Tractor Forum' started by Bigboost, May 21, 2014. Regardless, Bob states he has a 99, and he has removed the KILL wires from the mags. The model # is 917.288611 and the engine is a 26 hp kohler engine with the courage pro name on it. Just waiting patiently for my fix-it guy to let me know if I have to buy a SAM unit. He had sent the following earlier this morning so I hope he is on track for some positive results. Any help would be greatly appreciated. Let us know how you corrected the problem. Fuel Components Fuel Pump. $54.99. good point for killing an already running engine. It is a pull start, (turn the key on and pull the recoil rope). Also consider checking the condition of the battery and be certain the cranking rpms are above 550 {as stated MANY times in the service manual}  My 23hp verts refuse to fire if the battery cant spin them fast enough. Remove spark plug(s) and pour about 1 oz. After installing everything and letting the fuel pump cycle through to prime the system, the motor will turn over but will NOT start. However, not unlike all engines in this class, problems do occur. On the 5xi series, if the seat switch opens while the PTO is engaged, it takes the power off of the "kill relay" coil (K1), and shuts down the engine.  If a jiggle of the seat switch fixes the problem, you may have a bad connection in the connector going to the seat switch, a bad wire in this part of the harness, or a seat switch that is going bad.  The seat switch closes the circuit when you sit on the seat.  During normal operation with the PTO engaged cutting grass, if I lean too far off the seat to grab a fallen branch, the motor will start to shut down.  Likewise if you get off the seat with the PTO dis-engaged, and don't set the parking brake, the engine will shut down.  Big Brother is watching you!! It's easy! Free shipping. Have you tested the voltage and continuity going to the coils? After my husband tried to adjust the coil / module, spark adv part # 24 584 63-s gap now he can get a weak spark from both of the spark plug wires. You need to be a member in order to leave a comment. Maybe they are not snapping on the plug tip. If the primary voltage is lower than 12.6 volts you get weak spark and or no spark. I double checked the gap at the mags and the connections that go to them. Replace spark plug(s) and However, the electronics don't monitor the seat switch for starting purposes. I left the kill switch wire (narrow friction clip) off just in case it was shorting out somewhere. Please help I have a Scag sw-48. My next step is find out how the spark advance module is powered. I'm thinking its the rectifier. 1972 Commando 800 4 speed Im getting no spark to plug on K181S spec# 30461D Serial # 4089559 The motor turns over but with plug out resting on head there is no spark. I have come to the same conclusion as Save Old Iron, it is really looking like the SAM as long as the kill relay has been confirmed as ok.  If you have a Wheel Horse/Toro dealer in your area, I would give them a call and see if they can test the SAM.  The Kohler manual says that the SAM can be tested removed from the engine.  I have not been able to confirm if the oil pressure switch is tied into the SAM or not, but I would make sure that the crankcase has the correct oil level. progress, but only for 5 minutes. For a better experience, please enable JavaScript in your browser before proceeding. $6.50 shipping. I replace the ignition module and now both sides have a spark. Tried another coil and condenser still nothing. If the tractor is turning over but has no spark here are a few things to check: First remove the blower housing. Parts lookup for Kohler power equipment is simpler than ever. Bob, if you have removed any possibilty the mags are grounded (by removing the KILL wire at the mags). I got the manual and sent a copy of the electrical portion to my buddy. p.s. have your friend disconnect the kill wire from both coils and try again. I'm not sure if the physical length of the wires will prohibit interchanging them. Took off the fly wheel and all the magnets were in place, next I checked the Stator to see if it was bad.. leads was not grounding out. Hello - Back again after hearing from my "fix-it" buddy. So the other day, I was replaced the coupler, rebuilt the carb. I have tested all and I know that there is no spark is my problem. My next step is find out how the spark advance module is powered. 53. A 26 horsepower KOHLER Courage twin two 2 cylinder engine that WONT START won't RUN or backfires. Battery Charging System. I disconnected the kill switch wire and still no spark. Called my friend who is way more mechanical than me.  When he looked at it he said it would be best to get  it into his shop and he would try to work on it between other jobs. I have a 1998 518xi. With that thought,since no spark appears with or without the spark advancer, the unit may be faulty. Although the spark plug tester lights up, it seems dim. 2 / Kohler Command PRO EFI. By I'll repair the intermitant power problem at the fuse block first. New Kohler 5258401 Ignition Coil Replacement. 51. We really appreciate any ideas, advice, suggestions or direction. Will pass along the kill switch information (thanks) and ask about any reading he might want. When no spark appeared I rechecked the gap and tried again. Maybe all of the safety switches have to be in place before the power even gets to the spark advance module to energize the coils. Dec 11, 2012 #1 I have a vermeer stump grinder that seems very temporamental & can't figure it out. If there is no spark, this indicates that the spark plug is defective and should be replaced. I did a bit of digging into what powers this unit and it looks like the power comes from the key switch, I did find  a poor connection at the fuse block at the main fuse. and tried to fire it up with no luck. Required Part. Interesting. I was hoping to get a spark at the plug but that didn't happen. IF the kill relay is NOT grounding the mag kill termnal, Then the SAM calculates a delay appropriate to the current RPM of the engine and sends an output signal on the BROWN wires to the mags. Any help guys?  Winter is approaching and I really need to get my snowblower mounted. 0 bids. Spark Plugs. The SAM senses the engine RPM and introduces a delay to the 2nd "FIRE" terminal on the mag(s). It may not be the cause of our problem but it's not right . I then pulled the spark plug out and grounded it to see if I can see the color of the spark, but no spark either side. Have tried to tighten the plug clamps inside the boots? This also did not produce a spark. JavaScript is disabled. So the other day, I was replaced the coupler, rebuilt the carb. Some of the newer engines use a SMART SPARK system or even VARIABLE TIMING systems. $8.95 shipping. I also put on new spark plugs at that time ,nothing. This will fry both mag coils almost instantaneously. So far I can't get power out of the spark advance unit. we fired it up in the barn after sitting all winter moved it about 300 yards and turned the deck on(pto switch) mowed about 10 feet and it died.. we thought the battery was bad and we put in a new battery. It's a Kohler CH 26 with EFI. Select Engine Series or Model Once again my fix-it guy has responded as follows: Think I got the fuse box back together cause the dash lights stay on now and I'm getting a steady clicking sound under the steering wheel. and tried to fire it up with no luck. 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