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Messages - deltarider

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CB500/550 / Re: Brake caliper piston
« on: April 10, 2021, 06:43:37 AM »
Thanks, K2-K6.

CB500/550 / Re: Brake caliper piston
« on: April 09, 2021, 06:30:54 PM »
What's with phenolic? I don't even know what it is. :-[

CB500/550 / Re: Muffler connect rubber insert - alternative?
« on: April 08, 2021, 11:44:38 AM »
I can't get my after market pipes to line up  well enough to get that rubber on properly. 😳
Steris, Sohron's description has helped me a lot. My set is OEM though.

CB500/550 / Re: Cb550K 1978 Needle adjustment
« on: April 05, 2021, 12:31:10 PM »
I don't think you want to remove that pin.

Look down into the top of the slide and there are two screws, undo them on all carbs and you may  e able to turn the lift mechanism fully out of the way to get the needles.

Are you adjusting for pods?
If your screws have been as firmly fastened (assembly) as in the predecessors of your carbs, be prepared. You will ab-so-lute-ly need a JIS screwdiver to unscrew and not ruin their heads.

CB500/550 / Re: Cb550K 1978 Needle adjustment
« on: April 05, 2021, 07:27:29 AM »
I don't know what issue you're trying to cure. Me personally, I'd leave them alone. The effect will be little. Seen that you run pods, I'd concentrate on the main jets. Are the slow jets OK?

CB500/550 / Re: Cb 550 ss spain
« on: March 28, 2021, 01:45:30 PM »
a question for the experts, the bridge top is the same as other models ?, I want to change the one of my motorcycle f2 550 ss 1977
you have more experience than me in this
tank you Enter part no: 53230-390-010 gives:
    CB550FA (76) SUPER SPORT 550 FOUR, JPN, VIN# CB550F-2000003 TO CB550F-2010866
    CB550FA (77) SUPER SPORT 550 FOUR, JPN, VIN# CB550F-2100001 TO CB550F-2114871
    CB550KA (77) 550 FOUR K, JPN, VIN# CB550K-2000007 TO CB550K-2015308
    CB550KA (78) 550 FOUR K, JPN, VIN# CB550K-2100001 TO CB550K-2122082

The part was superseded by 53231-390-010 which gives the same result.

Sorry, I don't know the difference if any. Also note that forsaid parts finder site is about US models.
It could have to do with the changed bolts: 8X56 was changed to flange bolts 7X54 (PN: 90155-369-000) on later models. Could. This modification was done because people sometimes forgot to insert the special 'D' shaped space washers into the slits. When then torqued, the top bridge could crack. If you go to the parts lists, you'll probably find out. They're all here: Let us know. ;D

CB500/550 / Re: Ignition coil performance test
« on: March 08, 2021, 06:42:53 AM »
Thank you, all. Intriguing, that third electrode.

CB500/550 / Re: Ignition coil performance test
« on: March 07, 2021, 08:38:58 AM »
Thanks, Bryan. Was it a set frequency or could you vary?

CB500/550 / Re: Ignition coil performance test
« on: March 07, 2021, 07:39:32 AM »
I'm afraid I still don't understand. The ones next to each other, are they both Ground?
Anyway, this is how I've tested mine (be it statically!) the two plugcables facing each other sharing (and waisting) a spark. The black stripes are 7 mm apart. BTW, the white 'stripe' you see is not a spark, but a mere reflection of light. Has any of you seen that tester in the Honda fig. in real life/ Is it capable of testing dynamically?

CB500/550 / Re: CB550 strip
« on: March 06, 2021, 05:46:03 PM »
To me they look as new. Why did you take it apart?

CB500/550 / Ignition coil performance test
« on: March 05, 2021, 03:30:59 PM »
On p. 90 of the Shop Manual CB500-550 we find a coil test prescribed (see below). I don't quite understand Fig. 275 that shows three pointed electrodes. Why three and not just two?

Longer rubber "bellmouth" ? is to influence lower rpm more than higher range.

The carbs, 4 pipe exhaust and intake would seem to be setup with torque at lower rpm in comparison to the F model that would expect to be ridden at generally higher range. Is the gearing different between the two?
The K3-ED 's rear sprocket had 34 teeth where the F had 37. In continental Europe the K3 was marketed as the tourer version of the somewhat sportier F (see ad below). I remember having seen that even an aftermarket firm had two airfilter elements in their program: for the F and the K3. The wider and smaller opening remains a mystery however, if you see what the traders offer as OEM.

Thanks Oddjob, I wondered if it possibly had to do with the K3's longer rubber boots (or is 'runners' the word?). As for the wider and smaller opening, clearly traders are lost...

Can any of you experts answer the above question, asked on the German forum?
I myself have wondered what it could be, why there is such a price difference and why some elements have a smaller opening engine side. Compare for instance: and

CB500/550 / Re: CB550K - engine rebuild (partial or full)
« on: March 01, 2021, 05:06:54 PM »
Nothing to worry about IMO. Realise that the oil 'consumption' you have, may partly due to unnoticed small leakages. The oil drain screw and the shifter seal are notorious for this. After I switched to Castrol GTX High Mileage 15W-40, which is known for keeping the rubbers supple, oil consumption has been reduced.

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