WR250F carb issues
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JTM525
curl666
6 posters
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WR250F carb issues
Evening all,
I have recently purchased a 2004 WR250F, the bike has been unused the past 4 years, only started now and again.
When I collected the bike, with the fuel tap on, the bike would leak fuel through the bottom drain pipe on the carb.
I assumed the float was stuck, due to the lack of use. Over the weekend, I removed the carb, gave it a good cleaning and checked the operation of the float.
Everything looked ok to me, but I'm not an expert on the carb. Float moved freely, no signs of gunk inside etc.
I have just refitted the carb, but it still leaks. I checked the allen key drain bolt on the side of carb this works.
Any help? Does anything else other than the float cause the fuel to leak?
James
I have recently purchased a 2004 WR250F, the bike has been unused the past 4 years, only started now and again.
When I collected the bike, with the fuel tap on, the bike would leak fuel through the bottom drain pipe on the carb.
I assumed the float was stuck, due to the lack of use. Over the weekend, I removed the carb, gave it a good cleaning and checked the operation of the float.
Everything looked ok to me, but I'm not an expert on the carb. Float moved freely, no signs of gunk inside etc.
I have just refitted the carb, but it still leaks. I checked the allen key drain bolt on the side of carb this works.
Any help? Does anything else other than the float cause the fuel to leak?
James
curl666- Posts : 544
Join date : 2012-12-01
Re: WR250F carb issues
Its the valve, if there's the slightest bit of crap in there it'll leak, i had the same on a ttr125 and replaced the needle and the seat and it worked perfectly! All for the princely sum of about £10!
JTM525- Posts : 2817
Join date : 2014-01-19
Age : 42
Re: WR250F carb issues
Thanks for the reply.
[You must be registered and logged in to see this image.]
Which parts are you referring too, what number are they on the photo above?
Many thanks
James
[You must be registered and logged in to see this image.]
Which parts are you referring too, what number are they on the photo above?
Many thanks
James
curl666- Posts : 544
Join date : 2012-12-01
Re: WR250F carb issues
It's 25 and 28, check the actual float too to make sure it's not got a hole in it and letting petrol in
JTM525- Posts : 2817
Join date : 2014-01-19
Age : 42
Re: WR250F carb issues
No problem mate ! I went through the same thing with that ttr so I know how much of a pain in the arse it can be
JTM525- Posts : 2817
Join date : 2014-01-19
Age : 42
Re: WR250F carb issues
another one that might need looking at is the float height settings
geraint- Posts : 1348
Join date : 2010-08-31
Age : 57
Location : Pentonville
Re: WR250F carb issues
The needle valve is the second one down from 25 but could be the seat too just above it.
Tho! like Geraint said it may need setting, on 27 in the middle where the needle valve sits may need a little bend up to make sure the valve is closing.
Be careful not to bend it to much or you will keep running out of fuel when flat out.
Tho! like Geraint said it may need setting, on 27 in the middle where the needle valve sits may need a little bend up to make sure the valve is closing.
Be careful not to bend it to much or you will keep running out of fuel when flat out.
wolfy- Posts : 6822
Join date : 2010-11-30
Age : 54
Location : Care Home, but sometimes they let me out
Re: WR250F carb issues
Think I'll check my heights first and clean it out again.
The photo above is from an earlier model, my carb just has a single valve in its place £37.99 from Yamaha!
The photo above is from an earlier model, my carb just has a single valve in its place £37.99 from Yamaha!
curl666- Posts : 544
Join date : 2012-12-01
Re: WR250F carb issues
loosen the drain plug off at the bottom of the float bowl, pull the fuel pipe off the fuel tap & stick an airline down it, it will blow all the shit out of the valve which should re-seat itself after, a very handy tip shown to me by Dene (2 wheel engineering)
Taffy300- Posts : 2710
Join date : 2013-12-20
Age : 52
Location : Noddy Land
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