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Messages - AndyH

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76
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 16, 2017, 01:09:24 PM »
Thanks Julie!  Not bad for an old fart with no prior restoration skills, even if I do say so meself!!  ;D ;D ;D

77
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 16, 2017, 10:40:26 AM »
Sidecovers received from Joe in the US are with the painter today, and will be ready at the end of the week.

With the exception of the side covers, this is how the bike looks now.

 

78
CB500/550 / Changing back to 4 into 4 from 4 into 1
« on: October 15, 2017, 11:25:58 AM »
I'm pondering whether I should sell my left kidney and invest in a set of 4 into 4 exhausts for my "almost" stock resto.

The bike currently has a 4 into 1 (I think it's a Delkevic) and after refurbing the carbs to stock (#40 slow, #100 main, jet needle clip position #3, IMS 1.5 turns out) the motor is still a little "rough" on idle and up to around 3k RPM with no load, a bit "unsmooth".  (Struggling to describe here).

Out on the road the bike pulls nicely over a large rev range (2000rpm up) but still sounds a little bit rough at idle.

I guess my question is: what are the tuning differences between 4 into 1 as compared to "stock" i.e. 4 into 4 which is basically what I've set everything to?  Do I need to do anything?

Cheers
Andy


79
CB500/550 / Re: CB500/4 K0 UK bike
« on: October 15, 2017, 09:38:13 AM »
Thanks for that Graham!  It's nice to know the bike isn't a "bitser"!
According to CMSNL's list, only the US got the K2.  I don't know how accurate that list is.  I imagine Bryan would have a pretty good idea though. :)

80
CB500/550 / Re: CB500/4 K0 UK bike
« on: October 15, 2017, 08:00:29 AM »
Engine: 2153097
Frame:  2064562

Seems to suggest I have a K1 frame with a K2 engine, but I honestly have no idea how AUS bikes were originally set up.
There is no compliance plate on the steering yoke, but I believe these didn't come into play until 1973 in AUS.

81
Humour / Engineering flowchart
« on: October 14, 2017, 11:44:00 AM »
A hammer may be a 3rd option....


82
CB500/550 / Re: CB500/4 K0 UK bike
« on: October 14, 2017, 10:42:46 AM »
Is this numbering scheme and dates only applicable to UK bikes?  If not, I'd like to throw my bike's numbers into the mix so to speak!
 

83
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 14, 2017, 02:33:20 AM »
 ;D ;D

For me the best riding weather is mid 20s Celsius, about  78°F.  In fact, even in mid-Winter here the temp can sometimes be lo to mid 20s.  Plenty of riding times!   8)

84
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 13, 2017, 10:47:19 AM »
Great work, well done..!!

Thanks James, I'm quite pleased that I've been able to get this far, not having ever "played" with these SOHCs before.  :)
My career in satellite technology didn't lend itself to getting particularly oily!  But now I'm retired, the sky's the limit ...well sort of!  ;D ;D 8)

85
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 13, 2017, 01:00:36 AM »
Good news Andy, I really must get mine sorted properly, trouble is every time I feel like doing the job the weather turns out good so I go for a ride on one of my other bikes instead, still winter is almost here!.

I can relate to that!  Fortunately we're moving well into Spring here and my restoration is almost complete so rides are gonna happen!  8)   32°C (~90°F) in Perth today!

86
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 12, 2017, 03:10:37 AM »
Yep, runs perfectly well now Mark.  The carb cleanout/refurb did wonders it seems.  :)

87
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 11, 2017, 11:17:34 AM »
Carb sync....almost there!  8)

https://youtu.be/ns_NmBi9Hl4

88
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 10, 2017, 11:09:01 AM »
OK, carbs have been removed, de-racked, disassembled, cleaned, refurbished, reassembled, re-racked and now on the bench for some checks before returning to the bike.
All is good….so far!


89
Project Board / Re: CB500K1. Cafe Racer to Original...sort of!
« on: October 09, 2017, 11:57:20 AM »
Removed the carbs and deracked them.  Have removed all jets, emulsifiers etc. and given them a good bath in Simple Green in the ultrasonic cleaner.  Amazing how much rubbish is removed with this method.

The emulsifiers were seriously clogged up but all other jets looked OK.   I've completed carbs #1 and #2 and did have to adjust the float levels slightly.  Carbs #3 and #4 tomorrow, then I'll do some further checks on float levels etc., before re-racking.

90
CB500/550 / Re: Keihin 627B identifying unknown part
« on: October 08, 2017, 08:40:46 AM »
I think they are just dust seals to keep the crap out of the mechanism.

I think you're right Mick!  When new, they were probably soft and pliable rubber.  45 years on, they're now hard and brittle and crumbling into oblivion!

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