start on one cylinder. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

 2Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 10-14-2018, 09:13 AM Thread Starter
Junior Member
 
Join Date: May 2018
Location: Minsk RB
Posts: 6
iTrader: (0)
 
Send a message via Skype™ to Ssergg
start on one cylinder.

Hey. I live in Minsk, Belarus, and I immediately forgive me for my poor English.
I dropped my bike with the engine running.
After that, I could not start it anymore.
In search of a problem, I accidentally overheated that it was easy to start on one cylinder.
My friend had a similar problem and the solution was to completely replace the electrical wiring.
Maybe there is a simpler solution to this problem?
Ssergg is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 10-14-2018, 10:47 AM
Senior Member
 
ubertalldude's Avatar
 
Join Date: Jun 2016
Location: NE Florida
Posts: 640
iTrader: (0)
 
your English is understandable.

does the engine spin when you press the start button? dropping the bike with the engine running should not cause electrical damage unless you were traveling quickly. check the switch on the sidestand / kick stand, that would be my first thought. there are several other switches on the motorcycle that could cause the engine not to spin when you press start, and there are ways to bypass them. we can help figure them out with you as long as you have electrical and mechanical knowledge

Earshave+Rejet (38/135) – NGK Iridiums – MCCT Conversion – Slipstreamer S03 Windshield – Custom Extended Backrest – Custom Highway Bars – MOSFET R/R – LED Underglow – Volt+USB In-Dash – Two-Wire & Blue-Wire Mod – Satin Black Engine Paint – Dampers Parts - Jets: Main=99101-393(#132 stock)/Pilot=n424-22 Pilot(#38 stock)
ubertalldude is online now  
post #3 of 13 (permalink) Old 10-14-2018, 11:05 AM Thread Starter
Junior Member
 
Join Date: May 2018
Location: Minsk RB
Posts: 6
iTrader: (0)
 
Send a message via Skype™ to Ssergg
Perhaps the fall of the motorcycle and the problem appeared just a coincidence in time.
I think if the engine runs on one cylinder is not a mechanical problem.
I press the start button and the starter turns the engine, but the engine does not start.
I unscrew the candle from the front cylinder and put it on the wire.
I press the start button and the engine starts and runs.
I see a spark on the twisted candle.
Based on this, we can assume that the ignition coil and spark plug are intact.
I put the candle in the cylinder, press the start button, the starter turns the engine, but it does not start.
I did this with both candles in the front cylinder several times with the same result.
I checked the petrol enters both cylinders
All four candles give off a spark.

I performed Blue Wire & Two Wire mods this spring.
And I drove more than 2000 kilometers during the season and had no problems with a motorcycle.


Last edited by Ssergg; 10-14-2018 at 12:41 PM.
Ssergg is offline  
 
post #4 of 13 (permalink) Old 10-14-2018, 06:26 PM
Senior Member
 
Spockster's Avatar
 
Join Date: Nov 2012
Location: WV
Posts: 6,278
iTrader: (5)
   
Could it be one cylinder filling up with gas? I'm just going by the way it sounded when you started it.

The engine rolled over, stopped, then you had to hit the starter again and it repeated. I didn't see any gas blow out of the open plug hole ... Does it blow anything out of the pipes when it starts? Does the oil smell like gas, or is overfull?

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
Spockster is offline  
post #5 of 13 (permalink) Old 10-15-2018, 12:58 AM Thread Starter
Junior Member
 
Join Date: May 2018
Location: Minsk RB
Posts: 6
iTrader: (0)
 
Send a message via Skype™ to Ssergg
I smell gasoline from an open cylinder. When I twist the candles they are wet
Ssergg is offline  
post #6 of 13 (permalink) Old 10-15-2018, 10:04 AM
Senior Member
 
readparse's Avatar
 
Join Date: Oct 2016
Posts: 167
iTrader: (0)
 
Garage
Today I learned that spark plugs are called "ignition candles" in some places. I like it.

1986 Vulcan 750
Purchased June 2018, as a first bike.
Put 1,300 miles on it so far.
Location: Murfreesboro, TN

AGM Battery, Iridium Plugs
SeaFoam does wonders, and I'm protected by Ride-On
Back tire: Dunlop Challenger.
Front tire: Dunlop Challenger, but about to replace it with a Kenda Cruiser.
readparse is offline  
post #7 of 13 (permalink) Old 10-15-2018, 10:28 AM
Senior Member
 
Spockster's Avatar
 
Join Date: Nov 2012
Location: WV
Posts: 6,278
iTrader: (5)
   
I'm thinking it might have a stuck float in one of the carbs. Would be the front cylinder since the other one runs.

Can you get it to start on the front cylinder only, as you did with the rear?

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
Spockster is offline  
post #8 of 13 (permalink) Old 10-15-2018, 01:34 PM Thread Starter
Junior Member
 
Join Date: May 2018
Location: Minsk RB
Posts: 6
iTrader: (0)
 
Send a message via Skype™ to Ssergg
I could not repeat yesterday’s experience. Motorcycle did't start.
I unscrewed the spark plugs from both cylinders. The power of the spark is different on them three times. Tomorrow I'll go to the store for a new set.
set 4 DENSO Iridium Power IX22B were installed at the very beginning of spring.
I'm not sure this will help, but I need to move on.
Ssergg is offline  
post #9 of 13 (permalink) Old 10-15-2018, 02:03 PM
Senior Member
 
ubertalldude's Avatar
 
Join Date: Jun 2016
Location: NE Florida
Posts: 640
iTrader: (0)
 
You should probably put the battery on a charger, I don't see the need to replace the candles. The battery is probably weak from cranking it and giving you weak spark. Maybe try tapping the carburetors with the plastic end of a screwdriver to free up what appears to be a stuck float. crank the engine with all candles removed to get the gas out of the cylinders, then try to start the engine with a freshly charged battery, you may get lucky

Earshave+Rejet (38/135) – NGK Iridiums – MCCT Conversion – Slipstreamer S03 Windshield – Custom Extended Backrest – Custom Highway Bars – MOSFET R/R – LED Underglow – Volt+USB In-Dash – Two-Wire & Blue-Wire Mod – Satin Black Engine Paint – Dampers Parts - Jets: Main=99101-393(#132 stock)/Pilot=n424-22 Pilot(#38 stock)
ubertalldude is online now  
post #10 of 13 (permalink) Old 10-15-2018, 02:18 PM
Senior Member
 
Spockster's Avatar
 
Join Date: Nov 2012
Location: WV
Posts: 6,278
iTrader: (5)
   
I agree, the candles are probably ok.

Agree also, charge battery, and tap on the front carb bowl to free up the float inside.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
Spockster is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

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










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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