Search found 5311 matches
- Wed Mar 07, 2018 4:55 am
- Forum: Technical Discussion
- Topic: how to connect my battery charger alligator clips to battery without removing seat?
- Replies: 4
- Views: 316
Re: how to connect my battery charger alligator clips to battery without removing seat?
I remember I just had an additional cable lag mounted at the battery side of my starter solenoid. It was "somehow" :roll: accessible with alligator clips after removal of the side cover. This cable lag was strong enough to start the engine there, too, because in my case this was the reason...
- Wed Mar 07, 2018 2:43 am
- Forum: Technical Discussion
- Topic: Carb Cleaning -- success
- Replies: 4
- Views: 353
Re: Carb Cleaning -- success
Thanks for this nice report.
Well, and this:
should not be a problem any longer: https://simplegreen.com/products/all-pu ... -lavender/

Well, and this:
michael_650 wrote: Open the windows, turn on the fans. This will stink. Not rancid, terrible, but my lovely bride was not happy...
should not be a problem any longer: https://simplegreen.com/products/all-pu ... -lavender/

- Wed Feb 28, 2018 2:56 am
- Forum: General Discussion
- Topic: Stator replacement issues
- Replies: 4
- Views: 279
Re: Stator replacement issues
Right. The stator itself only needs the three yellow wires for operation. Black and white are to connect the regulator to the rotor brushes. These five cables share the same plug to the regulator, so probably that's why b&w they are there, too. I guess from this and the pictures you could still ...
- Wed Feb 28, 2018 2:02 am
- Forum: Technical Discussion
- Topic: question about fuel tank petcock and path to carburetors
- Replies: 10
- Views: 510
Re: question about fuel tank petcock and path to carburetors
juntjoo wrote:Any ideas before I take it apart again?
Pull the hose from the petcock, put on another hose there, then release some fuel into a jar. This way you get an idea how much fuel could go into your carbs.
- Tue Feb 27, 2018 5:50 am
- Forum: Technical Discussion
- Topic: question about fuel tank petcock and path to carburetors
- Replies: 10
- Views: 510
Re: question about fuel tank petcock and path to carburetors
Have a look at the right side of this picture (and better ignore everything on the left :lol: ) The free hose end directly plugged to the (here missing) petcock. This hose even made an upwards loop so the car fuel filter fitted in here. Worked fine and so should yours. The function of the "evil...
- Fri Feb 23, 2018 2:20 am
- Forum: Technical Discussion
- Topic: why would pipes #1 & 3 be cool?
- Replies: 72
- Views: 2608
Re: why would pipes #1 & 3 be cool?
Thank you guys for finding really nice words for me, sounds a bit like an obituary. Fortunately too early but thanks anyway. :D So I just like to say that I am all right and there is no reason to worry. I am completely off the motorcycle stuff since that crash and I do not look in here frequently an...
- Wed Sep 07, 2016 12:35 am
- Forum: General Discussion
- Topic: PLUG B, OIL PATH CB650 1979 (Z)
- Replies: 3
- Views: 2252
Re: PLUG B, OIL PATH CB650 1979 (Z)
Heat usually is a good idea but be careful there. Especially if there should be traces of "ground contact" at the bottom.
Possibly worth to consider if you really need to have it out.
Possibly worth to consider if you really need to have it out.
- Tue Sep 06, 2016 1:24 am
- Forum: Technical Discussion
- Topic: Solution to Not running on 1 or 4 Cylinder + ticking sound
- Replies: 1
- Views: 1239
Re: Solution to Not running on 1 or 4 Cylinder + ticking sound
Yes, tricky issue.
Because everything looks fine as soon as you remove the cover to check out.
Good you found it before you tore everything apart.
Because everything looks fine as soon as you remove the cover to check out.
Good you found it before you tore everything apart.

- Fri Sep 02, 2016 1:03 am
- Forum: Technical Discussion
- Topic: 80s cb650 c tuning and potential rejeting?
- Replies: 1
- Views: 1310
Re: 80s cb650 c tuning and potential rejeting?
It runs and idles very quietly though it takes maybe 30 seconds and a rev or two for cylinder 1 to start firing and heat up noted by a slight backfire pop on cylinder one as the throttle is letting off. It also smokes less now. 30s until it runs at all four is all right. Do not worry. The only prob...
- Fri Sep 02, 2016 12:44 am
- Forum: Technical Discussion
- Topic: 1979 CB650 tail light
- Replies: 6
- Views: 2539
Re: 1979 CB650 tail light
Here is a question I have: If the brown wire associated with the tail light when the bike is running has power coming out of the ignition switch but a break at some later point, could I just splice that wire with the other brown wire? From my understanding of the the US model tail light circuit the...
- Thu Sep 01, 2016 1:01 am
- Forum: Technical Discussion
- Topic: 1979 CB650 tail light
- Replies: 6
- Views: 2539
Re: 1979 CB650 tail light
The brown cables are the power supply for the tail light. And e.g. for German bikes there is also a small 3Watts bulb in the headlight for the front parking light. This might explain no second cable comes out from your harness (US model assumed). Here are some hints how to get into the ignition swit...
- Fri Aug 26, 2016 12:39 am
- Forum: Technical Discussion
- Topic: Throttle butterflies dont retract?
- Replies: 36
- Views: 3371
Re: Throttle butterflies dont retract?
You are right, I mixed that up.
It has been three years now that my CB is gone and obviously I start to forget some things with time.
Or in other words: I'm getting old!
It has been three years now that my CB is gone and obviously I start to forget some things with time.
Or in other words: I'm getting old!

- Thu Aug 25, 2016 1:54 am
- Forum: General Discussion
- Topic: PLUG B, OIL PATH CB650 1979 (Z)
- Replies: 3
- Views: 2252
Re: PLUG B, OIL PATH CB650 1979 (Z)
I think you should get it out with a 12mm Allen key. You may make a tiny steel plate to shim a possible gap so you get it out safe without damage. It should come out easily, it is just a plug with an O-ring. At least I don't remember trouble there. I won't be surprised if it already would come out w...
- Thu Aug 25, 2016 1:47 am
- Forum: General Discussion
- Topic: Cylinder Head Temps
- Replies: 8
- Views: 3341
Re: Cylinder Head Temps
Despite the millions of online horror stories, I think my next move will be to switch to amsoil 10w-40 synthetic metric motorcycle oil. If you know your engine is clean inside (e.g. after you did a complete rebuild) no real problem. But synthetic oil may dissolve all the stuff from decades more or ...
- Thu Aug 25, 2016 1:23 am
- Forum: Bikes
- Topic: CB650 Custom
- Replies: 3
- Views: 2376
Re: CB650 Custom
Quite good shape for a daily use bike in the UK!
Interestingly this seems to be a US model. The European 1980 Custom had double disk front from the beginning on.
Stock rear sprocket.
Interesting exhaust, don't remember I ever saw this one.
Interestingly this seems to be a US model. The European 1980 Custom had double disk front from the beginning on.
Stock rear sprocket.

Interesting exhaust, don't remember I ever saw this one.