2007 WR450 Performance Mods
Posted December 26, 2006 - 05:10 AM
Posted December 26, 2006 - 04:18 PM
Posted December 26, 2006 - 05:06 PM
Posted December 26, 2006 - 07:27 PM
Posted December 26, 2006 - 08:26 PM
I just got the 07 WR 450 and it's my first 4 stroke. What are the mods needed asap? It feels pretty plugged up for a 450.
Read the Newbie Sticky!!!!...SC
Posted December 28, 2006 - 12:55 PM
Carb screw shortened
Air box opened
Inner tube in exhaust removed
Grey wire disconnected.
I started after the jetting last night, I removed the rear subframe, exhaust, shock for access. This is not a two minute job. I have a JD kit and a fuel screw on the way, however I am not sure when it will get here. I am debating on putting this back together or just waiting for the kit. I have the 170 main and 48 pilot in.
Does anyone think the spark plug is changeable with the engine in the frame?
Is there a better way to access the carb as opposed to removing all of this hardware?
The vent on the starter, what is its purpose?
I need to lighten this bike for racing, any ideas?
Posted December 28, 2006 - 01:01 PM
Posted December 28, 2006 - 07:09 PM
Posted January 02, 2007 - 11:25 AM
Posted January 02, 2007 - 11:30 AM
Posted January 02, 2007 - 11:38 AM
When I bought my 07 I had the service department handle the AIS and jetting, 50 and a 170. The service guy said that he plugged up the hoses but did not remove it. Does that work? It still pops bad on decel, is that the air/fuel screw or is the AIS not blocked off? Any ideas?
That sounds like a half-ass job to me. If everything is blocked off then remove the two screws and get rid it. My guess is that it is still there because they they don't have an 07 kit and didn't have anything to block the exhaust port so they just blocked the hose connections. If the hoses are just laying there it is still going to suck air (dirty air).
Posted January 02, 2007 - 12:06 PM
Posted January 02, 2007 - 12:34 PM
There is a plug in the small hose, not the larger one by the header. I think I need to just pull it off and plug it up. The carb is drilled out to get to the air/fuels screw its almost impossible to adjust without rotating the carb, will a aftermarket $20 screw fit in there.
Yes, or you can make one like on page 2
Posted January 02, 2007 - 03:01 PM
Is the cooling system identical to the YZ's? Those YZ Rads look way to small to keep this beast cool in the tight and technical that ride up here the PNW. They also look as if they would not hold up very well to an impact, side or front.
If they are the same as YZ rads does anyone know if Fluidyne has a set made up yet? (Yes, Clark I know I'll check the website:busted: ). How bout a good set of Guards yet, anyone if flatland, rooster or anyone else have a set yet?
Thanks guys! Hopefully by the time I get mine in March everything will be figured out for me:applause:
Posted January 02, 2007 - 04:01 PM
Will an 06 YZ450 aftermarket slip on exhaust fit for the 07 WR450? Will the full system fit as well? Also, will an 07 YZ450 fit and 07WR450? Any clues??? Thanks!
yes they will fit ,u just have to use the pipe donut off the inside of the 07 wr muffler.( the header on the wr is smaller )
Posted January 02, 2007 - 04:02 PM
Posted January 02, 2007 - 05:25 PM