Starting Problems - Kawasaki Vulcan Forum : Vulcan Forums
 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 07-04-2013, 09:32 AM Thread Starter
Senior Member
 
bigmacbkr's Avatar
 
Join Date: Dec 2009
Location: Alabama
Posts: 248
Angry Starting Problems

Recently my bike has experienced intermmitant starting where it might take several attempts before it will start. At 30000 miles it has original plugs and battery. At first it only after a long ride but yesterday it did it after only five miles. Any thoughts?

Happy 2009 1700 Nomad owner
bigmacbkr is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 07-04-2013, 09:59 AM
Top Contributor
 
reddyford's Avatar
 
Join Date: Apr 2009
Location: 50 miles NE of Buffalo
Posts: 2,001
Garage
I Googled that cause it's an interesting question and their's so many possible causes that I read for...well awhile. From decreasing levels of O2 when it gets hot, starter armature swelling drawing more amps, vapor lock from fuel line "heat soak" (This is much less of a problem on fuel injected engines because the fuel is usually under much higher pressure inside the injectors and fuel line. Even so, a fuel line routed near an exhaust manifold or a fuel rail that's exposed to a lot of heat may still suffer the same kind of problems), cooling problems that allow your engine to run too hot (the pistons swell up and may scuff the cylinder walls), and a bunch more possible causes.
reddyford is offline  
post #3 of 3 (permalink) Old 07-04-2013, 11:41 AM
Lifetime Premium
 
RACNRAY's Avatar
 
Join Date: May 2011
Location: SOUTH FLORIDA
Posts: 1,667
There could be one or a few causes of the hard starting. The 1700's use an iridium tipped plug that can possibly last 30,000+ miles. I believe we replaced a set of plugs that a customer brought us, his skoot had over 20,000 mls. His original plugs were in perfect shape. Unless you have had some FI tuning where the skoot is running rich I would not think the plugs would be the culprit.

It is well documented the 1700's intake system is prone,by design, to having intake vacuum leaks. These leaks can finally rear their ugly head over a short period of time (as in your case) or is a slow degradation. Either way they can contribute to hard starting and poor running.

Another thing I have experience with is an accumulation of carbon deposits in the throttle bore in the area where the throttle plates sit when the engine is idling. Performing a throttle bore/plate cleaning with a spray type carb cleaner and a bottle type brush may help.

One more thing..I have found the use of fuel injector cleaner on a regular basis helps to clean the injectors, all my vehicles get treated every 3000-5000mls or so and I can always feel an improvement in performance. I always use a double strength dose in a tank of gas, repeating in the following tank of gas.

Try the FI cleaner and cleaning the throttle bores first, both easy to do. If you have any questions feel free to call me at my shop 954-455-9665.

HOPE THIS HELPS

RACNRAY

"TRUE HAPPINESS IS IN THE HEART,NOT IN THE OUTSIDE FIXES!!"
WITH OVER 42 YEARS AS A MOTORCYCLE TECHNICIAN/HI-PO SHOP OWNER I AM A PURVEYOR OF FACT NOT FICTION!
"WE LIVE OUR LIVES IN CHAINS NEVER KNOWING WE HAD THE KEY"
RACNRAY is offline  
Sponsored Links
Advertisement
 
Reply

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



Similar Threads
Thread Thread Starter Forum Replies Last Post
'97 1500 Classic - Starting Problems Andyhaas Vulcan 1500 5 01-15-2011 01:38 PM
Starting problems Gershwin Vulcan 1500 9 11-07-2010 10:25 AM
Starting the bike in the morning problems edo Vulcan 500 13 11-04-2010 10:09 AM
2007 Vulcan 990 starting problems mykster Vulcan 900 3 06-18-2010 08:50 PM
Starting problems minton Vulcan 500 7 12-02-2009 06:47 AM

Posting Rules  
You may not post new threads
You may not 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