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
dustin_bray

Just picked up an 05 WR450F

12 posts in this topic

Well, I'll soon be racing again. Sold the Duc and picked up a beautiful 05 WR450F today... it's PRIMO!!! Anyhow, all I've ridden is YZs, so I'm relatively new to the WRs. I would appreciate any and all suggestions for mods and some answers to a few questions:

1. Is the exhaust cam retarded one tooth like it used to be or is that just a myth?

2. Are there any other free mods I need to do than the grey wire mod, throttle stop, air box snorkle and the smog crap removal?

3. I have noticed that the exhaust cam plug replacements are not applicable to the 05 WRs... does this mean that Yamaha has fixed the plug-blowout problem? I haven't had a chance to look at the bike yet.

4. Is the stock drain plug magnetic? If not, I need to pick up one.

Think that's it for now. I'll appreciate all your replies. :banghead:

Share this post


Link to post
Share on other sites

Congrats on the new bike, your going to love it!!!!! As for your Q's I had an 03 WR450 and as far as i know thats all the free mods you can do to the bike. As for the timing thing its not werth it IMO. Cuz i did it to my bike it didnt change much, that i could tell anyway. And for Q # 3 the cam plug is no longer a problem, And as for the drain plug, im not sure. good luck, Hope I Have Helped. :banghead:

Share this post


Link to post
Share on other sites

Welcome to a better bike.

The timing is off one tooth from the YZ timing. Most of the people I have read from say that they changed it, then changed it back because it took away from the low end grunt that made them want the WR in the first place.

The decomp plug may be an issue depending on how far into '05 the bike was built. From what I have read..... some still had the plugs and the rest (like mine ) are solid casted over where the plug used to be.

OEM drain plug is not a magnetic type plug but you can get one from most dealerships easily.

My '05 is the best bike I have ever owned or ridden. Not to say that there isn't a better 4-stroke 450 out there, but I dont see how it can be too much better. Like the other dude said, "congratulations." . :banghead:

Share this post


Link to post
Share on other sites

The exhaust cam cannot be turned one tooth to get YZ timed, the WR has a de-comp pin for easy starting and it will not start when you do that :banghead:

Even my mechanic thought he could do it and it made him look like an ass.

The blow-out problem and swingarm/chain-guide prob seems to be fixed in 05 :banghead:

Drain plug not magnetic.

Share this post


Link to post
Share on other sites

Ah, it's good to get some solid answers. Thanks man. No one I had talked to had even heard of the swingarm problem, so I didn't even bother asking. Good to know it's taken care of though. As for the timing, I guess I would have to throw a YZ cam in there if it bothered me... which it didn't seem to in the parking lot. That's about all the ride time I'll be getting for a week or two. Sending parts out and ordering parts in... I'm gonna hit up my first race ALL decked out and ready to rock!!

Share this post


Link to post
Share on other sites

The bike kicks ass after it is broken in real good, maybe 500 miles. Just do all the free mods and jet with JD kit.

If still want more, then go aftermarket exhaust and Exhaust Hot Cam.

What are you racing?

I race desert and this bike is a sweet ride.

Share this post


Link to post
Share on other sites

I also just bought a WR 450 F but a 06. I haven't been in the dirt bike world for about 4 years and i have no clue about this bike. So i'm curious about the free mods. if someone could fill me in that would be great

Share this post


Link to post
Share on other sites

Already has a pipe and the JD jetting kit. :banghead: Pulling the suspension this weekend. Shitload of other stuff on order too. I race (will be racing) some enduros and offroad in Texas. TORO, TSCEC, and a couple TCCRA if you want specific orgs.

Does the Hot Cam have an auto decomp. yet? Couple years ago when I looked into it, they didn't...

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