Immaculate 1981 Surprise

[steve murdoch icoa #5322]

Tony, thanks for posting the tilting procedures again.
Some good reminders for all of us.

[EMS]

I am a little confused....which of the 28 steps are the 24 that make it hassle free...???

..amd one more thing you should not forget is to disconnect the oil pressure sender. The cable is too short for a tilted engine!

[herdygerdy]

I am a little confused....which of the 28 steps are the 24 that make it hassle free...???

..amd one more thing you should not forget is to disconnect the oil pressure sender. The cable is too short for a tilted engine!

Thanks EMS, I figured if the title said 24 and there were actually 28, it could be slightly misleading - hell it was for me and I wrote it!!

Only the first 24 steps are those that are supposed to make it hassle free - the 24th being the "tilty" step itself. Steps 25 - 28 is just optional 'other stuff' to do...um... "while you're down there".

Oil pressure sender (and neutral switch) covered off in Step 20 by disconnecting the green connector.

Hope this clarifys folks, have a fab week!!

Cheers..Tony

[Airborne]

Hello Guys,

The plate is still there and it says 1982, among other things, but it's just a pain to get to it close to photograph it, due to all the cables there.

As for the filter, you are correct, I will have to verify jetting as I pull jets out, as I am not sure whether he put those filters on and ran it, or just did the job before putting the bike to rest million years ago. It will quite soon be apparent as I nearly got the rail out.

I'm nearly ready to do the carb job, but I must say it wasn't easy to remove the carbs out of the manifold. The thick rubber got really hard, however hot air gun made the job a little easier and I got them out. To my surprise, after unhooking all the lines from carbs, choke cable, I found out the throttle cable to be a struggle. As of now, I haven't unhooked it just yet, despite the carb rail being out, I am struggling with it. Is there some trick to get the bottom out of the carb rail or do I just have to make it as loose as possible and wiggle the hell out of it...?

Thank you guys and I will post pictures of the carb rail as soon as I get it out!

Regards,
Airborne

[EMS]

Hello Guys,

The plate is still there and it says 1982, among other things, but it's just a pain to get to it close to photograph it, due to all the cables there.

Regards,
Airborne

Yes, it will say 1982 Model. Also in the right upper corner it will say 9/81. That's the month the bike was built. 1982 CBX models were built from June 1981 through November 1981

[Mello]

Mike Nixon has a great web site
Here's a link to the cable removal / install. http://www.motorcycleproject.com/text/t ... os.html#11

[Airborne]

You guys are amazing, as always! Thank you very much for the videos, it helped me tremendously to get that one last bit out and today I have finally removed the carb rail (photos attached)! Now I will have to disconnect remaining lines and get into those carbs to see the condition inside and I will definitely post pictures of how carbs look with over 20 years of fuel in them!

You were also right regarding the plate, it was so covered with old and stuck dirt that it took the metal brush to discover all the numbers on the top right corner. I didn't do a great job photographing it, due to access, so this was the best I could do, therefore please find it attached.

Thank you once again for your help thus far and I will keep you posted on my progress with the carbs.

Airborne

[Airborne]

Hello Guys,

I am progressing fast on the carbs and I must say that you all were right, only one jet was open, the rest was clogged up, therefore it definitely needed a carb job. Other than jets, everything looks pretty well, but some carb cleaner will definitely do the job.

You have previously mentioned that I should make sure I have larger jets, due to 6 individual air filters. I can confirm now that my father has not replaced the jets and what we have there are stock jets. I tried looking for larger jets online and ebay is full of it, but I could only find larger pilot jets (or so called slow jets): http://www.ebay.com/itm/like/1616983555 ... =82&chn=ps

Would you happen to know where I can find larger main jets and what size should I look for?

Thank you and I look forward to hearing back from you!

Kind regards,
Airborne

[daves79x]

Get all your Keihin jets here: http://pjmotorsports.com/

Your carbs should have 105 mains if they are stock. You'll need to go up to at least 120, maybe 125. The pressed-in #35 are OK as long as they are clean. You can also shim the needles .020 inch, but do the other stuff first and see how it runs. You can remove the tops to get at the needles while they are on the bike.

Dave

[Airborne]

Hello Dave,

Thank you kindly for the response. I looked for the jets you indicated and found this: http://www.pjmotorsports.com/keihin-jets.html#main jets

They are very different from the jets I pulled from the CBX (please find pics attached). Since I am not familiar with the bike just yet, could you please kindly confirm whether these jets will still work, despite being so different? Also, I am understanding that I only need to worry about main jets, not slow jets, correct?

For your interest, please find pics of both jets and carb rail in progress!

Thank you all for your help!

Airborne

[daves79x]

OK, the jet on the left is the main jet still screwed into the emulsion tube. Unscrew the main jet and it will look like what you see on the jet website for Keihin main jets. The other one looks like a threaded #35 idle jet. Only the '82s had those and I guess yours is. Just clean them well and the circuits they feed. You can find replacements for those on the website also, I think.

Hope you plan to split the carbs and install new O-rings. They'll leak soon enough if you don't.

Dave

[EMS]

I am amazed that the emulsion tube came out with the main...

[herdygerdy]

And at the risk of stating the obvious, best way to hold the emulsion tube while you undo the jet at the top is to screw the tube back into the carb body. Nip it up gently, then hold the hex nut firmly with the spanner as you undo the jet from the top with a snug fitting slot head screw driver.

And +1 on cleaning the idle jets and circuits below.

[Airborne]

Hello Guys,

Thank you Dave for great advice, I feel lame now, but had no clue, the jets came out of tubes without a struggle, after I soaked them in a carb cleaner for a few days. Please find pics attached.

The jets are very clean now, but as you have advised, I will have to get a larger ones anyway, since we have individual air filters.

I haven't split the carbs just yet and didn't get to o-rings, but I'm assuming this will be inevitable since I will have to replace seals anyway, correct?

Once again, thank you for helping me get this far, I believe that after I get new jets and seals, it will be a home run!

Kind regards,
Airborne

[daves79x]

Now, if you think what you've done so far is challenging, splitting the carbs to change the O-rings gets really complicated. A whole lot of stuff going on when you do that. Study what you can on the procedure and holler if you need help.

Dave