Throttle stop on 2011 WR450F

How do you remove the throttle stop on the 2011WR450F?

Also does it help the bike to remove the baffle out of the tailpipe?

Get a ball end allen head socket with an extension and find a way to weasel it in from the bottom and takr it out.. Get the GYTR AIS removal kit and it comes with the YZ throttle stop, put it in its place.. Or cut the WR one off to match the YZ's..

In stock form the bike rivals power with an XR 200..

Do a search, tons of info on the "Free Mods".

How do you remove the throttle stop on the 2011WR450F?

Also does it help the bike to remove the baffle out of the tailpipe?

If you have a "bondhus" type allen wrench you should be able to get at it without pulling the carb off. Find the diagram for the carb in your manual for a visual reference. You can get a replacement screw from your local hardware store or just cut the stock one down to 18.2mm in length. I was lucky and found one at ACE that was not only stainless but it was exactly 18.2mm long...

Yeah you dont have to pull the carb off to get it out, Hope I didnt mislead you there.. I was able to get mine off with a long extension and a ball end allen socket, the bolt points down at an angle towards the rear of the bike..

How do I take out the throttle stop on my Yamaha WR450F

How do I take out the throttle stop on my Yamaha WR450F

To best remove the throttle stop screw, use the search feature at the top of the page. :cry:

Seriously, been covered with pics even, a million times, but it all depends on year of your WR. What year is yours?

Mike

I was able to get thr stop out by using a long T handle allen wrench. It was a tight fit but I dropped the stop screw out and cut off 11 millimeters of it. Plenty of throttle now. I also removed the baffle from the stock muffler. This is ok to do isn't it? I mean, this wont harm the engine will it? Seems to have a lot more power now. Haven't done any jetting changes. Those are still stock. I just wanted more power. I'm an old timer doing a few hare scrambles now and then. Thanks if you have any suggestions.

Yes, you will get a little more power out of the engine by removing those restrictions out of the exhaust. And no, it won't hurt the engine any. You will gain even more power by opening up the intake and jetting the bike correctly.

Maniac

OVERHEATING. Have you ever had any overheating issues. I have boiled it a couple times in Hare Scrambke when stuck and not moving. I've been told that using "Engine Ice"Hugh performance coolant is the ticket. Would you recommend anything else like a cooling fan?

Hey guys, what if my bike doesn't even have a throttle stop screw? I bought it this way and now I am checking it and it's without. Does it do the engine harm and should I buy one immediately?

I'm also seeing conflicting reports of the actual length of the screw... I see in this thread suggested 18.2mm but on the FAQ site they list 24mm. Which is correct?

This is an easy question I know you WR Gurus have the answer to, won't someone clue me in?

The overall length is around 24mm. The length of the threaded portion of the screw is 18.2 from the base. I cut and filed mine down to that length and have full opening of the throttle.

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