1800 diagrams for Charging, Starting and FI system - VTXOA
 11Likes
Reply
 
LinkBack Thread Tools
post #1 of 15 (permalink) Old 07-27-2018, 05:34 PM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
1800 diagrams for Charging, Starting and FI system

I previously had these shared on photobucket but they wanted money.
Now that this server allows saving pix and documents we can see them here.
You can copy/save/print/post anything, be my guest. Share and learn!

1800C uses incandescent bulbs as indicators.
1800 C/F had an extra 20 amp fuse added in 2005 (2005+)
02-04 C has dual filament front Run/Turn Signal bulbs = 1st Gen with 22 pin ECM connectors, 3 terminal TS flasher.
02-03 R/S has dual filament front Run/Turn Signal bulbs = 1st Gen with 22 pin ECM connectors, 3 terminal TS flasher.
All N models and all F models are Gen 2.
All Gen 2 have single filament Front Run/TS bulb, 8 pin electronic flasher(C has 7 pins, single indicator),
32 pin ECM connectors and a good engine--frame ground.

Charging system is the same from the first VTX to the last VTX.
If you see a particular year shown, it was the Service Manual I was looking at generally.
Attached Images
File Type: png 1800 chargingcktv2.PNG (147.4 KB, 30 views)
File Type: jpg 1800 Left cover 30A fuses starter relay.jpg (313.2 KB, 25 views)
File Type: png 1800 starter relay layout.png (193.6 KB, 23 views)
File Type: png 1800 right side cover.png (188.6 KB, 23 views)
DrDolittle and TXpunisher like this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles

Last edited by Hans&Feet; 07-28-2018 at 09:08 AM.
Hans&Feet is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 07-27-2018, 05:47 PM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
This will be the Starter circuit post.
Starter Relay has a safety feature on the Ground line---A Ground has to come from the Neutral switch or from the Kickstand Switch when UP + the Clutch switch.

The ECM also has to see a Ground from one of the two sources or it will prevent Ign coil or Injector from operation(No pulses).
Attached Images
File Type: png 1800 starter relay ckt.png (167.3 KB, 16 views)
File Type: png 1800 starter relay layout.png (193.6 KB, 14 views)
File Type: jpg 1800 Left cover 30A fuses starter relay.jpg (313.2 KB, 13 views)
DrDolittle likes this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles
Hans&Feet is offline  
post #3 of 15 (permalink) Old 07-27-2018, 06:17 PM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
FI aka Fuel Injection.
30 amp Main fuse (FI fuse on some schematics) to Engine Stop relay with Red/White wire (except 2005+ C/F has extra 20amp fuse and Red/Green wire).
The 2 pin connector near the Starter relay in the left frame cover has the Red/White wire on it, that connection has burned open on 02-03 models.
Melted Main Wiring by Bare was the first alert on this. https://tech.bareasschoppers.com/tec...d-main-wiring/

The Run/Kill switch is the positive trigger to the Engine Stop Relay(ESR). The Bank Angle Sensor is the negative trigger of the ESR.
If the 1800 falls over the IGN switch has to be recycled after being returned to seat UP condition.
The other ESR contact goes to the Black/White wire which brings +12v to Ign coils, Injectors, ECM, Fuel Pump relay, two solenoids and O2 if Calif.
Attached Images
File Type: jpg 1800 Ignition.jpg (183.3 KB, 14 views)
File Type: png 1800 Fuse-relay-mydiagram2.png (55.1 KB, 11 views)
File Type: png 1800 fuse-relay-mydiagram1.png (43.4 KB, 11 views)
File Type: png 1800 FI system diagram.png (182.3 KB, 11 views)
File Type: png 1800 FI relay wiring.png (168.2 KB, 12 views)
File Type: jpg 1800 02-03 fuel pump test.jpg (221.2 KB, 9 views)
File Type: jpg 02-03 FI system location.jpg (225.7 KB, 10 views)
File Type: jpg 02-03 ECM main wires.jpg (377.3 KB, 8 views)
DrDolittle likes this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles

Last edited by Hans&Feet; 08-02-2018 at 11:44 AM.
Hans&Feet is offline  
 
post #4 of 15 (permalink) Old 07-27-2018, 07:19 PM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
A few miscellaneous items to discuss, Starter switch cleaning, VSS (vehicle Speed Sensor), low fuel indicator sensor.

Starter Switch has full time headlight current going through it, about 5 amps. Dirt + grease plus time and it creates resistance on the contacts which creates heat. Plastic may melt, shunt gets stuck, cannot bridge/close contacts, headlight and/or trying to crank engine fails.. Usually a cleaning restores the Starter Switch. Sometimes the shunt spring has to be stretched and the shunt may require a slight bend or trimming of plastic which could be preventing shunt movement. http://www.rattlebars.com/mtz/starter.html Great info at that site.

VSS is a sensor near a transmission gear tooth and it outputs +5v pulses when the rear wheel is turned. I measured between 68-72 pulses per revolution.
Usually the actual voltage is 3.5 volts. The 1800 has a much higher failure rate than the 1300, same part.
If the pulses are crappy the speedo/odometer may work intermittently and then normally it gets worse. Sometimes the VSS signal is missing or extremely crappy then the ECM will put it in "Failsafe" mode.

Low Fuel indicator - is a thermistor(special resistor) that when in fuel it has a high resistance(1k) and no bulb or led will light.
When it is in air the thermistor begins heating from current flow and the resistance lowers, the bulb gets brighter.
A few thermistors with led indicators have worked well in the repair, but the 1800C with a light bulb drawing more current was a problem to solve.
Putting two in parallel did not help, two thermistors in series worked. The OEM thermistor appears to be larger than the replacement therefore
more current capacity. Nascarpop with the in series thermistor project. Toboggan with the Led indicator. Both used same part#.
Attached Images
File Type: jpg VTX 1300 1800 VSS info.jpg (128.5 KB, 13 views)
File Type: png 1800 VSS ser man 19-9.png (103.6 KB, 14 views)
File Type: png 1800 VSS ser man 19-10.png (132.7 KB, 13 views)
File Type: png Toboggan Fuel level thermistor replaced.png (96.7 KB, 15 views)
File Type: jpg VTX1800C dual Thermistor fix.jpg (635.0 KB, 11 views)
DrDolittle likes this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles

Last edited by Hans&Feet; 07-27-2018 at 09:34 PM.
Hans&Feet is offline  
post #5 of 15 (permalink) Old 07-27-2018, 08:21 PM
Senior Member
 
Harkon's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta, Canada
Posts: 4,155
All good info. Thanks Hans.


'12 Road Glide Ultra, Kuryakyn Alley Cat intake, Jackpot Super Duals header, Jackpot HiRoller mufflers, PV Tuner, Daymaker LEDs
Harkon is online now  
post #6 of 15 (permalink) Old 07-27-2018, 08:34 PM
Senior Member
 
StarrRider's Avatar
 
Join Date: Jul 2015
Location: Oregon
Posts: 272
Garage
Thanks Hans. I subscribed to this thread. I think that will make it easier to find when needed..

03 VTX 1800 C ~ Mustang seat, Cobra pipes, Highway bar, Memphis shade Windshield, Viking hard bags, Honda Sissy bar, and Luggage rack..
StarrRider is offline  
post #7 of 15 (permalink) Old 07-28-2018, 09:32 AM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
General wiring. Where do all the Green wires go to???
There is a Yellow 14 pin connector block taped to the cable harness maybe 6 inches away from the ECM.
I counted 11 Green wires on the Yellow connector block, the majority are from lamp ground wires.
There is a larger gauge wire on that yellow connector that goes to the "Common Electronics" Ground bolt at the Front Ignition coil.
This larger Green wire appears to have a few things spliced to it(per schematic):
Rectifier/Regulator Ground, Fuel Pump ground, Horn, Optional Foglight connector, Blue 6 pin Headlight connector.
The Yellow 14 pin connector was shown on the 2006 schematics for the first time.

1st Gen shows 4 Ground wires on "Common Electronics" Ground bolt, 2nd Gen shows 5 Ground wires.

1800C has a single TS indicator, all the others have Right/Left TS indicators.

We even have a Euro schematic, they have a Run/Position light in the headlight bucket.
Attached Images
File Type: jpg 06+1800 grounding.jpg (644.3 KB, 9 views)
File Type: jpg 06+1800 rst-tail lights.jpg (135.2 KB, 7 views)
File Type: png 06plus1800C turn signal diagram.png (17.4 KB, 9 views)
File Type: png 05plus1800F turn signal diagram.png (18.8 KB, 6 views)
File Type: jpg VTX 1800 Eur wiring-frt LIGHTS.jpg (294.6 KB, 8 views)
DrDolittle likes this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles

Last edited by Hans&Feet; 07-28-2018 at 05:47 PM.
Hans&Feet is offline  
post #8 of 15 (permalink) Old 07-28-2018, 03:19 PM
Senior Member
 
Lou_VTX's Avatar
 
Join Date: Jul 2018
Location: Kalyfornya, TX
Posts: 567
Garage
Definitely lots of great information in this thread.
Thank you, Hans!

VTX 1800C
Lou_VTX is offline  
post #9 of 15 (permalink) Old 07-28-2018, 05:40 PM Thread Starter
Senior Member
 
Hans&Feet's Avatar
 
Join Date: Jun 2005
Location: Conyers/McDonough, GA
Posts: 9,796
Garage
Cooling system is always important. ECT - Engine Coolant Temp sensor looks like a two part operation.
A Green/Orange wire (Sensor Ground) and Pink/White go to the ECM for temperature sensing.
Green/Blue wire goes to the Temp Indicator light. A switch probably The body goes to ground.
The SM says something about Green/Blue and Green/Orange, so I am not sure what is going on.
Temp light and Sensor Ground should not get together in my book.
I believe +12v Temp light(Led) temp switch in ECT and Ground on the ECT body is the way it works.

Coolant pump coupled to Oil pump driven by chain from the Mainshaft.
One strange failure> coolant pump locked up and broke the sprocket on the mainshaft.
No oil pressure was the initial fault.
Attached Images
File Type: png 1800 cooling system specs.png (125.7 KB, 7 views)
File Type: png 1800 cooling system 6-0.png (210.1 KB, 11 views)
File Type: png 1800 coolant temp indicator test.png (165.2 KB, 8 views)
File Type: png 1800 ECT test 19-16.png (476.6 KB, 12 views)
Attached Files
File Type: pdf VTX110ci Wax Valve Info with pix on this thread.pdf (284.1 KB, 1 views)
DrDolittle likes this.

2005 1300c Red, Mustang seat, HK 2.5 straights. Leds for safety-front & back. 190,260 VTX miles

Last edited by Hans&Feet; 08-02-2018 at 09:50 AM.
Hans&Feet is offline  
post #10 of 15 (permalink) Old 07-28-2018, 05:50 PM
Senior Member
 
Lou_VTX's Avatar
 
Join Date: Jul 2018
Location: Kalyfornya, TX
Posts: 567
Garage
They have a typo in the SM on the last page (at the very bottom). It says 80C but it's supposed to be 20C (equals 68F) as in "room temperature".

VTX 1800C
Lou_VTX is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the VTXOA forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome