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› Carb cleaning with carb still in frame?
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Carb cleaning with carb still in frame? (Read 111 times)
Bluesman
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Carb cleaning with carb still in frame?
12/03/13 at 05:22:55
Can the carb be cleaned in situ - by taking off the top (and the top parts), loosening the car clamps, the gas wire and rotating it in the frame 180 degrees to get access to the float chamber?
We will be in a pinch time-wise and need to do a quick cleanup of jets and chamber. Tank and saddle already taken off..
Can it be done?
Cheers /Richard
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Dave
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Re: Carb cleaning with carb still in frame?
Reply #1 -
12/03/13 at 06:51:41
If you have never had the carb apart before......getting the float bowl screws out might be awfully difficult with the carb turned sideways in the frame. They can be stuck in pretty tight.
If you get the carb out the first time, and replace the float bowl phillips screws with allen head screws.....it gets much easier to clean or do jet changes with the carb still in the bike from then on.
A good thorough carb cleaning needs the carb out, taken apart, and dropped in an ultrasonic cleaner....then everything blown out with compressed air and dried thoroughly.
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verslagen1
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Re: Carb cleaning with carb still in frame?
Reply #2 -
12/03/13 at 07:33:44
won't be as thorough a job but might be enough, most likely won't.
and in the long run will probably take longer.
if it were a known quantity, already been cleaned or just needs the slide cleaned, probably work for you.
those screws are a bear to take off the 1st time, near permanent locktite.
pen oil the threads, grip the head with a vice grip and twist them off.
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Gyrobob
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Re: Carb cleaning with carb still in frame?
Reply #3 -
12/04/13 at 07:56:40
With the carb out, you'll be able to clean it faster and more thoroughly. After learning a few lessons the hard way, I now treat a carb cleaning as a sterile operation,... white towels, nice large clean area, clean tools, face mask, etc. I doubt you'd save any time at all by leaving it in the bike, and you'd run the risk of mucking things up.
Some of those fasteners are a booger-bear to get off the first time. Here's a technique sometimes used in aircraft parts where assemblies are often assembled with the idea of never ever coming loose.
See reply #62 in the Double RYCA Build thread.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1304722902/60
The technique is to shock the fastener laterally with a punch back and forth. Tap it on one side, then the other. After a while it will start to move very slightly with each tap. When you can see it move a fraction of an inch with each tap, it is probably loose enough to remove with a screwdriver.
It doesn't take much force. Be gentle. Also be very careful about putting the carb in a vise. Use soft jaws of some sort and very little clamping pressure,... or just have someone hold the carb while you tap it,... or bungee the carb to something while you tap it,.. etc.
jk about the face mask
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justin_o_guy2
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Re: Carb cleaning with carb still in frame?
Reply #4 -
12/04/13 at 08:18:07
I wouldnt even dream of trying to clean a carb unless it was in my hands.
Its hard enough when I can lean one this way & that under a lite, Now, swapping jets out? Ohh, sure, once youve been in & have all the bolts where theyll move w/o needing too much power on them, but if youve never been in that carb, Id recommend pulling it, & use antisieze on the exterior bolts goin back together,
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Bluesman
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Re: Carb cleaning with carb still in frame?
Reply #5 -
12/04/13 at 09:42:01
Ok, guys. Point taken. It will have to come out, then. Thanks.
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Cheers /Richard
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Bluesman
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Re: Carb cleaning with carb still in frame?
Reply #6 -
12/08/13 at 10:51:22
It did come out. After removing the battery/tool box. And after some serious wiggling of the rubber stuff (air línlet). We wouldn´t have had a chance to do some proper cleaning with the carb in the bike - there is simply no room for a) the impact driver to loosen the top screws without damage and b) rotating the carb the amount necessary to do the underneath work (float chamber). Lesson learned. Tnx!
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Cheers /Richard
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Bluesman
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Re: Carb cleaning with carb still in frame?
Reply #7 -
12/08/13 at 11:05:28
While we were at it, we raised the idle speed aduster 1/4 turn, we sanded 0.3mm off the nylon needle spacer and took just one turn off the spring for the "whatchamacallit valve/diaphragm" thing that regulates the return to idle. Might be a good overall compromise and not overdoing things to begin with. Next adventure is the mixture screw. At that point, we will have enough parameters to keep us busy, backfire-wise
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Cheers /Richard
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