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SOHC.co.uk Forums => CB500/550 => Topic started by: Erny on September 25, 2022, 08:28:48 PM

Title: Koni shocks - rebuild info
Post by: Erny on September 25, 2022, 08:28:48 PM
Bought set of these length exactly as OEM on my 550K1.

Before installing them, I'd like to perform detailed cleaning and thinking if it is worth to rebuild them. But don't have any info about even do not know exact type.
Also thinking to send spring for chroming..

Any advices, addtional info?

Title: Re: Koni shocks - rebuild info
Post by: McCabe-Thiele (Ted) on September 25, 2022, 09:06:25 PM
Prepare to be shocked at the price of any re-chroming.
Title: Re: Koni shocks - rebuild info
Post by: deltarider on September 25, 2022, 09:26:32 PM
My Koni's are not chrome and - being a matter of taste ofcourse - I prefer the looks of the black ones. I guess it makes a black bike look faster. ;)
Title: Re: Koni shocks - rebuild info
Post by: Erny on September 27, 2022, 10:13:08 AM
Yes, in your case I would accept black too, but for my bike I think chrome would be better  ;)

Prices are raising in Slovakia too, but in 1-2 years timeframe will be even higher, so sooner the better..
Title: Re: Koni shocks - rebuild info
Post by: Erny on April 01, 2024, 08:12:40 PM
My Koni's are not chrome and - being a matter of taste ofcourse - I prefer the looks of the black ones. I guess it makes a black bike look faster. ;)

Reopening this therad - yesterday I wanted to install them on my bike, but I realised that left ne has conflict with chain cover-guard (I forgot to make photos). Options I have are - remove guard (I do not want), modify my guard (cutting piece or using hot gun change its shape where shock is touching it), or the last option (I believe the best one) is to optain another used guard and keep mine as original when I want to return to stock.

Delta - how did you manage that? Maybe you have another type of shocks that don§t have this problem?
Title: Re: Koni shocks - rebuild info
Post by: deltarider on April 01, 2024, 08:35:42 PM
This is quite a coincidence! I was about to post two pics of Koni's with a question myself and maybe it will give you a clue. The other day I was refitting the LH side mufflers, when I saw something I had never noticed before: the clevis of my model Koni shocks are off center. I suppose I must have fit them correctly decades ago as they still function flawlessly. Erny, look at the pictures and maybe your answer is there. Oh... and I have no issues something is touching other parts like the chainguard, so if your Koni's are like mine I would twist them 180o
Title: Re: Koni shocks - rebuild info
Post by: Erny on April 01, 2024, 09:43:00 PM
Ahhh I see now - I have different shocks obviously...looks like yours have steel (chromed) body at the bottom (clevis). Mine are aluminium ones, much more massive. So, I need to look for another solution  :(

And I installed them correcty, there is no way to reverse it anyway - only one hole has thread - it need to go to wheel (bolt comes from pipes side). See pic in the beginning of this thread - this is outside side
Title: Re: Koni shocks - rebuild info
Post by: deltarider on April 01, 2024, 09:49:55 PM
Is there a number on yours?
Title: Re: Koni shocks - rebuild info
Post by: Erny on April 01, 2024, 10:10:15 PM
Need to check, but I did not spot any...
Title: Re: Koni shocks - rebuild info
Post by: Bryanj on April 01, 2024, 11:31:59 PM
Old Konis are difficult if not impossible to get parts for, the later ones you gan get parts from Ikon
Title: Re: Koni shocks - rebuild info
Post by: Erny on April 01, 2024, 11:52:28 PM
Well question is if my shocks (aluminum lower body) are old or newer..
Title: Re: Koni shocks - rebuild info
Post by: Bryanj on April 02, 2024, 12:00:02 AM
Probably older but cant be certain
Title: Re: Koni shocks - rebuild info
Post by: Nashfly on April 02, 2024, 08:30:52 AM
Hagon do a range of shocks for your bike

Link here: https://hagon-shocks.co.uk/product-category/honda/251-600-ccm-honda/shocks-251-600-ccm-honda/cb550-fi-fii-k2-k3/1976-1978/

I have a set on my Enfield (they contact you prior to supplying to discuss rider & pasenger weights befor building them) very pleased with both the price and quality
Title: Re: Koni shocks - rebuild info
Post by: deltarider on April 02, 2024, 10:04:13 AM
Old Konis are difficult if not impossible to get parts for, the later ones you gan get parts from Ikon
That's misleading info, I'm afraid. Parts for the 'old' Koni's are still available through Ikon, as Koni arranged in the deal - when they sold the motorcycle shocks division to the Australians - that Ikon would continue to provide the service. The number on my Koni's is 7610-1302. They are still available, same number, only with the name Ikon. They were and still are popular. I wonder if you have been sold the wrong type, for another Honda 500 or 550.
Title: Re: Koni shocks - rebuild info
Post by: martyn916 on April 02, 2024, 10:36:01 AM
Hi All,

I got a seal kit for my Koni 7610 Dial-a-rides from these people https://www.performanceparts-ltd.com/ very helpful, kit was £37.00 in June 2023. As for oil they and Ikon suggested SAE5, I was going to use either SAE 5 fork oilor straight SAE 5 hydraulic oil (ISO VG 22), as for qauntity the attached image is what they sent me. Hope this is of use.
Title: Re: Koni shocks - rebuild info
Post by: Erny on April 02, 2024, 11:07:19 AM
I need to check if there is some type number on my shocks, but obviously these are not 7610 type. However, length as OEM (~320mm) and except conflict with chain guard they fit
Title: Re: Koni shocks - rebuild info
Post by: Matt_Harrington on April 03, 2024, 10:28:07 AM
Old Konis are difficult if not impossible to get parts for, the later ones you gan get parts from Ikon

Bryan, unless you can point me somewhere else, I can only find parts available from Ikon in Oz. The UK distributor has now stopped importing them. I'm after seals (for my Guzzi shocks)
Title: Re: Koni shocks - rebuild info
Post by: Bryanj on April 03, 2024, 03:53:34 PM
Ñobody apart from ikon to the best of my knowledge
Title: Re: Koni shocks - rebuild info
Post by: dave400 on April 04, 2024, 11:05:07 AM
I need to check if there is some type number on my shocks, but obviously these are not 7610 type. However, length as OEM (~320mm) and except conflict with chain guard they fit

They look like 76k 1320 series shocks ( the number was behind the white plastic cover behind the spring) the same as I have on my 400. I was told by a guy at Koni all the parts are available for the internals as they use the same parts as used in car shocks.
Title: Re: Koni shocks - rebuild info
Post by: deltarider on April 04, 2024, 11:32:36 AM
[...]
They look like 76k 1320 series shocks ( the number was behind the white plastic cover behind the spring) the same as I have on my 400. [...]
76k or 7610? 1320 or 1302?
Title: Re: Koni shocks - rebuild info
Post by: dave400 on April 04, 2024, 11:41:42 AM
76k 1302 stamped in the metal behind the white plastic cover.
Title: Re: Koni shocks - rebuild info
Post by: cb550ninja on April 07, 2024, 01:42:39 PM
Tried to rebuild a pair of 1979 - 76k 1302 with the assistance of Geoff at IKON Australia. A lot of the “new” internals will not fit especially seals, gland nuts etc - access to a machine shop is essential if using original piston rod. The thread in your aluminium body maybe @ 1mm smaller diameter than the new gland nut - although the pitch is same - but a good m/c shop should be able to help. Alternative rod seals are available - but again may have to m/c new IKON nut inner housing to accept rod seal. If you can keep original piston & rebound assembly then it should be OK. A lot of extra hassle (& expense) - otherwise you are looking at new replacement shocks. I preferred the alumin. Original look so persevered with my employers tool room. I think the original Dutch Koni bike suspension was based on old imperial sizes - not metric - IKON stuff seems metric.
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