Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - Reply to Topic
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

Thread: Rear Cylinder dead? Reply to Thread
Title:
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

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










  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
04-29-2019 06:45 AM
VN750Rider/Jerry If the coils are getting 12V and not working they are bad. Coils are bad to fail when they get hot. I have a 1964 Ford that started up just fine, and ran fine until the engine got nice and warm, then it started to misfire. I traced the problem to an intermittent open circuit in the coil. A ne coil fixed it. The "pickup coils" on a Vulcan 750 are nothing but Hall Effect sensors that take the place of the points, I prefer points myself, but the sensors rarely cause problems. Hopefully the new coils solve the problem.

Your Vulcan 750 does not have a computer. Isn't that wonderful?
04-28-2019 04:45 PM
Christian Johnston Update: I was fiddling around with the connectors trying to get the resistance reading from the rear coil and once I hooked everything back up the rear is firing again. I'm going to replace both coils just to make sure. Thank you for the advice.
04-28-2019 04:00 PM
Jason Pittenger I would suspect the pickup coils.
04-28-2019 03:08 PM
TonyO As the rear worked for a while I would check all the wires, connections and grounds first. Look for corrosion and dirt build up, the connectors on these bikes are really cheap (no silver or gold plating on the contact) and definitely not waterproof so they get a layer of corrosion very easily.

If you have a decent meter you should be able to see the pulses from the ignition module going to the coils.

You mention rear coils produces spark in front, did front produce spark in rear?
04-28-2019 01:59 PM
Christian Johnston
Rear Cylinder dead?

So I got my 1986 Kawasaki Vulcan 750. Brand new carb rebuild, new spark plugs, new battery. Front cylinder is firing just fine. Both spark plugs working. Two rear spark plugs have no spark. Swapped the coils and rear coil produced spark in the front. Once swapped back i had spark in the rear for about 20 minutes. After I run my bike for 10-15 minutes the rear engine is dead cold. I checked all my fuses and electrical connections. Thought maybe my computer was bad. Anyone have any idea?

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

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