Yamaha WR250R Mega Thread

[MeefZah]

Originally Posted by bobbed06

Instead of chopping the throttle tube for various hand guards I drill the center of the tube so it retains the full length and still allows for the hand guard hardware. I think Motion Pro makes an aftermarket throttle tube with no grip installed? They did for my DRZ

I suppose you could drill the end but realistically, if you perpendicular cut like 1mm of the plastic off the end, the hollow core is exposed. I think drilling would be a lot more time consuming. My post was just designed to communicate that it's probably not necessary to replace the throttle tube even though the PO cut it way shorter than need be.

[KansasBob]

^^^^^^^^^^^^^^^^^^^^^^ 9 bucks shipped

http://www.ebay.com/itm/Motion-Pro-Y...1d3e67&vxp=mtr

[shep546]

Originally Posted by bobbed06

I know they are only cosmetic but those side panels make the WR look a lot better. Maybe a group buy to save shipping costs? Now I need to buy a WR to put these on

If you spend over $500 they will ship to the U.S. for free but only 1 address. Then you'd have to pay extra to ship to individual addresses.

[bobbed06]

Originally Posted by MeefZah

I suppose you could drill the end but realistically, if you perpendicular cut like 1mm of the plastic off the end, the hollow core is exposed. I think drilling would be a lot more time consuming. My post was just designed to communicate that it's probably not necessary to replace the throttle tube even though the PO cut it way shorter than need be.

Sorry I didnt read too much into the previous posts before I posted. Thanks for posting a link KansasBob

Yes drilling is more time consuming, and cutting it minimally is an option. but I have gorilla mitts and I need the extra width or my hands get jammed in between the hand guard or I have the outside of my palm hanging off the grip. Just sharing a tip I guess for the fellow Gorillas

[AZ TOM]

Originally Posted by MeefZah

My throttle tube is like 1/2" to 1" shorter than the grip. The previous owner chopped it short to mount cheap barkbusters. When I replaced the bars and the barkbusters with better stuff I found it. Surprisingly, the shorter plastic under the grip doesn't cause any sort of control issues,comfort issues, nor is it visible (the grip diameter is the same and doesn't taper down where there is no throttle tube under). I would (and have) just mount up a new grip over top of the shorter throttle tube and let the end of the grip hang off the short end of the throttle tube.

Wise man. As long as the grip doesn't contact your hand guards it should all work smoothly.

[ba_]

Originally Posted by KansasBob

^^^^^^^^^^^^^^^^^^^^^^ 9 bucks shipped

http://www.ebay.com/itm/Motion-Pro-Y...1d3e67&vxp=mtr

Ooh fancy :) Thanks!

[livetofly]

Originally Posted by JaiDee

My Q4 is getting louder than I like and I need some advice.

I've read a number of threads on the different R2 sites and couldn't come up with an answer that everyone seems to agree with. The question seems like it should be easy enough to answer, but..... what is the part number for the CORRECT FMF Q4 muffler repacking material?

The venerable and always correct HighFive says one thing (FMF 4-stroke performance packing #0113940), while mwakey and others seem to say something else. What does the conventional wisdom say today?

Sorry if this is a redundant question, but I searched and couldn't find a recent definitive answer in either this thread or others.

Many thanks for any advice you can give!

-JD

I have the same question as before, does anyone know which is the correct part # for the FMF repacking kit for the Q4? I emailed FMF to ask them but they said I need the part number on the muffler. When I looked at mine I couldn't find a part number on it. If no one knows then I'll just try the Moose Racing kit that seems to fit, but it's ~ $30 and I would prefer the correct FMF packing. Also, is it supposed to be the 'sheet' type packing or will the stuff that is just sold in a bag work?

[DougZ73]

Originally Posted by MeefZah

My throttle tube is like 1/2" to 1" shorter than the grip. The previous owner chopped it short to mount cheap barkbusters. When I replaced the bars and the barkbusters with better stuff I found it. Surprisingly, the shorter plastic under the grip doesn't cause any sort of control issues,comfort issues, nor is it visible (the grip diameter is the same and doesn't taper down where there is no throttle tube under). I would (and have) just mount up a new grip over top of the shorter throttle tube and let the end of the grip hang off the short end of the throttle tube.

I would not advise having the throttle tube shorter than the grip...it could lead to a sticking throttle..which is obviously a dangerous situation. ..I had a sticking issue I posted about a while ago ....and that was exactly what it turned out to be. That sticking put me into at lead one tree.

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[MeefZah]

Originally Posted by DougZ73

I would not advise having the throttle tube shorter than the grip...it could lead to a sticking throttle..which is obviously a dangerous situation. ..I had a sticking issue I posted about a while ago ....and that was exactly what it turned out yo be. That sticking put me into at leadt one tree.

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I can see how this might be a concern, but I've never had an issue. The spring that returns the throttle to the default position should be wayyyy stronger than whatever minor friction might develop between the bar and the bit of grip in contact with the bar.

I think if you were having sticky throttle issues it was more than just that.

[cjbiker]

Originally Posted by KansasBob

^^^^^^^^^^^^^^^^^^^^^^ 9 bucks shipped

http://www.ebay.com/itm/Motion-Pro-Y...1d3e67&vxp=mtr

Originally Posted by ba_

Ooh fancy :) Thanks!

+1 on the Motion Pro throttle tube. I just put one on my XR250R. Fits perfect and the pop-out end cap means no drilling or cutting. The PO must have let his dog chew the end of the throttle tube and grip off so he could install some crappy plastic handguards. The throttle was about an inch shorter than stock and seriously mangled.

Just to keep it on topic, I used a Unibit to drill out the end of the throttle tube on my new-to-me WR250R. It took about 30 seconds (because I was taking my time and doing it carefully) and didn't shorten the tube at all.

[pfy50]

Originally Posted by livetofly

I have the same question as before, does anyone know which is the correct part # for the FMF repacking kit for the Q4? I emailed FMF to ask them but they said I need the part number on the muffler. When I looked at mine I couldn't find a part number on it. If no one knows then I'll just try the Moose Racing kit that seems to fit, but it's ~ $30 and I would prefer the correct FMF packing. Also, is it supposed to be the 'sheet' type packing or will the stuff that is just sold in a bag work?

Yes livetofly,
It has been addressed in HF's article on his website http://www.wrrdualsport.com/tech-guide/exhaust/112-repacking-fmf-q4
Read the last paragraph(under Update:) to see the correct FMF part number is 011393. Here is the link to FMF http://www.fmfracing.com/Products/MX/601 . Let us know how it works.

[DougZ73]

Originally Posted by MeefZah

I can see how this might be a concern, but I've never had an issue. The spring that returns the throttle to the default position should be wayyyy stronger than whatever minor friction might develop between the bar and the bit of grip in contact with the bar.

I think if you were having sticky throttle issues it was more than just that.

Well, being that once I cut off the end of the grip, that stuck past the throttle tube, the sticking issue was no longer there, I am pretty sure that is what it was.

The type riding I do, a sticking throttle is a big concern, so I would personally never recommend anyone to do anything, that might cause a potential sticking throttle...but that is just me.

[KansasBob]

Originally Posted by cjbiker

Just to keep it on topic, I used a Unibit to drill out the end of the throttle tube on my new-to-me WR250R. It took about 30 seconds (because I was taking my time and doing it carefully) and didn't shorten the tube at all.

+1 on the uni-bit. Harbor Freight is your friend there

http://www.harborfreight.com/2-piece...lls-96275.html

[Crawdaddy]

Looks like I'll be parting out my WR......GPR, IMS tank, Warp 9 wheel set, FMF programmer, Speedo Healer, Seat Concepts seat, etc.....plus all the stock "stuff".....more details in following weeks....enjoyed the WR but time to move on......I'm probably picking up another Orange bike.....I can plate a 2013 450 XCW in AZ.......shitload of $ but you only live once.....

[what broke now]

Originally Posted by DougZ73

Well, being that once I cut off the end of the grip, that stuck past the throttle tube, the sticking issue was no longer there, I am pretty sure that is what it was.

The type riding I do, a sticking throttle is a big concern, so I would personally never recommend anyone to do anything, that might cause a potential sticking throttle...but that is just me.

My throttle was sticking off and on, and today I rolled back the end of the grip and discovered that the tube end was broken 90% off and was acting like a brake. Once the piece was removed it worked fine. The damage was not visible prior to rolling the tube back.