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Thread: 1300 diagrams for Charging, Starting, Ignition Reply to Thread
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  Topic Review (Newest First)
09-26-2019 10:13 PM
Hans&Feet ICM leads that break are the Black +12v wire or the Green IPG wire(sometimes both).

Too short from the main harness, so stress and vibration create a failure.
07-06-2019 04:37 PM
jackk Regular electrical tape. I removed a lot of tape. I still hope ot is not too tight?
07-06-2019 12:23 PM
Hans&Feet Early years had very short wires.
Post a pic of your ICM and the wires at the connector. Later models may have more slack, I would like to see.

Any tape you have on hand.
Several layers of electrical tape, shipping tape. Duct/Duck tape.
07-06-2019 11:51 AM
jackk Hans. any recommendation as to the type of tape used for strain relief of ICM?
07-05-2019 11:22 PM
cc rider I saw it. Thank you. Everybody that has been around knows about those two wires. I haven't been around that long but I know about it from reading on the forum
07-05-2019 10:50 PM
Hans&Feet Ccrider - I hope you saw the pic with tape around the ICM and cable..

Jackk - time to have your eyes checked.
Starter Relay pic with designations shows a yellow blob of plastic with 14 pins.
07-05-2019 10:02 PM
cc rider Hans is probably one of the best contributors to a forum that I have seen. And I have been to many
07-05-2019 09:40 PM
Originally Posted by Hans&Feet View Post
Cooling system to be added also. Read, learn, share, have fun and enjoy. Download a SM.
A specific diagram to make it easier to understand. The parts fiche is a great way to get more info.
Charging system has a permanent magnet spinning around a stator to produce electricity from magnetic fields.
The Stator produces Alternating Current, the Rectifier gates the negative and positive sine waves to produce pulses of Positive and Negative polarity.
The Regulator controls the charging voltage by shorting the Stator winding. All VTX were originally supplied with "Shunting" regulators.
Rectifier and Regulator are combined into one unit(R/R). VTX stators are 3 Phase Delta system.

The Starting System has a safety "Ground Line" to prevent cranking/running with the Kickstand down when in gear.
Kickstand has to Be UP when in gear to start the engine. The Clutch lever has to be operated to close the clutch switch.
The Neutral Switch provides the Ground necessary when in Neutral.
The Starter Switch is a common problem, headlight current going through the switch after some time with dirt and grease
will create some resistance which heats up plastic switch parts. The contacts may move slightly, the movable part of the
switch common to both switch functions may get stuck. Often the connection for the Starter Relay and Headlight are impaired.
Cleaning the contacts usually clears the problem, sometimes spring stretching or shunt tweaking is necessary.
Pictures and the process>> http://www.rattlebars.com/mtz/starter.html

The Ignition Control Module(ICM) outputs Ground pulses to energize the IGN coils and to control timing advance from the Throttle Position Sensor.(TPS)
The only problem with the ICM are several short wires that tend to break at the ICM connector.
Reducing stress/strain on these wires is the preventative maintenance.

Hans, great pics! A picture is worth 1000 words.
08-04-2018 11:39 PM
cc rider Hans, thanks for posting these. So you're saying to just flip the icm over to allow slack for those couple of tight wires and just throw some tape on there? I havent had a problem but its always nice to do a little prev. maint.
08-04-2018 01:17 PM
Hans&Feet 1300 engine is similar to the 1800 in several ways. Transmission gears, oil pump, coolant pump driven by oil pump shaft are similar.
The same Cam Chain Tensioner is used(14510-MCH-000 TENSIONER, CAM CHAIN)
The 1300 balancer (vibration reduction) is in the dry sump crankshaft area.
I am only aware of three 1300 engine failures, this one was sabotage(Dilligaf1300).

A few stator failures on 1300, mine was one of them.
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