South Wales Trail Riders

    carb cleaning

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    Clarky_two

    Posts : 1245
    Join date : 2014-09-14
    Age : 46

    carb cleaning

    Post by Clarky_two on Wed Sep 09, 2015 8:39 pm

    Anyone got a good guide for cleaning a carb out, 400 exc 2006.

    Never done it myself, although I have taken it apart, just didnt know EXACTLY what to do. I would like an idiots guide step by step. Ive looked on youtube but didnt think its was much help there.

    The problem I got is - if I want to just lift the front to pop over things using the throttle, there is a slight delay then it comes up, rather than poping up on demand. its not every time just when I give it a bit of beans to get over a little steep sided stream or something like that. I end up moving my body in anticipation of the front coming up, but as it delayed I often end up smacking my chin on the bars.

    Any ideas? I though maybe the carb needed cleaning?? scratch
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    Taffy300

    Posts : 2707
    Join date : 2013-12-20
    Age : 46
    Location : Noddy Land

    Re: carb cleaning

    Post by Taffy300 on Wed Sep 09, 2015 8:51 pm

    New pilot & main jet I'd go with 1st. Even tho they may look clean the slightest bit of unseen Shit can make hell of a difference. Stretched throttle cable. If your gonna clean the carb do it properly by getting it sonic cleaned. Ring Dene of 2 wheel engineering. Bridgend. Tell him the symptoms & he'll give you the solution. 01656 653896


    Last edited by Taffyboy07 on Wed Sep 09, 2015 8:52 pm; edited 1 time in total
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    kirky

    Posts : 1610
    Join date : 2011-04-08
    Age : 50
    Location : West Wales

    Re: carb cleaning

    Post by kirky on Wed Sep 09, 2015 8:52 pm

    Brand new bike time mate
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    Clarky_two

    Posts : 1245
    Join date : 2014-09-14
    Age : 46

    Re: carb cleaning

    Post by Clarky_two on Wed Sep 09, 2015 9:06 pm

    Kirky I have nearly replaced everything on it now ( it was fucked when I bought it I reckon) lol - but seeing Mels new Six Days 500 did make me think.....
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    Taffy300

    Posts : 2707
    Join date : 2013-12-20
    Age : 46
    Location : Noddy Land

    Re: carb cleaning

    Post by Taffy300 on Wed Sep 09, 2015 9:20 pm

    What about when you see my 2016 new 6 days next week. Lol

    curl666

    Posts : 544
    Join date : 2012-12-01

    Re: carb cleaning

    Post by curl666 on Wed Sep 09, 2015 9:38 pm

    400 exc are a lovely bike to ride! Wish I never sold my 2005 Sad

    I had a 450 exc carb apart today and cleaned it out. I'm thinking of investing in a small ultrasonic tank.

    With the carb removed I always block both ends and start by cleaning the carb externally. To remove any loose dirt that may end up inside when you have the covers off.

    With bottom cover off, push the pin out that holds the floats in place. Lift up the floats and the fuel valve should come with it. 6mm socket and 8mm socket to remove the jets. The white plastic shroud in the centre now lifts off. Flat blade driver for the next two, either side.

    On the bottom cover, there is a small diaphragm behind the 3 Allen bolts. Pop the diaphragm out and clean it. Careful not to pierce it and watch for the two o rings. Clean it and reassemble.

    From the top, remove the screw on the slider arm. Lift up the throttle slider and set it on bench. It's at this point I usually blast the shite out of the carb with both covers off. Top is usually full of a grey film.

    After cleaning all the jets and parts on the bench with air gun and carb cleaner I reassemble. Usually if you hold the jets upto the light, you should be able to see a perfect circle of light through them.
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    kirky

    Posts : 1610
    Join date : 2011-04-08
    Age : 50
    Location : West Wales

    Re: carb cleaning

    Post by kirky on Wed Sep 09, 2015 9:41 pm

    Brake cleaner good for cleaning
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    steve

    Posts : 4245
    Join date : 2010-01-26

    Re: carb cleaning

    Post by steve on Wed Sep 09, 2015 9:49 pm

    Dude said his bike was more responsive since he dumped the recluse.
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    wolfy

    Posts : 6811
    Join date : 2010-11-30
    Age : 49
    Location : Care Home, but sometimes they let me out

    Re: carb cleaning

    Post by wolfy on Wed Sep 09, 2015 9:54 pm

    Semiautomatics always have a delay, quick flick of the clutch may help ?

    curl666

    Posts : 544
    Join date : 2012-12-01

    Re: carb cleaning

    Post by curl666 on Wed Sep 09, 2015 10:01 pm

    kirky wrote:Brake cleaner good for cleaning

    Buy it from a car motor factors too. Don't go to a bike shop.

    £4 in my local motor factors or £8.99 upwards at a bike shop Sad

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