Straight pipe.rejet? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 04-09-2011, 06:21 PM Thread Starter
Member
 
Helmdog58's Avatar
 
Join Date: Apr 2011
Location: St.Augustine Florida
Posts: 69
iTrader: (0)
 
Straight pipe.rejet?

I keep hearing about havign to rejet your bike after coverting to straight pipes. Does anyone have any experience in this subject, or have any insight on the subject

2006 Vulcan 750
Bone stock for now

future plans:
Ape Hangers
exhaust
lower
slim down all the lights
Smaller seat


Let me know if you have anything i might need

GO GATORS!
Helmdog58 is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 04-09-2011, 06:48 PM
Senior Member
 
dynajim's Avatar
 
Join Date: Feb 2011
Location: FL
Posts: 140
iTrader: (0)
 
Well, I haven't done it with this machine. But My experience after many yrs of wrenching pretty much anything is that if all you do is remove the baffles you can sometimes get away without re-jetting. However, you're much better off(so is your motor) in re jetting. cause you just leaned out an already lean machine(from the factory to pass emissions).
Also, if you remove the baffles AND change the amount of intake air (Ear shave for VN's) like adding a K&N, YOU MUST RE JET!. Otherwise you'll see excessive bluing on the head pipes. It could also result in burnt valves too! my .02


'94 VN 750 17k mi. Aqua, Memphis shade.
Acquired 2/2011
Oiled
Tank cleaned
New Fork seals
Marbled
Idle jets-RT-3.0, Lft-2.5 turns
Sea Foamed
New Batt for grins
Stupid hose in the rt ear found and fixed
Major clutch adj.
New Petcock
New Shimko tires
De-goated before I got it.
Iridium plugs
YEA! New choke cable!!
Gonna do the Spline Lube soon(Chged tires before I found this site)

Replacement for my FXDWGI
Why didn't I find these before I spent $22 grand!!
dynajim is offline  
post #3 of 16 (permalink) Old 04-09-2011, 06:55 PM Thread Starter
Member
 
Helmdog58's Avatar
 
Join Date: Apr 2011
Location: St.Augustine Florida
Posts: 69
iTrader: (0)
 
no need to rejet if I drill baffles?

2006 Vulcan 750
Bone stock for now

future plans:
Ape Hangers
exhaust
lower
slim down all the lights
Smaller seat


Let me know if you have anything i might need

GO GATORS!
Helmdog58 is offline  
 
post #4 of 16 (permalink) Old 04-09-2011, 08:36 PM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,650
iTrader: (4)
     
Garage
Quote:
Originally Posted by Helmdog58 View Post
no need to rejet if I drill baffles?
No.

KM

If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
Knifemaker is online now  
post #5 of 16 (permalink) Old 04-09-2011, 09:00 PM
Senior Member
 
clock152's Avatar
 
Join Date: Jul 2009
Location: Glenpool, Oklahoma
Posts: 900
iTrader: (1)
 
no.. not on our bikes.. but you might want to turn the air mix screws out about 2.5 to 3 turns
clock152 is offline  
post #6 of 16 (permalink) Old 04-09-2011, 09:48 PM Thread Starter
Member
 
Helmdog58's Avatar
 
Join Date: Apr 2011
Location: St.Augustine Florida
Posts: 69
iTrader: (0)
 
Is drilling the baffles worth it? Improve sound? What about the performance? And how many holes should I drill i was gonna use a 3/8 inch bit

2006 Vulcan 750
Bone stock for now

future plans:
Ape Hangers
exhaust
lower
slim down all the lights
Smaller seat


Let me know if you have anything i might need

GO GATORS!
Helmdog58 is offline  
post #7 of 16 (permalink) Old 04-09-2011, 09:53 PM
Senior Member
 
clock152's Avatar
 
Join Date: Jul 2009
Location: Glenpool, Oklahoma
Posts: 900
iTrader: (1)
 
Dirttrack will be jumping in here.. he has a good write up on drilling the baffels.
clock152 is offline  
post #8 of 16 (permalink) Old 04-09-2011, 10:02 PM Thread Starter
Member
 
Helmdog58's Avatar
 
Join Date: Apr 2011
Location: St.Augustine Florida
Posts: 69
iTrader: (0)
 
I want to straight pipe it or do v&ns just on a tight budjet being a small business owner isn't necesarily flurishing in this economy but that's a whole nother subject that doesn't need to be brought up lol

2006 Vulcan 750
Bone stock for now

future plans:
Ape Hangers
exhaust
lower
slim down all the lights
Smaller seat


Let me know if you have anything i might need

GO GATORS!
Helmdog58 is offline  
post #9 of 16 (permalink) Old 04-19-2011, 03:41 AM
Junior Member
 
Join Date: Sep 2010
Location: Palmer, Alaska
Posts: 13
iTrader: (0)
 
staight pipe rejet

I put vance & hines on my 04 last summer. I recommend the rejet highly. Its not very hard. In fact the shop sold me the same primaries that I had so come winter I think I'll pull the carbs and increase them. I went up 2 sizes in the secondary if I remember correctly. I'll check on that. I stll need to (ear) in. Just learned that trick today.
camai is offline  
post #10 of 16 (permalink) Old 04-19-2011, 10:06 AM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,650
iTrader: (4)
     
Garage
Quote:
Originally Posted by Helmdog58 View Post
I want to straight pipe it or do v&ns just on a tight budjet being a small business owner isn't necesarily flurishing in this economy but that's a whole nother subject that doesn't need to be brought up lol
Then save your money and leave your exhaust alone. Keep the world peaceful.

KM

If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
Knifemaker is online now  
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