1980 honda cb650 custom questions
1980 honda cb650 custom questions
hey evryone, new to the site. well i just bought my first honda cb, i paid 350 it was not running. i got it home and try to fire it up but it looked like the carbs were flooding, i clean them and it stopped, now it runs on choke only. when i give it gas it dies and i can see gas gushing out above DIAPHRAGM SET, PUMP on the 2nd carb in on the left. any ideas? also how and were can i find the parts to lower the rear end of the bike?
- JasonLester
- Posts: 138
- Joined: Tue Jul 08, 2008 11:12 pm
Re: 1980 honda cb650 custom questions
Well unfortunately there is a comon problem on CB650s. The charging system dies at some point. If you have a manual check your system because that may be a problem and it won't help the other stuff. Its not a cheap fix but it has to be done.
As for the carbs unfortunatly the carbs for 1980 are different than other years so I haven''t found rebuilt kits for them. I put seafom in the tank to try to keep from opening them up until I have kits in hand. also check the boots between the carbs and the engine. If they leak then it could be part of your problems.
As for the carbs unfortunatly the carbs for 1980 are different than other years so I haven''t found rebuilt kits for them. I put seafom in the tank to try to keep from opening them up until I have kits in hand. also check the boots between the carbs and the engine. If they leak then it could be part of your problems.
Re: 1980 honda cb650 custom questions
I got my rebuild kits on z1enterprises.com about a year ago. I'm not sure if they still have them available. For all 4 kits it was about $80, so get ready to spend some money.
- JasonLester
- Posts: 138
- Joined: Tue Jul 08, 2008 11:12 pm
Re: 1980 honda cb650 custom questions
Cool site but I don't see any rebuild kits. Unfortunately.
Re: 1980 honda cb650 custom questions
Welcome here!
Good sign that it starts and runs. Your #2 gas leak and dying without choke when turning the throttle gives a hint that the accelerator pump located at carb #2 is leaky. Maybe fixing that already solves your problem. Not sure whether you have to get off the carbs for that, but worth a try to avoid it if your carbs also get out that hard as in most cases.
I see no hint to a charging/ignition problem so far.
The rear shocks turn to early blocking already in stock, so I'd propose you ride for a while and think over lowering again then. If your legs are definitively too short, consider to lower the seat first.
Good sign that it starts and runs. Your #2 gas leak and dying without choke when turning the throttle gives a hint that the accelerator pump located at carb #2 is leaky. Maybe fixing that already solves your problem. Not sure whether you have to get off the carbs for that, but worth a try to avoid it if your carbs also get out that hard as in most cases.
I see no hint to a charging/ignition problem so far.
The rear shocks turn to early blocking already in stock, so I'd propose you ride for a while and think over lowering again then. If your legs are definitively too short, consider to lower the seat first.
Cosky's great (free) online manual: http://cosky0.tripod.com
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
forum links to common technical issues
If you really like this site and you would not like to see it vanish soon, have a look there: Urgent: Future of HondaCB650.com Forum
Re: 1980 honda cb650 custom questions
Have you tried any Honda dealers for the rebuild kits?
I got my 1981 cb650c Kits from a dealer They were around $37.50 each not cheap but they had most every o ring even the ones between the carbs as well also I have heard of a few other places you might get non oem parts Some even have the jets and float valves
Bike bandit is one that had a set for my bike but I did not know if they were a good source or not but some one on here told me they got there kits from them and that they were good to deal with.
But who knows.
I got my 1981 cb650c Kits from a dealer They were around $37.50 each not cheap but they had most every o ring even the ones between the carbs as well also I have heard of a few other places you might get non oem parts Some even have the jets and float valves
Bike bandit is one that had a set for my bike but I did not know if they were a good source or not but some one on here told me they got there kits from them and that they were good to deal with.
But who knows.
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Re: 1980 honda cb650 custom questions
Does the kit look like this?
- JasonLester
- Posts: 138
- Joined: Tue Jul 08, 2008 11:12 pm
Re: 1980 honda cb650 custom questions
I'm not 100 sure but it looks like it. What is that one for and where did you find it?
Re: 1980 honda cb650 custom questions
Do a Honda cb650 search here at the link. It says it's for 79 - 80
http://www.siriusconinc.com/default.asp
This is where I'm getting my carb, brake and clutch kits from.
This place is also on ebay but charges more there.
http://www.siriusconinc.com/default.asp
This is where I'm getting my carb, brake and clutch kits from.
This place is also on ebay but charges more there.
Re: 1980 honda cb650 custom questions
Did the post help or not?
- JasonLester
- Posts: 138
- Joined: Tue Jul 08, 2008 11:12 pm
Re: 1980 honda cb650 custom questions
It helped me...I haven't ordered them but I'm not sure I need them yet.
But now I know where to get them.
But now I know where to get them.
Re: 1980 honda cb650 custom questions
FYI The 79 carbs are the same as 80. 81/82 changed
Did you clean the tank out?!?!?!?!
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