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by cb650
Fri May 19, 2017 5:44 pm
Forum: Show it off
Topic: New to Forum, New to Two Wheels
Replies: 1
Views: 1555

Re: New to Forum, New to Two Wheels

Looks good. 2nd DOHC4 member this week.
by cb650
Thu May 18, 2017 5:15 am
Forum: Show it off
Topic: First bike, '83 CB650SC Nighthawk
Replies: 3
Views: 2008

Re: First bike, '83 CB650SC Nighthawk

welcome. This site is for the older sohc4 650's but still some knowledge here. A few of the dohc4 members here too.
It looks like the seat on your bike is off a older bike.
by cb650
Tue May 16, 2017 5:21 am
Forum: Technical Discussion
Topic: no gas getting to the cylinders on 1980
Replies: 13
Views: 3947

Re: no gas getting to the cylinders on 1980

also its not uncommon to get the floats upside down
by cb650
Mon May 15, 2017 1:47 pm
Forum: Technical Discussion
Topic: no gas getting to the cylinders on 1980
Replies: 13
Views: 3947

Re: no gas getting to the cylinders on 1980

the isle jets and emulsion tubes for the mains have small holes off to the sides so just poking through them wont get it all.
by cb650
Sat May 13, 2017 3:25 pm
Forum: Technical Discussion
Topic: no gas getting to the cylinders on 1980
Replies: 13
Views: 3947

Re: no gas getting to the cylinders on 1980

did you clean the idle jets?
by cb650
Sat May 13, 2017 2:24 am
Forum: Technical Discussion
Topic: no gas getting to the cylinders on 1980
Replies: 13
Views: 3947

Re: no gas getting to the cylinders on 1980

Those are just vent tubes that originally go to the airbox. Sounds like you floats might be stuck. Did you clean the carbs?
by cb650
Fri May 12, 2017 12:04 pm
Forum: Technical Discussion
Topic: Clutch safety switch
Replies: 6
Views: 2493

Re: Clutch safety switch

anything is possible. there is a neutral safety switch also. if your neutral lite is staying on that is likely your problem.
by cb650
Fri May 12, 2017 3:53 am
Forum: Technical Discussion
Topic: Clutch safety switch
Replies: 6
Views: 2493

Re: Clutch safety switch

the neutral switch and oil press switch are both under the left side cover. Sounds like there might be a issue there or a pinched wire.
by cb650
Sat May 06, 2017 12:14 am
Forum: Bikes
Topic: Parting out
Replies: 4
Views: 2131

Re: Parting out

looks nice to be parting out.
by cb650
Wed Apr 26, 2017 2:26 pm
Forum: General Discussion
Topic: Rear wheel size?
Replies: 2
Views: 1580

Re: Rear wheel size?

where are you ay? The 79 USA Z was 17 but the Euro Z was 18. 18 was a silver regular comstar. the 17 was a black revere.
by cb650
Tue Apr 11, 2017 4:43 am
Forum: Technical Discussion
Topic: The All Too Common Bogging Down
Replies: 6
Views: 2575

Re: The All Too Common Bogging Down

check the pulse generator air gap to. easy check. I bet the jets are to fat too.
by cb650
Thu Mar 23, 2017 4:44 am
Forum: Show it off
Topic: Ready for Spring
Replies: 5
Views: 2718

Re: Ready for Spring

So purdy should cut it up and pant it all flat black LOL





NOT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
by cb650
Thu Mar 23, 2017 4:41 am
Forum: Technical Discussion
Topic: My bike makes terrible hammering sound when idling
Replies: 6
Views: 2408

Re: My bike makes terrible hammering sound when idling

Adjust it at the clutch not the cable. 650 cluches do rattle some when proper
by cb650
Wed Mar 22, 2017 5:19 am
Forum: Technical Discussion
Topic: My bike makes terrible hammering sound when idling
Replies: 6
Views: 2408

Re: My bike makes terrible hammering sound when idling

does it go away when you pull in the clutch?
by cb650
Wed Mar 22, 2017 5:14 am
Forum: Show it off
Topic: Ready for Spring
Replies: 5
Views: 2718

Re: Ready for Spring

love it

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