Search found 375 matches

by Ibsen
Wed Dec 05, 2007 2:06 pm
Forum: Technical Discussion
Topic: recognise this spring?
Replies: 15
Views: 5731

Jumping from 1500 to 3500 as it warms up just after a start up seems pretty normal. You can adjust the fast idle cam and that way lower the rpm when you are using the choke, but if you lower it too much the engine will choke itself and stall just after it has been started with full choke, especially...
by Ibsen
Wed Dec 05, 2007 11:00 am
Forum: Technical Discussion
Topic: recognise this spring?
Replies: 15
Views: 5731

As I said; I think, since I wasn't quite sure. :wink:
And I really didn't want to dismantle mine to find out.

old gringo, did you send them to Mico, TX?
by Ibsen
Wed Dec 05, 2007 6:49 am
Forum: Technical Discussion
Topic: recognise this spring?
Replies: 15
Views: 5731

I think the spring is connected to the fast idle cam for the choke mechanism:

http://cosky0.tripod.com/imagelib/siteb ... et=tlx_new
by Ibsen
Thu Nov 29, 2007 10:21 am
Forum: Technical Discussion
Topic: Ingition advancer
Replies: 5
Views: 2912

Thanks Volker. 8) And no, I haven't taken the old one off yet. It's too cold for wrenching right now. And I have searched trough the parts lists and this is what I found: Timing advancer parts # for the 1979-1980 650Z US and European model: 30220-426-174 (replaces 30220-426-164) " " "...
by Ibsen
Wed Nov 28, 2007 11:13 am
Forum: Technical Discussion
Topic: Ingition advancer
Replies: 5
Views: 2912

I must admit, the model number didn't occur to me as an explanation. I have seen the model type stamped on Kawasaki advancers though. Like KZ750 and KZ400 for their 70's twins. And the reason for this is that the advance curve are very different for these two models. So if Honda stamped the timing a...
by Ibsen
Tue Nov 27, 2007 3:56 pm
Forum: Technical Discussion
Topic: Ingition advancer
Replies: 5
Views: 2912

Ingition advancer

The ignition advancer on my 650 have been neglected by the previous owner(s), I suspect it must have been rusty, and it is rattling at idle due to wear. Also the springs for the counterweights are too weak, causing the ignition to advance a little too early. I have bought a replacement advancer, it ...
by Ibsen
Sun Nov 25, 2007 3:36 am
Forum: Technical Discussion
Topic: Changing carb setup
Replies: 14
Views: 5065

I have also seen pictures of a simular 2 carb set up on a CB750 where they have used 2 Weber carbs.
by Ibsen
Sun Nov 25, 2007 3:34 am
Forum: Technical Discussion
Topic: replacement carbs
Replies: 8
Views: 4393

The CV carbs will not fit the cylinder head for the mechanical carbs. The spacing between the carbs are different, so you will need the cylinder head as well.
by Ibsen
Sun Nov 25, 2007 3:32 am
Forum: General Discussion
Topic: Classic Motorcycle Mechanics
Replies: 2
Views: 2278

Classic Motorcycle Mechanics

For those of you who are a subscriber , or just buy a copy now and then, of Classic Motorcycle Mechanics you can look forward to an article about the CB650 in the copy that will be on sale from December 19:

http://www.classicmechanics.com/next.htm
by Ibsen
Wed Nov 14, 2007 10:52 am
Forum: General Discussion
Topic: New to group
Replies: 3
Views: 2366

Welcome to the forum. 8)
by Ibsen
Mon Nov 05, 2007 6:55 am
Forum: Technical Discussion
Topic: Connecting rod length and crankshaft diameters?
Replies: 6
Views: 3877

The first thing that came to my mind is the 500/550 rods. What's different on the CB500/550 engine, the length of the rods or the crankshaft itself? And what about the rod journal diameter?
by Ibsen
Mon Nov 05, 2007 6:51 am
Forum: Technical Discussion
Topic: Questions about my 1980 CB 650
Replies: 7
Views: 3603

I agree with Volker. And synchronizing the carbs should be the final part of the tuning. The air filter, float levels, cam chain. valves, spark plugs and ignition has to be adjusted and in good working order before you do the synch. What you can expect from a carb synch is that the engine will be ru...
by Ibsen
Mon Nov 05, 2007 6:43 am
Forum: Show it off
Topic: SkiLLz CB650
Replies: 3
Views: 3875

I think Volker gave you some very reasonable and well founded advises.

Keep up the good work and your enthusiasm. 8)
by Ibsen
Thu Oct 25, 2007 12:32 am
Forum: Technical Discussion
Topic: 1979 Service manual
Replies: 8
Views: 3344

Pinhead, this is the Honda workshop manual for the 1979 US model.


Jason, you have done a great job scanning that manual. 8) However I noticed that Ch2 and Ch7 are permanently damaged files and won't open.

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