Hello everyone. My name is Larry. I know I'm new here, but I'm not new to the CX/GL bikes.
I have been building these bikes and doing carb rebuilds for several years now. At the suggestion of Phantom I am here to let all of you know that I have written a book on how to rebuild the Keihin CV carbs that are used on the CX, GL, CB, and CM carbs used by Honda. As you know they can be a bit of a pain to get running right. The main issue they have is in the low to mid range RPMs. They have hesitations and flat spots as well as hard starting issues after years of neglect and sitting around with no use. What I have discovered is that the low jet that's pressed into the early style carbs, as well as the screw in style of the later model bikes, has been the culprit causing the issues we have been experiencing. The low jet has a very small hole in it (.018) and 8 holes for emulsifying the fuel. The .018 hole in the center of the jet has to be cleaned out manually with a drill bit to get it cleaned out properly after it is pulled out.
There is NO cleaner available including the Ultrasonic cleaner that will remove the deposits that build up in them. This alone makes a world of difference in how they run, but will not totally fix all the issues if the circuit chambers are not cleaned out as well. The book outlines a process to clean them manually, but strongly suggests using an Ultrasonic cleaner to do the job properly. Believe me when I tell you that these bikes can and will run like new when the carbs are cleaned and rebuilt properly. I have done a few hundred of them all with great success.
The book covers everything from inspection and tear down, cleaning, re-aligning the bodies properly and reassembly. I know most folks don't feel comfortable splitting the carbs when they clean them, but you'll have the confidence that they are done right when you follow the procedure outlined in my book. Aligning the bodies ensures that the throttle doesn't stick as well as keeps both throttle shaft in balance as you go up in RPMs. If they are out of alignment the 2 carbs will be out of sync as you open them up to WOT.
It also covers many commonly needed repairs for these carbs. Like getting out stuck or damaged main emulsion tubes, idle mixture needles, broken springs, replacing throttle shafts or plates and how to re-align them ... etc.
Phantom is interested in seeing how many of you would like to order a book using the group buy method. If you are interested in one, PM him directly and put yourself on the list. When the list is complete and we know how many copies are needed I will figure out what the shipping cost will be for all of them in one box and divide that into the total of what it would cost you each per book. The goal here is to lower the total cost of shipping to each one of you. Phantom will be getting the order and distribute them to each of you when he gets them.
There are two versions of the book. Color for $30.00 or B&W for $25.00. If you're not interested in the group buy the shipping cost directly to you is $6.25. That can be ordered and paid for by clicking this link and choosing your wanted version.
http://www.donlhamon.com/carbbook.html. Otherwise, PM Phantom and let him know to put you on the list for the group buy.
I thank you for reading through all of this. Below I'm going to attempt to add some links to a few picture of my bikes and what the carbs look like when I'm done doing a full rebuild and polishing to them. Wish me luck as I'm new to your methods here.
The cover of the book. I forgot to tell you there are 212 pictures that go along with step by step instructions in this book.
http://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=Coverspellfix.jpgA set of CX and CB750 carbs.
http://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=DSC_0131.jpgOne of the Cutaway views that's in the book showing the internal passages.
http://s325.photobucket.com/albums/k378/LRCXed/CARB%20STUFF/?action=view¤t=Carbcut.jpgThis is my latest GL650 I ride daily now. The bags aren't painted yet though. Can't seem to find the time. LOL
http://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=DSC_0096-1.jpghttp://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=DSC_0104.jpgThis is my first CX that started it all.
http://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=IMAG0011.jpgMy son's CX500 Custom.
http://s325.photobucket.com/albums/k378/LRCXed/?action=view¤t=DSC_0060.jpgA link to the beginning when I discovered how to get the low jets out and what size holes they were supposed to have. Sorry about the blurry pics.
http://globalcxglvtwins.hostingdelivered.com/viewtopic.php?f=19&t=32How to polish aluminum and other parts.
http://choppercharles.com/cs/forums/46509/ShowPost.aspxI think that's enough of my introduction links for now. I just wanted you to see that I'm not new to this.
If anybody has any questions feel free to ask.
Larry
Colour please.
and apt Paul 