hey found this on my computer and thought someone might be able to use it.
How to clean your carbs , even though it's pretty easy to do some people think it's a fairly daunting task, so I decided I'd snap a bunch of pictures while I did mine and make a quick write-up. Having said that, don't try this if you're stupid or mechanically challenged, you can break expensive things and cause a lot more damage then good. However, if you know the difference between a screwdriver and a socket wrench you probably have enough mechanical know-how to do this.
The only tools needed (except for the tools to get to your carbs) are a phillips screwdriver, 4mm and 3mm allen wrenches, and some spray on carburetor cleaner.
Start by removing your carbs. You can do this with the carbs in, but it's a lot easier and safer with them out. Basically: Remove gas tank, remove air-box, unplug fuel lines and vacuum lines, remove throttle cable, remove carbs. (If this is your first time doing this expect this to take at least 2 hours, those band clamps are a pain the first time around)
Now you have your carbs removed:
http://i207.photobucket.com/albums/b...arbsoutmr2.jpg
In case you're wondering this little screw here is what you're looking for to do carb synchs (there's 3 of them 1&2, 3&4, and the 1,2&3,4 balancer):
http://i207.photobucket.com/albums/b...stscrewrh0.jpg
First step is remove your float bowls.
Remove these little bolts (4mm allen) there's 3 per bowl:
http://i207.photobucket.com/albums/b...wlboltsgq0.jpg
Keep everything ordered (cylinder 1,2,3,4). Once you have the bowl off, clean it out with carb cleaner. It should look like this clean:
http://i207.photobucket.com/albums/b...eanbowlvd4.jpg
Next, very carefully slide out the retaining pin on the float, I used to pocket knife to get it started then grab it with your fingers (not pliers) and pull it out:
http://i207.photobucket.com/albums/b...bowlpinbs5.jpg
Once the pin is out the float should be resting on the float valve, very carefully lift out the float and floatvalve:
http://i207.photobucket.com/albums/b...ndvalveiv9.jpg
Clean off the float, the valve, and the interior of the bowl until they sparkle like new.
Reassemble the float chamber the way you took it apart, put the float valve into the carburetor and drop the float onto the neck of it.
http://i207.photobucket.com/albums/b...ssemblywk1.jpg
Gently lift the float up to align the pin and slide it in:
http://i207.photobucket.com/albums/b...loatpinmf1.jpg
Put the bowl back on and tighten the allen bolts down (make sure the gasket is on there).
Alright, on to the opposite side of the carburetor to the vacuum chamber!
Slowly remove the 3 allen heads holding it on (3mm) (sorry no picture). Do it slowly because it is spring loaded.
When you take off the cover grab the spring before it shoots off. Once again set things aside by cylinder.
GENTLY grab the hard plastic of the diaphragm and slowly and carefully slide it out:
http://i207.photobucket.com/albums/b...phragm1in5.jpg
The needle in there is delicate, do not grab it by the needle, set it down on the needle, bend the needle... etc.
http://i207.photobucket.com/albums/b...phragm2fh0.jpg
Clean out the inside of the vacuum chamber with carb cleaner, clean off the needle, and diaphragm, as well as the vacuum chamber cover
http://i207.photobucket.com/albums/b...chamberrb3.jpg
Reassemble things in the reverse order. Very Very Very Very carefully slide the diaphragm/needle back in, if it binds on something the needle isn't aligned, do not force it, pull it out and try again.
Next load the spring onto the holder in the diaphragm, put the vacuum chamber cover on the other end and compress the spring down making sure it doesn't get bent or fold (no picture because this part takes 2 hands to do, sorry). While holding the cover down with one hand put the allen bolts back in, tighten everything up and flip the carburetor over to get at the top of it.
Next the air funnel:
Undo the 4 screws holding down the air funnel holder:
http://i207.photobucket.com/albums/b...rfunnelnl7.jpg
Slide out the airfunnel and it's holder (Be careful of the gasket, it can get stuck and rip)
Clean everything out (Note: I forgot to remove the gasket for this picture, remove it before you spray clean):
http://i207.photobucket.com/albums/b...rfunnelyj4.jpg
Button the air funnel assembly back up, gasket goes on first, slide on air funnel and holder (make sure the tabs on the air funnel are on the tabs on the gasket), tighten down the 4 screws, and you're done!
Total time (Including taking pictures and not including removing the carbs from the engine): 60 minutes.
If you've never removed your carbs before then expect this entire ordeal to take you upwards of 6 hours or so, including trips to the local tool store to get a 20" thin phillips screwdriver, and trips to the liquor store for refreshments (In other words plan for a day long event and do it on a day when tool stores are open).
If you're very familiar with your engine you can get this done in under 3 hours.
Enjoy your fresh like-new carbs
how to clean your carbs.
Linear Mode
