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
doubledoyle

Help first bike WR 450 problems

22 posts in this topic

Hi guys,

Need some advice, I've just bought my first bike a 2004 wr 450.

Anyway I was told it had no issues and just wasn't needed. The owner delivered and at the time I was looking after my baby so didn't really have time to look at it before I handed over the cash. Big mistake!

Anyway the clutch won't disengage, the chain and sprocket is shot. The kick start is hanging off and the entire thing is held together with cable ties.

I was so looking forward to owning my first wr but looks like I've bought another project.

So my question is can any of you guys help me out with some advice?

Share this post


Link to post
Share on other sites

So you are saying you bought it without inspecting it at all?

Not sure what to say....

What specifically do you want help with?

Edited by KRANNIE

Share this post


Link to post
Share on other sites

In his defence I paid near $1000 dollars under market value so I should expect some issues.

Main one is the clutch, it's dragging bad in gear to the extent it stall. I pulled the plates earlier and visually inspected them..saying that I don't really know what to look for.

Is it worth changing the oil before changing out the clutch?

From memory the basket didn't lock notched

Share this post


Link to post
Share on other sites

From memory the basket didn't lock notched

Assuming you did check/adjust the clutch cable already,

get a fresh set of both steel and friction plate, and do soak the friction plates over night in engine oil before installing, each plate separately.

Make sure you know hot to install them or at least read the service manual on that topic

http://www.ymenvom.nl/new/manuals/M5TJ41.PDF

Share this post


Link to post
Share on other sites

I've tried adjusted the clutch on the lever, you can slip the clutch in the move the bike along but as soon as you completely release the clutch it will then not disengage, you can hardly push the bike in gear.

Share this post


Link to post
Share on other sites

Hi guys,

Anyway the clutch won't disengage, the chain and sprocket is shot. The kick start is hanging off and the entire thing is held together with cable ties.

 

Chain and sprocket sets are not too expensive.  At least the previous owner used cable ties and not rubber bands, string or duct tape.  When you buy your second bike, look it over carefully.  

Share this post


Link to post
Share on other sites

Yeah I should know better, I think I got what I paid for, once I've replaced all the parts I need it will still be cheap and at least everything is new. I was Hoping it would at least be rideable.

Share this post


Link to post
Share on other sites

Not unusual for a used bike to need a chain and sprockets ... and a clutch ... and tires. Would have been nice if the guy was up front with you instead of taking the cash and running.

I wouldn't worry so much about the clutch dragging or the bike not rolling while in gear just yet. Yes, do an oil change but more for inspection than anything. Check the oil for grit. Get the bike running before you worry about replacing the clutch. If it does need a clutch I'd recommend pulling the old clutch out and check the steels. If they're grooved or you see any bluing or heat marks replace all disks. Otherwise mic them to see if they are within spec. If so scuff the steels lightly with a Schotchbrite and replace only the frictions and springs. Replace the cable while you're at it - cheap insurance. As mentioned above soak your new frictions in motor oil overnight before installing. Good luck.

1 person likes this

Share this post


Link to post
Share on other sites

Cheers derek, I noticed the steels had black marks, im assuming by the heat..

Honestly it's just been badly uncared for. I've spent hours just cleaning. I'll get a clutch on order and try and upload some pictures..

Another issue I have is fork seals, they were replaced a few months back but one has already failed. Also forks don't seem to have any recoil

Share this post


Link to post
Share on other sites

I've tried adjusted the clutch on the lever, you can slip the clutch in the move the bike along but as soon as you completely release the clutch it will then not disengage, you can hardly push the bike in gear.

 

That is normal. When the motor gets real hot, it will get better, but unless you replace everything, and adjust the lever to be too far off the bar, it will always drag.

Share this post


Link to post
Share on other sites

Thanks for the advice krannie, how do I get on riding? It stalls when In gear, how do I up the idle? It struggles to tick over.

Share this post


Link to post
Share on other sites

Thanks for the advice krannie, how do I get on riding? It stalls when In gear, how do I up the idle? It struggles to tick over.

Did you look closely at the clutch basket and clutch hub?  Its not that uncommon to see them grooved bad and this will cause the clutch to drag because the plates are caught in the grooves, can also make the clutch slip. Here are some examples of what im talking about

 

https://www.google.com/search?q=clutch+basket&client=firefox-a&hs=56b&rls=org.mozilla:en-US:official&channel=np&source=lnms&tbm=isch&sa=X&ei=T32MVcOjEYGRsQWviZXYDA&ved=0CAgQ_AUoAg&biw=1350&bih=591#imgrc=SLbYSBw8eJz1XM%253A%3BYMH-_kAyTV2SUM%3Bhttp%253A%252F%252Fwww.thumpertalk.com%252Fuploads%252Fmonthly_06_2013%252Fpost-328985-0-17580600-1370478914.jpg%3Bhttp%253A%252F%252Fwww.thumpertalk.com%252Ftopic%252F1028206-have-you-seen-a-worse-clutch-basket-2010-yz125%252F%3B568%3B426

Edited by jmd426

Share this post


Link to post
Share on other sites

Thanks for the advice krannie, how do I get on riding? It stalls when In gear, how do I up the idle? It struggles to tick over.

 

You need to adjust the lever for 1/8" of play when HOT.

You warm up the motor, blip the throttle, and put it in gear at the same time. 

You should feel it drag a bit, but not much.

If you will not go into gear without stalling, you have another problem, like stuck plates or badly warped plates, or a worn out push rod and cam.

 

Virtually all of my bikes will stall if you put it in gear when running with a cold motor, as I have the clutch lever adjusted for my preffered reach, not maxium pull.

Share this post


Link to post
Share on other sites

Cheers the bike is fine in gear with the clutch in, it's when you release the clutch fully. Then it will not disengage, just bought plates and chain and sprocket kit.

Share this post


Link to post
Share on other sites

sounds like something is boogeredin the release mechanism, not so much the cable or the plates

Share this post


Link to post
Share on other sites

I'll change the plates out and see what happens, fixed the kick start tonight. The lever was worn out. I welded in some extra material and it's loads better.

Share this post


Link to post
Share on other sites

Cheers the bike is fine in gear with the clutch in, it's when you release the clutch fully. Then it will not disengage, just bought plates and chain and sprocket kit.

 

I don't understand this explanation.

 

Releasing the clutch lever causes engagment, not disengagement....

Share this post


Link to post
Share on other sites

Sorry once you have fully engaged first it will then not separate when you pull the clutch in.

Share this post


Link to post
Share on other sites

I had problems with my clutch replaced the clutch and ended up being the cable hangin on by a few strands of cable my 2 cents paco

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