I have a 2023 YZ450F that I've put 4 hours on since I purchased it new in 2023. I drained the fuel when I had my son and just never got time to go ride. I decided I'm going to get rid of it and buy a new bike in a year or two when some time becomes available. However after I went to put fuel in it. It wouldn't start. I pulled the tank and instantly noticed it is seeping fuel out of the injection line nozzle on the bottom of the tank which I know isn't supposed to be the case aside from a bit of residual. I hooked up a fuel pressure gauge to it and its not even reading. So I checked the fuel pump and its turning on and I ran it reverse polarity. It appears to be working. I went ahead and ordered a replacement one just to make sure its replaced. The next stop is obviously the fuel pressure regulator which I think is the culprit. After scouring the internet for a replacement regulator I cant seem to find any company that offers a regulator for a 2023+ YZ450F. I see quantum offers one for a 2010-2022. I know the part number for the 2022 and 2023 pump is different. Is there anyone here who has had to rebuild a pump on a 2023+ YZ450F and found a fuel pressure regulator that is a direct replacement? Thanks in advance.
2023 YZ450F Fuel Pressure Regulator Failure
Posts
7
Joined
7/9/2010
Location
Houston, TX, USA
I just found this on AliExpress: | Fuel Pressure Regulator For Yamaha WR250F XT250 YZ250 YZ250F YZ250FX YZ450F YZ450FX 33D1390700 00/33D1390701/33D1390702/33D13907
https://a.aliexpress.com/_mrEhXBd covers 2010-23 yz450f I got one but for a kx250f worked a treat
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