Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - Reply to Topic
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!

Thread: Cobra Pipes for my VN750 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)
05-24-2011 11:46 PM
baldy X2 on what Hoss said.
05-24-2011 05:20 PM
OlHossCanada
Quote:
Originally Posted by n2omike View Post
You might not HAVE to re-jet, but today's bikes are already very lean from the factory, and adding a less restrictive exhaust just leans it out more. It's a PITA to re-jet a Vulcan, but there are significant gains to be made by doing so when swapping out the exhaust.

You should be able to search jetting, and find out what people are doing.

Good Luck!
The breathing restriction on the vn750 is not the stock exhaust, but rather the air intake. Only when the intake is modified with an ear shave and putting on freer flowing pod filters is rejetting required.

It is true that today`s motorcycles are tuned lean from the factory. The vn750 can can usually be sufficiently enrichened by turning out the fuel/air mixture screw as long as it still has a stock intake. Aftermarket exhaust should not further lean the mixture in this case.
05-24-2011 04:23 PM
Scootergptx When I put mine on, I checked the plug color. Color was fine on the plugs, did have to adjust the air mix screw. Don't know if it matters, but the bike is marbled too.
05-16-2011 10:32 PM
n2omike You might not HAVE to re-jet, but today's bikes are already very lean from the factory, and adding a less restrictive exhaust just leans it out more. It's a PITA to re-jet a Vulcan, but there are significant gains to be made by doing so when swapping out the exhaust.

You should be able to search jetting, and find out what people are doing.

Good Luck!
05-16-2011 09:54 PM
Krk4420 Thank You!
05-10-2011 09:56 PM
cm4cm5 you do not have to re-jet. you may have to adjust your air/fuel mixture screws to reduce any popping on deceleration, if any develops.
05-10-2011 09:15 PM
Krk4420
Cobra Pipes for my VN750

I just ordered Cobra mufflers for my 2006 Vulcan 750. The guy told me I may have to re-jet the carb. Should this improve my bikes performance... What do you think???

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