1980 CB650z RC03 Café Racer (ish) project

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MiGhost
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby MiGhost » Wed Jul 31, 2013 7:03 pm

pabs11 wrote:Ok, after a lot of searching, I cant seem to find them online for the year my bike was made in. I have a 1979 honda cb650. You think it would work with my carbs? they seem to look identical to your from the outside.

Could someone also point me to where i can purchase these jets?

Thanks for your help guys, I appreciate every help I can get.

Thanks


The 79. and 80 both used the PD50 mechanincal carbs. Look at the link in my signature for more info on them.

Ghost
~ Ghost

PD50 Carb Info
82 CB650SC Brake Caliper Info

Stable
Wayward Son:1980 CB650C, RestoMod Period Custom Touring
Bad Moon: 1983 XJ750MK Midnight Maxim, Full Dress Tour Deluxe w/ X-1 Fairing
Nemesis: 1983 XJ750K Maxim, Old School style chopper

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JorgenL
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Location: Helsingborg, Sweden

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby JorgenL » Thu Aug 01, 2013 4:53 am

pabs11 wrote:Ok, after a lot of searching, I cant seem to find them online for the year my bike was made in. I have a 1979 honda cb650. You think it would work with my carbs? they seem to look identical to your from the outside.

Could someone also point me to where i can purchase these jets?

Thanks for your help guys, I appreciate every help I can get.

Thanks


I bought my jets from www.siriusconinc.com. I don't know if it's the same jets on a 79. My carbs are PD51A.

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Kaptajnen
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Location: Copenhagen, Denmark

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby Kaptajnen » Thu Aug 01, 2013 8:28 am


pabs11
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby pabs11 » Sat Aug 03, 2013 2:49 pm

Thanks again, for all your help guys. I starting to think that our carbs are not the same, judging by the slow jet on your carbs that can be screwed off and on. The slow jet on my 79 cb 650, is molded on the carb it self, so I am pretty sure i cannot take them off, or maybe there is a trick i dont know about.

Thanks again guys, hopefully the stock slow jet doesnt give me too many problems.

Daniel92
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby Daniel92 » Sun Aug 04, 2013 2:23 am

Hi JorgenL great looking project do you still have the factory rear tail light? and if so would you be interested in selling it as parts in Australia for the cb650 are very scarce and i cant find any replacements ill probably having more luck finding rocking horse dung than parts over here :p

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JorgenL
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Location: Helsingborg, Sweden

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby JorgenL » Sun Aug 04, 2013 3:58 am

pabs11 wrote:Thanks again, for all your help guys. I starting to think that our carbs are not the same, judging by the slow jet on your carbs that can be screwed off and on. The slow jet on my 79 cb 650, is molded on the carb it self, so I am pretty sure i cannot take them off, or maybe there is a trick i dont know about.

Thanks again guys, hopefully the stock slow jet doesnt give me too many problems.


The only jet that I can screw off is the main jet. The slot jet is pressed in and protrudes maybe 12 mm from the carb. It's removable by grabbing it with a pair of pliers and twist while pulling straight out.

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JorgenL
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Location: Helsingborg, Sweden

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby JorgenL » Sun Aug 04, 2013 4:04 am

Daniel92 wrote:Hi JorgenL great looking project do you still have the factory rear tail light? and if so would you be interested in selling it as parts in Australia for the cb650 are very scarce and i cant find any replacements ill probably having more luck finding rocking horse dung than parts over here :p


Daniel
Unfortunately my taillight was cracked with pieces missing and in very bad condition so I threw it away.
I believe I have seen some on ebay.de although my german is a bit rusty.

pabs11
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby pabs11 » Mon Aug 05, 2013 12:58 pm

If you ripped out the jet, how did you attach your slow jet? is there threads?

Thanks

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JorgenL
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby JorgenL » Mon Aug 05, 2013 1:23 pm

pabs11 wrote:If you ripped out the jet, how did you attach your slow jet? is there threads?

Thanks


I wrapped my slow jet in a piece of cloth (to protect it) and pulled it out with pliers.
The new ones can be pressed in and seated using a small hammer and a block of wood to protect the jet. (knock them in gently)
It's even possible to put back the original jets if you just cleaned them.
The slow jets are not threaded. They look like this. http://www.jetsrus.com/photos/photo_jet_keihin_3L.jpg

pabs11
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby pabs11 » Tue Aug 06, 2013 1:03 pm

So you mean to tell me your slow jets (42), are just wedged in there, with not bondage adhesive what so ever?

I have a history of screwing up, you think its a hard job and not recommended for a guy like me that is new to all this?

Thanks

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JorgenL
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby JorgenL » Tue Aug 06, 2013 1:17 pm

pabs11 wrote:So you mean to tell me your slow jets (42), are just wedged in there, with not bondage adhesive what so ever?

I have a history of screwing up, you think its a hard job and not recommended for a guy like me that is new to all this?

Thanks



Yup just pressed in without anything else.
I have removed them from two different carb racks and it was very easy. Twist a little while pulling straight out, don't wiggle.
I really didn't think much about it when I did them because it was so easy. Just find some pliers that make a good grip. I used an adjustable polygrip plier, like vice grips.

MiGhost
Posts: 379
Joined: Tue Jun 07, 2011 2:30 am
Location: South Central Mitten

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby MiGhost » Tue Aug 06, 2013 11:39 pm

pabs11 wrote:I have a history of screwing up, you think its a hard job and not recommended for a guy like me that is new to all this?

Replacements are easily available. So don't worry about "what if".

As Jorgen mentioned. Use a piece of cloth to keep from scratching the brass, and twist as you pull straight out.

Ghost
~ Ghost

PD50 Carb Info
82 CB650SC Brake Caliper Info

Stable
Wayward Son:1980 CB650C, RestoMod Period Custom Touring
Bad Moon: 1983 XJ750MK Midnight Maxim, Full Dress Tour Deluxe w/ X-1 Fairing
Nemesis: 1983 XJ750K Maxim, Old School style chopper

pabs11
Posts: 58
Joined: Sat Jun 08, 2013 4:36 am

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby pabs11 » Wed Aug 07, 2013 12:58 am

thanks guys, I feel a lot more confident.

Aridecommando
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Re: 1980 CB650z RC03 Café Racer (ish) project

Postby Aridecommando » Wed Aug 14, 2013 1:04 pm

Did you have to change the jets to run the pods? How does it run with the pods?

pabs11
Posts: 58
Joined: Sat Jun 08, 2013 4:36 am

Re: 1980 CB650z RC03 Café Racer (ish) project

Postby pabs11 » Wed Aug 14, 2013 4:10 pm

reading earlier into this thread, I realized i was going to have a hard time tuning my carbs with the stock jets and air pods.

I actually got my new jets on my carbs and now i am just assembling the carbs together and it should be ready to go. I hope things go smooth.

PS

The slow jets were a lot easier to take off and put than i thought. Thanks again for all your help guys


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