2006 Yamaha WR 450f Performance Mods?
Posted December 08, 2005 - 01:45 PM
Also, here's the mod's done thus far - opened the air box, added an easy to access fuel screw, have a YZ throttle stop, pulled the grey wire and I'll be putting in a PMB insert later today (waiting for it to arrive).
The bike is still not broken in and I was hoping to have everything all set for this weekend. Since I don't have all the jets and an adjustable needle, should I still add the main jet and pilot or leave them stock for now and leave the modes llisted above "as" is for now?
Posted December 08, 2005 - 02:43 PM
Posted December 09, 2005 - 11:25 AM
1.) Removed the grey-wire (Free)
2.) Added an adjustable Fuel Screw (set at a full 2 turns out) ($20)
3.) Added a MJ 168 and 48 PJ (as recomended) (a few bucks)
4.) Added a YZ 450 throttle stop screw (a buck or two)
5.) Added a PMB exchaust insert ($59.95)
6.) Open the air box openings (Free)
In short, the bike started almost immediately to my delight. The stock bike was VERY difficult to start so this alone was impressive.
Took it for a spin to see if all the hype surrounding the "Performance Mods" was justified. OMH, this think hauls ass now. It feels like a different bike, just as everyone indicated. I am SO impressed and want to thank everyone for all their help on this topic.
It's such an improvement over stock, it's difficult to describe the transformation other than the stock bike just feels "choked.". The "NEW" bike feels like a race bike and pulls so strong in comparision and revs much better. I'm still in shock at the moment since the improvment is so profound. It now feels like the bike that I thought I was getting off the show-room.
If anyone has questions relating to anything that I've done or needs help (I'm now an instant expert) let me know.
Just need to do some suspension tweeking now.
Posted December 09, 2005 - 10:44 PM
Posted December 10, 2005 - 09:30 AM
I bought the zip-ty mixture and will be installing that in a few days. I also have removed the AIS, throttle screw but not the grey wire.
I have not done anything with my airbox or exhaust as I want to keep my bike real quiet. I heard the pmb insert is a lot louder than stock.
Posted December 10, 2005 - 04:51 PM
Posted December 12, 2005 - 10:11 PM
Thanks again for your assistance with performing my FREE mods!!!!
Posted December 12, 2005 - 10:17 PM
Get a decent pipe and you can have that feeling all over again!
Posted December 13, 2005 - 10:19 AM
The 48 was too rich because the bike would idle with the screw all the way in and felt fat. And with the 45 the bike is very crisp.
The 168 also felt blubbery and the 165 has added some quickness to the top end which is why I might try the 162.
BTW- Pipe tip, Power Now and Uni filter installed. And I ride everywhere and all year.
I'd like to try the JD red needle if anyone wants to sell one. (I don't need or want the rest of the kit) PM me if you do.
Posted December 13, 2005 - 12:35 PM
Posted December 14, 2005 - 10:02 AM
Zip-Ty Fuel Screw
JD Jetting Kit JDY001
What else do I need and where do I get them? Also, let me know if that is not the right fuel screw. Does the JD Kit come with all of the jets I need? I am new to this so any help is really appreciated.
60 to 75 degrees: 168 main, JD Blue #3 or JD Red #5, 48 Pilot, 1.5 turns, 70 starter jet, #40 leak jet
75 to 90 degrees: 165 main, JD Red #5, 48 Pilot, 1.25 turns, 68 starter jet, #50 leak jet
90 degrees plus: 160 main, JD Red #4, 45 Pilot, 2.0 turns, 65 starter jet, #60 leak jet
Posted December 14, 2005 - 10:22 AM
Posted December 27, 2005 - 01:10 PM
Main Jet = 165
Pilot Jet = 45
Pilot Air Jet = 80
Starter Jet = 65
Leak Jet = 50
Posted December 30, 2005 - 11:14 AM
-Pro-Circuit T-4 full exhaust (no spark arrest)
-JD jet kit
-Zip-Ty fuel screw
-YZ throttle stop
-Assortment of pilot, leak, and starter jets
-NGK Iridium plug (CR8EIX)
A couple of hours getting the jetting just right this morning and see ya stock POS WR!
The bike is not even the same.....power, starting, and throttle response is unimaginable now. Thanks TT and everyone that has posted on this thread.
Posted December 31, 2005 - 09:33 PM
Posted January 01, 2006 - 04:07 AM
I take the tank off to get to the plug, I don't think you can get it out otherwise. Just 6 bolts anyway! 2 for seat, 2 for rad scoops (front bottom), 2 for tank. undo clip next to battery, pull off fuel hose, and tank comes off.
what did you have to do to change plugs? Do you need to remove the tank or other components to get to it?
Just pull out the coil (plug lead) and get your bendy plug spanner and pull it out. Make sure it is free from crap down there before you pull the plug out. Some air to blow it out is good.
Posted January 09, 2006 - 01:59 AM
Posted January 12, 2006 - 11:18 AM
Where can I get in the net, a, BOYESEN ACCELERATOR PUMP COVER ?
Can I find it at the TT Store ?
Here in Brazil I could not find it anyware !
05 WR 450
Order it from Chaparral.com. I got it from them and it was about $90 with shipping and handling. I don't know what their international shipping policy is though. Type in Boyesen and it will come up.