Shimming your main jet needles(All bikes need this) - Kawasaki Ninja 250R Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 08-24-2008, 12:35 AM Thread Starter
Member
 
Join Date: Aug 2008
Location: Tooele,Utah USA
Posts: 32
Shimming your main jet needles(All bikes need this)

I will do a DIY on this tomorrow, I need to reload the pics for it.
You may ask why I dont just link it or use another DIY, but there is a step that is missed in all other write ups, that I will clarify here.

Jason
jhcrash is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 08-24-2008, 12:39 AM
Senior Member
 
Malaqui's Avatar
 
Join Date: Jul 2008
Location: San Diego
Posts: 229
Send a message via AIM to Malaqui
i am waiting on this. i might just do this 2morrow. i have a k&n filter that i have been dying to put on, but fear that without a jet kit it will not work out too well.

Go Go Kawasaki Go!
Malaqui is offline  
post #3 of 16 (permalink) Old 08-24-2008, 12:51 AM Thread Starter
Member
 
Join Date: Aug 2008
Location: Tooele,Utah USA
Posts: 32
Quote:
Originally Posted by Malaqui View Post
i am waiting on this. i might just do this 2morrow. i have a k&n filter that i have been dying to put on, but fear that without a jet kit it will not work out too well.
You are right.It would lean it out so far it would barely run.
Did you buy the single oval filter k&n PN/ r-0990?
jhcrash is offline  
Sponsored Links
Advertisement
 
post #4 of 16 (permalink) Old 08-24-2008, 12:54 AM
Senior Member
 
Malaqui's Avatar
 
Join Date: Jul 2008
Location: San Diego
Posts: 229
Send a message via AIM to Malaqui
yep thats the one.

Go Go Kawasaki Go!
Malaqui is offline  
post #5 of 16 (permalink) Old 08-24-2008, 12:58 AM
Head Janitor
 
Vtec44's Avatar
 
Join Date: Jul 2008
Location: Fontana, CA
Posts: 699
Quote:
Originally Posted by Malaqui View Post
i am waiting on this. i might just do this 2morrow. i have a k&n filter that i have been dying to put on, but fear that without a jet kit it will not work out too well.
To be honest, I haven't worked on carbs enough or own the 250R enough to know for sure. But theoretically, since you're adding more air to the mixture, you should also add more fuel to compensate (richen). So, moving the clip on your needle down a few notches should do the job... well depends on how much more fuel you need in the mixture of course. I checked my spark plugs the other day and it seems to be normal, since my bike is completely stock anyway.
Vtec44 is offline  
post #6 of 16 (permalink) Old 08-24-2008, 01:00 AM Thread Starter
Member
 
Join Date: Aug 2008
Location: Tooele,Utah USA
Posts: 32
Quote:
Originally Posted by Malaqui View Post
yep thats the one.
It is the perfect filter for this bike. I like it much better than the single pods most people like to run it has a better chance of staying on the carbs .

On a side note if you go to outerwears .com you can buy an outerwear for it they run like $25 or something and that is for the waterproof one.They come in like 6 colors. I have a blue one on order right now.If you dont know what it is it is a pre filter to help keep stuff out of the filter.

They have it under the k&n part #
jhcrash is offline  
post #7 of 16 (permalink) Old 08-24-2008, 01:04 AM Thread Starter
Member
 
Join Date: Aug 2008
Location: Tooele,Utah USA
Posts: 32
Quote:
Originally Posted by Vtec44 View Post
To be honest, I haven't worked on carbs enough or own the 250R enough to know for sure. But theoretically, since you're adding more air to the mixture, you should also add more fuel to compensate (richen). So, moving the clip on your needle down a few notches should do the job... well depends on how much more fuel you need in the mixture of course. I checked my spark plugs the other day and it seems to be normal, since my bike is completely stock anyway.
Unfortunately our needles dont have clips like the rest of the world so they have to be shimmed with small washers.

Our bikes actually run lean on the bottom end (Hence the long warm up period) so even on a stock bike adding 1 or 2 washers to the needles wakens the whole power range up a bit.

I will get to explaining all this better in the DIY i do.
jhcrash is offline  
post #8 of 16 (permalink) Old 08-24-2008, 01:04 AM
Senior Member
 
Malaqui's Avatar
 
Join Date: Jul 2008
Location: San Diego
Posts: 229
Send a message via AIM to Malaqui
interesting stuff.

so when should i expect the write up so i can start put the damn thing on?

Go Go Kawasaki Go!
Malaqui is offline  
post #9 of 16 (permalink) Old 08-24-2008, 01:06 AM
Head Janitor
 
Vtec44's Avatar
 
Join Date: Jul 2008
Location: Fontana, CA
Posts: 699
Quote:
Originally Posted by jhcrash View Post
Unfortunately our needles dont have clips like the rest of the world so they have to be shimmed with small washers.
Now you know what I mean by I haven't worked on carbs or own the 250 long enough.
Vtec44 is offline  
post #10 of 16 (permalink) Old 08-24-2008, 01:12 AM
Senior Member
 
Malaqui's Avatar
 
Join Date: Jul 2008
Location: San Diego
Posts: 229
Send a message via AIM to Malaqui
uggghhhh..... stale warm beer is making me go crazy....

if i keep reading im gonna do it right now.

Go Go Kawasaki Go!
Malaqui is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Tags
bikes, jet, main, needlesall, shimming

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Ninja 250R Forum 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










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