A-1 Miller's Performance Enterprises | 1501 W. Old Plank Rd. | Columbia, MO (Missouri) 65203-9136 USA | Phone: 1-573-256-0313 (shop) | 1-573-881-7229 (cell). Please call Monday-Friday (except Holidays), 9am to 5pm, Central time zone. If no answer, please try again later. (When speaking with Brian, please be patient because I stutter.) A-1 Miller's shop is open to the public from 9am to 5pm, including weekends (except Holidays). Please call before coming so I'll be here waiting for your arrival. Fax: 1-573-449-7347. E-mail: pullingtractor@aol.com. Directions to our shop | 1501 West Old Plank Road, Columbia, MO - Google Maps or Map of 1501 West Old Plank Road, Columbia, MO by MapQuest.

Converting a Kohler Engine with the starter/Generator to Maintenance-Free Flywheel-Triggered Electronic Ignition -

Flywheel-Trigger Ignition Kit for Kohler engine models K141, K160/K161, K181, K241, K301 and K321 with the small (8") diameter flywheel and starter/generator. The PerTronix Ignitor module/sensor sends more voltage to the coil, which delivers twice the voltage to the spark plug, increasing horsepower and spark plug life. Hall Effect integrated circuit means no points to burn, and no moving parts to wear out. Epoxy molding makes the module impervious to dirt, oil, grease and moisture. Stable timing - no need for any adjustments. This simple and reliable ignition system system produces a very strong spark, and the ignition timing will always be set at 20º BTDC, or wherever you set it. This system can be used on lawn & garden engines or stock (4,000 RPM) competition pulling engines. Kit includes a PerTronix Ignitor non-magnetic sensor/module, thermal grease and mounting screws, small ring magnet/rubber cushioning/isolator washer/mounting screw (weighs 1/10 oz. / 6 grams). The sensor is activated by the South pole of the magnet, so do not remove the magnet from the screw! NOTE: Neodymium and magnets are the strongest available. Five times stronger than ceramic (ferrite) magnets for stronger detection. So be extra careful when handling rare earth/neodymium magnets. They are very brittle and can break when snapped onto something or when the screw is overtightened. When installing the magnet/screw/rubber washer on the flywheel, tighten the screw just until the rubber washer begins to bulge. Secure the screw with high strength liquid threadlocker (Red Loctite, Permatex or equivalent). The PerTronix Ignitor must be used with a minimum 3.0 ohm coil or it may burn up. Most small engine battery ignition coils have a 3.0 ohm internal primary resistor. But test your coil just to make sure! Click or tap here to learn how to test the ohms resistance in a coil. $75.00 per kit, plus shipping & handling.

Directions to Install This Kit -

  1. Remove the points and condenser and block-off the points pushrod hole with the supplied plug. Failure to do this will cause a major oil leak out the hole.
  2. Align the S mark on the flywheel with the center of the timing sight hole on the back of the bearing plate or on the side of the flywheel shroud, and with the flywheel in place and standing still, draw a horizontal line on the outside of the flywheel and on the bearing plate at the 10:30 position. This will be the location on the bearing plate to install the PerTronix Ignitor.
  3. On the outside of the flywheel, draw another line vertically or crossway 1" up or away from the bearing plate with the line that was drawn on the flywheel to create a + intersection. It is at or near this location where the trigger screw/magnet/rubber washer is installed in the flywheel. The screw must be centered with the PerTronix Ignitor to avoid a misfire.
  4. Very carefully drill and tap 6-32 UNC threads in the flywheel where the two lines intersect and install the supplied trigger screw/magnet/rubber washer (weighs approximately 1/10 oz. / 2.8 grams) in this spot. The screw head is magnetized to trigger the spark. This spot allows the screw/magnet/rubber washer to clear the flywheel shroud mounting boss located at the 4:30 position on the bearing plate. Click/tap here to learn how to professionally cut new threads. NOTE: The rubber washer prevents the high strength but delicate and brittle magnet from possibly breaking when the screw is tightened to the uneven or rough casting on the flywheel. IMPORTANT: To prevent from possibly loosening, secure screw in flywheel or rotating disc with high strength liquid threadlocker (Red Loctite, Permatex or equivalent). Tighten screw just when the rubber begin to bulge, and allow the Loctite to dry and harden overnight. The PerTronix Ignitor hall effect module/sensor is activated by the South pole of the magnet, so do not remove the magnet from the screw!
  5. With the S mark on the flywheel aligned or centered with the timing sight hole in the bearing plate, center the Ignitor with the magnet, allow .010"-.050" clearance, mark on the bearing plate and drill and tap 6-32 UNC threads in the bearing plate to mount the Ignitor and spacer. Click/tap here to learn how to professionally cut new threads. Be sure to apply thermal paste (to dissipate normal operating heat) between the Ignitor and aluminum spacer to help cool the module, and then securely fasten the Ignitor and aluminum spacer to the bearing plate with the supplied 6-32 UNC screws and split lock washers. IMPORTANT - Gently rotate the flywheel back and forth by hand to check and see that the module/sensor does not make contact with the screw head. Damage to the module/sensor will occur if it makes contact with the screw head!
  6. Drill a 5/16" hole through the bearing plate behind the Ignitor and route the wires from the Ignitor to the ignition coil. Bevel or chamber the drilled hole, use a rubber grommet or apply clear RTV silicone adhesive sealant in the hole and around the wires to hold the wires rigid to prevent the insulation on the wires from rubbing and possibly being shorted.
  7. Disconnect and do away with the wires to the points and condenser (plug the points pushrod hole). Connect the BLACK wire on the Ignitor to the coil negative (–) terminal, and connect the RED wire on the Ignitor to the coil positive [+] terminal and to the ignition switch (positive [+] battery post). IMPORTANT - The module/sensor will burn up if the ignition switch is left on for more than a few minutes with the engine not running. To prevent this from possibly happening and/or for security reasons, use an OFF-ON key switch and/or a master disconnect switch with a removable key instead of just a toggle/flip switch to power the ignition system.
  8. With an ordinary stock coil, set the spark plug gap .035" and place the spark plug on a grounded metal cover. Turn the ignition switch on, rotate the flywheel back and forth by hand so the magnet passes the Ignitor and observe for a strong, blue spark at the spark plug's tip.