Search found 5379 matches

by Volker_P
Tue Aug 14, 2018 2:21 am
Forum: Technical Discussion
Topic: Dont know where to begin
Replies: 2
Views: 2903

Re: Dont know where to begin

Welcome here! :D I would recommend to read around in the forum a bit to get an idea what you got there. Then read the repair manual as you would read a book to get a bit common with the things in your boxes. Then have a closer look into your boxes and try to recognize the parts you did see in the ma...
by Volker_P
Tue Aug 14, 2018 2:05 am
Forum: Technical Discussion
Topic: Can you swap a 96' CB750 motor in an 82' cb650sc
Replies: 4
Views: 3518

Re: Can you swap a 96' CB750 motor in an 82' cb650sc

Mechanic went back into bike to tighten engine block bolts to stop a leak. If you want to have a tight engine, you have to clean surfaces carefully before reinstall and follow the stepwise torque schemes with a small enough torque bolt. Try tightening bolts at a CB650 head cover or head to stop a l...
by Volker_P
Tue Jul 31, 2018 3:27 am
Forum: Technical Discussion
Topic: Starting issues an air box
Replies: 4
Views: 3239

Re: Starting issues an air box

Welcome here! :D It should start and run somehow on 3, even on 2 cylinders. Plug cables from left coil go to 1+4 from right coil to 2+3. :wink: Do you have fuel in your floater bowls? You may check by opening the release screws. If your carbs have the vacuum shutoff (a part with several hoses sittin...
by Volker_P
Tue Jul 31, 2018 3:19 am
Forum: Technical Discussion
Topic: New '82 Nighthawk 650 owner, having a few problems.
Replies: 5
Views: 3673

Re: New '82 Nighthawk 650 owner, having a few problems.

Welcome here! :D How do your plugs look like? All four equal? Still the plugs you got with the bike? When you replaced the old carb boots, did you also have a look inside the carbs? First thing for me to try for now would if throttle response gets better when the choke is pulled a bit. I would not t...
by Volker_P
Fri Jul 27, 2018 1:17 am
Forum: Technical Discussion
Topic: Hello from a new member. 1979 Cb650 with a couple of issues.
Replies: 9
Views: 4617

Re: Hello from a new member. 1979 Cb650 with a couple of issues.

Thanks for the helpful pictures. Your plugs look good. 3+4 seem to have fired a bit, too, but never got hot. I would expect 3+4 look wet and black if they had fuel but no ignition or compression. Therefore my guess is a fuel/carb issue here. Forget about the idle jets and passages for now, they shou...
by Volker_P
Thu Jul 26, 2018 3:09 am
Forum: Technical Discussion
Topic: Hello from a new member. 1979 Cb650 with a couple of issues.
Replies: 9
Views: 4617

Re: Hello from a new member. 1979 Cb650 with a couple of issues.

Welcome here! :D Interesting reunion story. To your problems: The plug cables from left coil go to cylinders 1+4, from right coil to 2+3. You would not be the first one who mixes them up :wink: Also try to swap plugs just to be sure. 1+2 are closest to the fuel inlet of the carbs, 3 is a bit further...
by Volker_P
Fri Jun 29, 2018 12:49 am
Forum: Technical Discussion
Topic: Starter clutch issues
Replies: 9
Views: 4639

Re: Starter clutch issues

Got the pan off and I can turn the starter clutch by hand but it feels really tight. Not good. It should spin free in one direction, only slowed down a bit by the sprockets. Which means there should be a bit of very free play before the starter transmission sprocket teeth really engage. If there is...
by Volker_P
Thu Jun 28, 2018 1:09 am
Forum: Technical Discussion
Topic: Starter clutch issues
Replies: 9
Views: 4639

Re: Starter clutch issues

Welcome here! :D In fact I never heard of that issue. Remove the starter and have a look into the hole in the crankcase. There should be teeth of a sprocket visible. Usually you can turn the sprocket with a screwdriver to one direction freely, but not to the opposite direction. The mechanical option...
by Volker_P
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: 2484

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...
by Volker_P
Wed Mar 07, 2018 2:43 am
Forum: Technical Discussion
Topic: Carb Cleaning -- success
Replies: 4
Views: 2572

Re: Carb Cleaning -- success

Thanks for this nice report. :D
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/ :lol:
by Volker_P
Wed Feb 28, 2018 2:56 am
Forum: General Discussion
Topic: Stator replacement issues
Replies: 4
Views: 3861

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 ...
by Volker_P
Wed Feb 28, 2018 2:02 am
Forum: Technical Discussion
Topic: question about fuel tank petcock and path to carburetors
Replies: 10
Views: 3925

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.
by Volker_P
Tue Feb 27, 2018 5:50 am
Forum: Technical Discussion
Topic: question about fuel tank petcock and path to carburetors
Replies: 10
Views: 3925

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...
by Volker_P
Fri Feb 23, 2018 2:20 am
Forum: Technical Discussion
Topic: why would pipes #1 & 3 be cool?
Replies: 72
Views: 20209

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...
by Volker_P
Wed Sep 07, 2016 12:35 am
Forum: General Discussion
Topic: PLUG B, OIL PATH CB650 1979 (Z)
Replies: 3
Views: 4628

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.

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