I have a 1998 Magna C2. I am cleaning my carbs and one part has me stuck. I am presuming it is the Choke Circuit ( It's called a lot of different things ) in this photo attached? This whole pilot and choke screw thing has got my head spinning. The only comment I have found about it is one that says he had to drill it out. I have a photo I found on someone's post and maybe someone can help me out. My carbs are all cleaned and ready to go. I am taking everything apart and cleaning the parts and carbs and seeing if there is damage. Giving new life to the seals, that look very good. Everything looks Ok to go, except a little green gunk on the front 2 main jets, which I was able to remove and clean as if new. All the jets look new. But this one (or two parts) I can not remove without damaging them. This is the photo attached. How do I pull out this "choke screw" (he has called it that) to clean it? There is no place for a screw driver? How is it safely removed and replaced. I have cleaned and dipped all parts in Sea Foam. I also used compressed air to clean it all out, even the tubes between the carbs. Is it better to just leave this part alone?
http://www.magnaownersoftexas.com/forums/index.php?action=dlattach;topic=6108.0;attach=3783;image
I've never removed it in my several carb cleaning events.. Never needed to...
waiting to see if anyone else chimes in..
I haven't ever removed that either. I believe it's pressed in and I have not seen a replacement for that brass element. If it is part of the choke circuit, I'd be careful about what I spray into it because you'll find that the choke needles, the elements that are actually moved back and forth by the choke linkage, have rubber gaskets in the end of them. I've read that if that rubber gets messed up then your choke circuit won't completely seal off when the choke is closed the bike can act like you have a vacuum leak.
So if you want to spray anything into that circuit, I would remove the choke needles first.
Alright guys. I agree with you. I am getting air through it to the choke, so I guess it will be alright. Thanks for your comment!
Idle jet for fuel circuit. Pressed in at factory. Never attempt to remove this.
I strip a 20 gauge piece of stranded copper wire back a couple of inches and cut off one strand to use like a pipe cleaner. Spray the jet and the wire with carb cleaner and work the wire filament in and out twisting as you go. I rinse it with acetone and blow it out with compressed air.
You should also remove the slow air jet (screws in and has a spring and a micro o-ring on the end of it). run some acetone through it and blow it out as well. Make sure you screw it all the way in with a small straight blade first and count the revolutions and any fraction thereof to seat it. When you put it back in screw it all the way in to a gentle seat pressure and back it out the full and fraction of a revolution(s). All four of these should be set at the same number of turns on each carb body. Be careful when this screw is removed as it is delicate. You bend it, you messed up big time as it meters air during the idle circuit operation. The o-ring has to be in it so don't lose it. If the o-ring doesn't come out with the needle/spring, bend the end of small piece of wire filament into a j hook and fish it out. You must get it out before you put any type of cleaner down the hole or the ring will swell up.
You mentioned the "spring and a micro o-ring".. Yes.. Be very careful.. I've lost the spring before when I forgot and sprayed in to hole and washed the spring in the air, and God knows where!
Nicknamed the "Jesus" spring because when it goes flying you yell, "Jesus, where did that spring go!".
The washers and o-rings on the mixture screw area easy to source. But I don't have a source yet on the springs. ;-)