Hi there
I bought a 1979 CB650. I know that stock, this bike should have piston valve carburators... but I'm not sure if the previous owner(s) replaced the carbs.
The reason I am concerned is because, on this link:
http://www.myhonda650.com/cb650history.htm under "CARBURETOR IDENTIFICATION" it shows the PV carbs should have a long shaped cover on top (sorry don't know the technical name), while the constant velocity carbs have a circular cover on top. The ones on my bike are circular.
My question is... is the information on the above link accurate and complete. And if so, then I must have a set of CV carbs off another CB650 year - how can I accurately identify them?
Thanks!
Identifying between CV & PV Carbs...
Re: Identifying between CV & PV Carbs...
Nevermind, some more searching led me to this link which identifies vintage Honda carbs. Here's the link if anyone else ever needs it:
http://www.motorcycleproject.com/motorc ... specs.html
http://www.motorcycleproject.com/motorc ... specs.html
Lewis
Re: Identifying between CV & PV Carbs...
Most likely swapped heads to unless they got creative with the intakes.
Did you clean the tank out?!?!?!?!
Re: Identifying between CV & PV Carbs...
cb650 wrote:Most likely swapped heads to unless they got creative with the intakes.
I didnt know heads were swappable like that... Now here's something interesting... I cross-referenced my carb casting numbers (VB 44D[A]TK) with the list in the link above... There isn't a match.
81-82 CB650/C VB44A 4 15.5 120 35 NA
82 CB650SC VB44C 4 15.5 118 35 NA
I'm guessing that my carbs is either a VB 44A (and not the D right after the numbers) or it may be from an import market?
Anyone know the next step to ID'ing these carbs?
Lewis
Re: Identifying between CV & PV Carbs...
Welcome here, Lewis!
So basically you have CV carbs. There are some differences, e.g. the idle jets of VB44A/B are pressed in while for VB44C (1982) they are screwed.
From your label it should be really VB44D but no idea which model had them.
So basically you have CV carbs. There are some differences, e.g. the idle jets of VB44A/B are pressed in while for VB44C (1982) they are screwed.
From your label it should be really VB44D but no idea which model had them.
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: Identifying between CV & PV Carbs...
Hijack alert...... Pinhead as you didnt make the relay ride was thinkin we should pick a weekend and meet again. I liked oakley enough to visit it again.
Did you clean the tank out?!?!?!?!
Re: Identifying between CV & PV Carbs...
cb650 wrote:Hijack alert...... Pinhead as you didnt make the relay ride was thinkin we should pick a weekend and meet again. I liked oakley enough to visit it again.
I have a cousin who recently moved to the Denver area so I plan on cruising out there some time this summer/fall. The western KS scenery is pretty spartan so CO may well be a more interesting trip.
Then again, I had planned on being there for the relay this year, too.
Re: Identifying between CV & PV Carbs...
Volker_P wrote:Welcome here, Lewis!
So basically you have CV carbs. There are some differences, e.g. the idle jets of VB44A/B are pressed in while for VB44C (1982) they are screwed.
From your label it should be really VB44D but no idea which model had them.
Turns out the motor is actually from a 82 CB650SC. This thing is full of suprises. I'll try to get a pic of the carbs up sometime soon.
Lewis
Re: Identifying between CV & PV Carbs...
So the engine should be black.
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: Identifying between CV & PV Carbs...
Volker_P wrote:So the engine should be black.
That's right. Which is a little bit relieving since it's SLIGHTLY easier to find parts for an 82 than a 79 I've noticed.
Lewis
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