Shaping up a long-idle Vulcan 500 - Kawasaki Vulcan Forum : Vulcan Forums
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 11-24-2012, 10:59 PM Thread Starter
Junior Member
 
Join Date: Nov 2012
Location: Cocoa FL
Posts: 5
Shaping up a long-idle Vulcan 500

Now that I have my Beemer (old but golden K-75 RT) to ride, guilt in me said I really needed to fire up the wife's 2000 EN500 C-5 (Vulcan LTD) so that we could go riding together.
I knew those Keihin carbs respond poorly to long periods of not running. So I bought a set of jets (from CarbJetKits [carbjetkits.com]) and surprised myself how easily I cleaned up all the parts, replaced the pilot and main jets and added a spacer that came with the kit to the main needles. BY FAR the biggest pain in the ass is getting the pair back in place, both the squeeze past the manifolds and getting the throttle cables hooked back on.

Battery charge, oil change and she fired right up!

However, the engine still bogs when you get to about a quarter throttle, and if you insist by further opening the throttle, acceleration is sluggish, punctuated by the occasional surge as a hint to how quick the bike should be.

Everything is stock. I have the petcock on PRI so I know the carbs are getting fuel. What to try next? Could the air filter be so dirty she can't breathe? (Will look at that tomorrow).

Any ideas much appreciated.
Geoff S is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 11-25-2012, 07:26 AM
Senior Member
 
kfolse107's Avatar
 
Join Date: Feb 2012
Location: Louisiana
Posts: 307
Garage
Maybe with the petcock on Pri, you're getting too much fuel? Just guessing.

I care more about SPG (smiles per gallon) than MPG (miles per gallon)

2009 Vulcan 500 LTD
Scootworks Risers
Slipstreamer Enterprise windshield
Protac driver backrest
Rumble Road speaker system
River Road saddlebags
Priority Plus tail light module
Kuryakyn chrome accessory plug
Kuryakyn ISO grips (6235)with Throttle Boss
JTF512 17tooth sprocket
"Manuel/Vicente" custom engine guard
Hardley highway pegs (freebies)
http://www.brothersinblue.org
kfolse107 is offline  
post #3 of 5 (permalink) Old 11-25-2012, 09:45 AM
Top Contributor
 
bikerbill's Avatar
 
Join Date: Dec 2009
Location: Levelland, TX
Posts: 1,454
Geoff,

Try looking for missing parts in the airbox. A missing 'snorkel' on the top of the airbox will cause the symptoms you mention. Take a look at the spark plugs too. They will tell you if you are bogging rich or lean.

--
'Biker' Bill
'97 EN500LTD 'Hidalgo'
175,000+ miles so far
VROC #3833
IronButt #6024
Levelland, TX

SlipStreamer Enterprise II, Vista Cruise,
Fiamm air horns, Cobra Spots, Drifter solo seat,
Pro-Tac backrest, 17/42 sprockets, Darkside rear,
ScottOiler, F&S luggage rack ,Throttle Rocker,
Viking bags, Victory Vegas handlebars,
Kuryakyn grips, LED & HID lighting,
4-gal AUX fuel tank

http://bikerbillsvulcan500rebuild.shutterfly.com/
bikerbill is offline  
post #4 of 5 (permalink) Old 11-25-2012, 01:13 PM Thread Starter
Junior Member
 
Join Date: Nov 2012
Location: Cocoa FL
Posts: 5
Quote:
Originally Posted by bikerbill View Post
Geoff,

Try looking for missing parts in the airbox. A missing 'snorkel' on the top of the airbox will cause the symptoms you mention. Take a look at the spark plugs too. They will tell you if you are bogging rich or lean.
Thanks, I pulled out the air filter this morning (thanks to forum help on where it resides!) and it is ROTTEN! One panel of 9 in the truncated triangle has the foam nearly gone, and half the sealing edge foam on the perimeter is missing or rotten! Will obviously get new one, but now I'm concerned that foam dust may have made it through the wire filter and...be clogging an intake valve? Or can an engine breathe and expel that sort of debris?
Geoff S is offline  
post #5 of 5 (permalink) Old 11-25-2012, 01:39 PM
Top Contributor
 
bikerbill's Avatar
 
Join Date: Dec 2009
Location: Levelland, TX
Posts: 1,454
Inspect the airbox itself as the missing air filter material may have simply fallen into the airbox. Take a peek through the slot the air filter hole and/or the 'snorkel' hole. If the 'foam dust' is fine enough it should go through the engine with little issue. If you are truly concerned about it perform a cylinder leakdown test. (A compression test would be inconclusive.)

When looking for a replacement filter consider that K&N makes an OEM replacement filter for the 500C that I think is much more durable than the original filter.

--
'Biker' Bill
'97 EN500LTD 'Hidalgo'
175,000+ miles so far
VROC #3833
IronButt #6024
Levelland, TX

SlipStreamer Enterprise II, Vista Cruise,
Fiamm air horns, Cobra Spots, Drifter solo seat,
Pro-Tac backrest, 17/42 sprockets, Darkside rear,
ScottOiler, F&S luggage rack ,Throttle Rocker,
Viking bags, Victory Vegas handlebars,
Kuryakyn grips, LED & HID lighting,
4-gal AUX fuel tank

http://bikerbillsvulcan500rebuild.shutterfly.com/
bikerbill is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan Forum : Vulcan Forums 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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



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