NOTE: There is a built in curve: A total of 5 ° retard at 1° per thousand. Also note that it can be powered by any 12 volt source or two 7.2 volt NiCad batteries.
MSD's Small Engine Controller is designed for single cylinder 4-stroke engines like Briggs & Stratton®, Tecumseh or Cushman engines. Three versions of the Small Engine Controller are offered - PN 41500 for points operated engines, PN 41510 for Briggs & Stratton® engines, and the PN 41510 for Tecumseh engines with a precise Hall Effects trigger which replaces the stock points. The stock ignition on these engines just can't deliver the powerful spark you need once you've started modifying them to run with higher compression heads and on exotic fuels. We offer a CDI system that produces in excess of 30,000-volts for a full 18° of crankshaft rotation. The MSD Small Engine Controller will produce quicker starts, crisper throttle response, reduced plug fouling, and more power throughout the entire rpm range.
Small Engine Ignition Controls
The MSD Small Engine Controllers are more than capable of handling increased cylinder pressures, higher rpm and even exotic fuels such as alcohol. This incredible power comes from a Capacitive Discharge Ignition design that is able to deliver a spark in excess of 30,000 volts! This spark is also packed with 100 millijoules of energy and will burn across the plug gap for up to 18° of crankshaft rotation. This incredible power will produce quick starts, crisp throttle response and more power!
Operating Specifications
Operating Voltage:
12 VDC, Neg. Ground
RPM Range:
14,000 (1 Cylinder)
Energy Output Max:
100 Millijoules/per spark
Multiple Spark Duration:
14° - 18° (1 Cyl)
Current Requirements:
1.5 amps@10,000 rpm
Weight and Size:
.50 lbs., 3½"L x 2"W x 1.5"H
Voltage Output:
Primary 450 Volts
Secondary:
(Open Circuit) 30+ KV w/MSD Coil
Besides the increased power of the MSD, the system also lets you easily adjust the timing! Stock ignitions tend to retard the timing at higher rpm while the MSD’s Hall Effect Pickup is much more accurate throughout the rpm range of your engine. Also, the trigger pickup plate is designed so you can adjust the position of the pickup. This lets you easily and safely adjust the timing. On stock engines you will have to remove the woodruff key on the crankshaft which will cause costly engine or even personal damage. The MSD system lets you set the timing from 14° to 38° by simply adjusting the position of the trigger pickup.
MSD offers two versions of the Small Engine Ignition System. One is for use with stock points and another with a precise Hall Effect Trigger Pickup which replaces the stock coil and points. Both versions are ready to install on all Briggs & Stratton® 5 hp, Tecumseh 5 & 10 hp and Cushman style engines.
Both Small Engine Ignition kits can be powered by any 12 volt source or by two NiCad 7.2 volt batteries run together. Each kit is supplied with the Ignition, a battery harness, timing tape, Pro CD Coil, a cut-to-fit 8.5mm Super Conductor Spark Plug Wire and a heavy duty On/Off switch.
Replacement Parts
Small Engine Hall Effect Trigger Pickup (PN 4154)
The Small Engine Controller uses a Hall effect style pickup. These pickups are extremely accurate through the entire rpm range of your engine. This is extremely important, especially at high rpm where most pickups actually retard the timing. This compact pickup is molded-over in an epoxy compound for increased protection against vibration and racing conditions.
Also, the trigger pickup plate is designed so you can adjust the position of the pickup. This lets you easily and safely adjust the timing. On stock engines you will have to remove the woodruff key on the crankshaft which will cause costly engine or even personal damage. The MSD system lets you set the timing from 14° to 38° by simply adjusting the position of the trigger pickup.
Small Engine