What to do if your Yamaha WR450F throttle stop stops working?
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How big is the throttle stop screw on a WR400?
The WR400 and WR426 (US) models have similar throttle stop screws, but they also have different carbs than the 250 models. This article says that the stock 400/426 throttle stop screw is 30mm, which should be cut down to 23mm (i.e. remove 7mm).
Are there any free mods for Yamaha WR450F?
Let your Yamaha WR450f and WR250F use full potential by performing this throttle removal mod. You are going to get more throttle movement and will be able to rev much higher than before. This is on of the free mods that will uncork your dirt bike Yamaha wr450 and WR250. https://www.dirtniron.com/product-pag… Loading…
Where is the throttle stop screw on a carb?
You find the throttle stop screw here, on the right side of the carb, behind the big black plastic cover. To remove the cover (which probably isn’t strictly necessary but makes seeing what you’re doing easier), remove the 4mm allen bolt under the rubber boot.
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Where is the throttle on a YZF WR250F?
The throttle is a screw on the bottom of the throttle disk, as shown in the picture. To modify it to the length of the YZF throttle stop, take it out and cut it with a saw. The original size is in between 30 and 35mm, so cut it to about 25mm. Put the throttle stop back in and that’s it.
Let your Yamaha WR450f and WR250F use full potential by performing this throttle removal mod. You are going to get more throttle movement and will be able to rev much higher than before. This is on of the free mods that will uncork your dirt bike Yamaha wr450 and WR250. https://www.dirtniron.com/product-pag… Loading…
Where is the exhaust pipe on a 2007 WR450F?
On the 2007+, it’s under the left side panel in the 6-pin connector. The best way to do it is to push the wire out of the connector using a small slotted screwdriver and then tape off the ends. The stock exhaust pipe is incredibly quiet, and actually not that restrictive with basic mods.