HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Tonyf6188

06 WR450 Mods

11 posts in this topic

I am new to this forum and the WR! I have a few questions. If I do the mods to the new bike (Air box cut out, AIS removal, Baffle removal, Throttle stop screw, Grey wire disconnect) will I have to re-jet the bike for it to run properly and be dependable?

Share this post


Link to post
Share on other sites
I am new to this forum and the WR! I have a few questions. If I do the mods to the new bike (Air box cut out, AIS removal, Baffle removal, Throttle stop screw, Grey wire disconnect) will I have to re-jet the bike for it to run properly and be dependable?

Yes. If you introduce more air (airbox mod, pipe mod) you will make the engine run leaner. It already comes too lean from the factory. Buy a jetting kit (JD) and learn about the Accelerator pump mods too.

Share this post


Link to post
Share on other sites

No offense to anyone, you have to learn somewhere.

But Im still really amazed at how many times this same

question comes up. Guess it just seems that riders would

understand that more air in, and more air out would

require more fuel to maintain the proper air/fuel ratio.

I think its time we all get Closed Loop EFI systems that

will self adjust to the changes.....:lol:

Share this post


Link to post
Share on other sites

I guess I should have been a little more clear in my question. What I meant to ask is am I going to have to re-jet the carb other than the new jets that come with the AIS removal kit. From what I am told it comes with everything you need including all the new jets needed. Maybe that is a little more direct question.

Share this post


Link to post
Share on other sites
I guess I should have been a little more clear in my question. What I meant to ask is am I going to have to re-jet the carb other than the new jets that come with the AIS removal kit. From what I am told it comes with everything you need including all the new jets needed. Maybe that is a little more direct question.

Check out the post by Indy WR450 for jetting specs. I believe the AIS removal jet that comes with the kit is a 170. From all I have read, this is too rich. I used the AIS removal kit but also got the JDJetting kit to handle the jetting. I went with the 168 main and 48 pilot and the other jets that came with the JD kit.

http://www.thumpertalk.com/forum/showthread.php?t=411240

Share this post


Link to post
Share on other sites
Check out the post by Indy WR450 for jetting specs. I believe the AIS removal jet that comes with the kit is a 170. From all I have read, this is too rich. I used the AIS removal kit but also got the JDJetting kit to handle the jetting. I went with the 168 main and 48 pilot and the other jets that came with the JD kit.

http://www.thumpertalk.com/forum/showthread.php?t=411240

I just did this modifications 2 weeks ago and turned out with a 170 main and 48 pilot. Here are the results:

dynojetkurvewr450.jpg

Share this post


Link to post
Share on other sites

Now that I have done all of the mods I am having two issues. (1) I still have the bog with a whack of the throttle and (2) after riding for several minutes and cranking on the throttle alot, the bike idles really high. If I put in a lower gear, let off the clutch, and then re-engage the clutch, the high idle goes away but comes back later if I allow the bike to stay idling. It does not do this until I have ridden a little while. From a cold start it idles fine and does not do that even when it starts to get really hot. I now have the JD kit and will install along with a 40 Leak jet. What else can I do to fix these two problems?

Share this post


Link to post
Share on other sites

tony, adjust your accellerator pump if you havnt. this makes a huge difference.

i also went with lower gearing in the front to make it snappier.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0