Topic: CB 550/650 Daily

[Camrector]

That I do Don. But she is the most expensive photographer in the world   

StevO id be concerned for your safety riding around a bike with NY plates lol

[Stev-o]

StevO id be concerned for your safety riding around a bike with NY plates lol

Good point! 

But I have a collection of plates that could easily solve that issue...

[CBGhia]

StevO id be concerned for your safety riding around a bike with NY plates lol

Good point! 

But I have a collection of plates that could easily solve that issue...

Steve only has 2 registered bikes. 
His plates are using Dzus fasteners so he can swap them quickly and cops can't tell the difference between one old bike and another.



*disclaimer  I may have made this up, but it's probably true.

[Camrector]

I mean I can’t ride all my cb550s at once, why do I need all those plates!?

[Stev-o]

StevO id be concerned for your safety riding around a bike with NY plates lol

Good point! 

But I have a collection of plates that could easily solve that issue...

Steve only has 2 registered bikes. 
His plates are using Dzus fasteners so he can swap them quickly and cops can't tell the difference between one old bike and another.

That BS, I have 3 registered bikes, Joe!  Does Vermont count?!!

[Camrector]

All done and running beautifully. Carbs are dialed in. Jetting was very simple on this one. Up one size on the pilot, up one size on the main.

[SOHC4 Cafe Racer Fan]

The bike looks terrific, Cam.  A real sleeper.  I like the many subtle mods, especially the seat.

I think you have the fastest 650/550 in Upstate NY, having beaten GV and Nick in completing the build.

[Camrector]

Thanks Don! If Nick can get a few days free to figure out his efi mod, we will race!! Lol

[Stev-o]

All done and running beautifully. Carbs are dialed in. Jetting was very simple on this one. Up one size on the pilot, up one size on the main.

Nice job, Cam.  Nominated for BOTM....

http://forums.sohc4.net/index.php/topic,169642.0.html

[RAFster122s]

Cam, that looks very very nice.  Hope you can get the rear brakes sorted quickly.  Have you sanded the drum? Roughing up and breaking any glaze that may exist on the drum and the shoes could improve things.  Worth trying and riding 50-100 miles  and using the rear brake to break it inmight be worthwhile.  Then throw a new set of Ferrodo shoes from Vintage Brake on if they do not improve.  Any glazing should come off easy enough with some coarse sandpaper...even if they do not look glazed it cannot hurt them.

Anyone have a metal fork brace replacing the fender mounts with some high carbon steel twice as thick as the stock fork brace built into the fender.  Have it chromed and then rivet it to the fender.  Or rivet it and then chrome the fender and its mounts/fork brace.

Would be interesting to see what a bone stock rebuilt 550, 605cc C.I. build, 605 dynoman, and a 650/550 hybrid stacked up on the dyno and then on a mountain road with lots of curves.
The dyno graphs and lap times for the course with the course being ran 3x to reduce variation.

David

[SOHC4 Cafe Racer Fan]

Seconded.

[Camrector]

Thank you guys
Especially Dave and Dave. I humbly accept Don!

[scunny]

Beautiful looking bike.
Please explain the "2700rpm at 70mph" . is that a typo or do you guys go all out on gearing them down (or up as we say here) ?
My 650 would be doing about 5500rpm then.

[Camrector]

Scunny- Thank you! I used the stock CB550 gearing (17/37). Not sure how I will like this long term.
I’ll put some more miles on it and decide. A 40 tooth rear sprocket would get me very close to stock cb650. I will say I enjoy the cruising smoothness, and the power band is right there if I need it.

[Kemp]

absolutely gorgeous!!

[Camrector]

Thanks Kemp!!

[DaveBarbier]

Update!

[SOHC4 Cafe Racer Fan]

Update!

Apparently riding it now that Buffalo has thawed!

[DaveBarbier]

I’m jealous, I’m still waiting on my triples to come back from Cognito.

[Camrector]

Ride report!
So I’ve been enjoying this bike and riding now that the weather has broke for the past 3 weeks or so.
She’s a beast, pulls strong and doesn’t seem to want to stop. Haven’t really been taking it easy lol.
But today/tonight after an hours ride I believe I had the same issue that Dave B has been having. Cruising along at 65mph bike felt like it started bogging, lost power and died. I checked everything, waited 15/20 minutes and she fired right back up and I rode her the 10 miles home with no issue.
Outside air temp was 86 degrees and the hottest day I’ve rode since finishing the build.

[DaveBarbier]

I’m not sure if it’s good or bad that we’re having the same issue. I was hoping one of my coils were bad but now that it looks like you’re having the same problem I don’t think that’s likely.

[SOHC4 Cafe Racer Fan]

This is why I am lucky to have Dave and Cam shake out the design bugs!

[Camrector]

If this is a over temp thing like Dave and I suspect, do you guys think an oil cooler would help?
If it happens again I’m going to test the ignition with an extra spark plug like cal and Dave have suggested.

[SOHC4 Cafe Racer Fan]

I doubt seriously an oil cooler will help an electronic overheat issue (if that is the issue). A simple test would be to ride without the points cover on and see if the increased air flow over the unit makes a difference.

Of course, a roadside electrical test with a meter when this happens would be helpful. I'm sure Paul would have ideas once you've identified the circumstances.

Perhaps an aluminum milled cover with small induction holes could be trick and a solution.

I would agree with Cal as to oil cooling versus electrical cooling.  Something is causing the electrical system to go kerplunk when it heats up.  Oil temperature should not likely impact this.  (I'm going to run an oil cooler on mine, simply because I ride in SoCal and it gets HOT, especially in traffic.) 
Questions:
(1) Is heat causing the problem?
(2) Is it heat to the coils or the ignition control system?  -- I would ask Paul at C5 his opinions.

[DaveBarbier]

I think Cam’s and my thoughts on the oil cooler would be that the engine itself would be cooled by the cooler in turn radiating less heat into the coils.

I’m not sure about Cam (but it seems it’s the same), but my issue is ambient temperature dependent. When it’s hot (like mid to high 80’s) then it does it. When it’s cooler than that it won’t do it.

I spoke to Paul back in the summer when it happened and he wasn’t too sure the C5 was the issue, then before I could test more it got cooler outside and the issue didn’t arise. Haven’t ridden the bike yet this season. He said that these coils are for automotive use and are designed for high load and heat. His suggestions were to connect the coils directly to the battery for constant power, which I did and to make sure the trigger wires aren’t wrapped around a plug wire, which they aren’t of course.

If it IS the C5 issue with heat, I don’t know if it’s the coils or ignition sensing unit.