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Messages - K2-K6
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31
« on: April 13, 2024, 06:54:49 PM »
On page one this thread, there's three item located on that gear shaft #6, 5, 23 that look like they control lateral location of that shaft.
It doesn't show if thy are internal OR located external on the opposite outside of the case on lever change side.
Is there access to look the shaft location on gear lever side ? Near to sprocket area ?
32
« on: April 13, 2024, 09:54:47 AM »
Difficult time for all the family Ted, with support and consideration so vital in looking after someone.
Good to talk about them in positive ways, to celebrate their life and appriate them throughout the difficulty they experienced.
Best wishes for all of your family.
Nigel.
33
« on: April 12, 2024, 11:44:01 PM »
If you wanted to try something in the way of experimentation, then NGK BPR8EIX may possibly be worthwhile to assess any effects during the flat spot from fuel metering.
The mechanical fit should be equivalent, but you'd need to check side by side to make sure of no anomalies/ impediment before fitting them.
34
« on: April 12, 2024, 08:55:16 PM »
From the plug colour it does seem like its possibly rich enough to knock the edge off response and crispy-ness. Worthwhile turning the idle adjust screws out half turn ...... to judge if there's significant change or not .... as experiment and investigate evaluation. Quick and easy to assess effect, free too 
35
« on: April 12, 2024, 01:38:31 PM »
As a point of interest Mo, which spark plug type are you using in this engine ? The whole designated sequence that is.
36
« on: April 11, 2024, 08:17:24 PM »
One coil only runs cylinders 1 & 4 with the other coil running the 2 & 3 pair.
Easy to quick check, no numbers needed.
Another easy test, if you've any e-z-start or brake cleaner, you can put a little squirt into the cylinder via it's sync port while its running to see if that pot will chime in, obviously then indicates fuel absent on that one.
37
« on: April 11, 2024, 11:32:07 AM »
You could have made some nice one's out of Mrs K's favourite cardigan after I washed it at the wrong temperature And her bobble hat too 
38
« on: April 10, 2024, 05:12:56 PM »
 bonus. Certainly worth talking it through with him, may be able to help out.
39
« on: April 10, 2024, 01:36:08 PM »
The type of place that would do them to spec is a clock repair business, it's sized right in their trade and experience.
They could likely and easily manufacture a set to spec too from simple brass stock in a small collet lathe. They're often making bushes (very similar in size) to repair old clock plates that have worn spindle holes. All reamed to accurate size in matching the tight tolerance needed.
Set of four aren't really much work in total labour time.
Could be an avenue to explore, perhaps if someone else needed some decent quality too.
40
« on: April 10, 2024, 12:55:04 PM »
Yes to ad hoc firing. The coils, two leads ordinarily yellow & blue are down to points to give switching and timing, all left as normal. The other two wires to coil are the supply of positive voltage to power the whole system. Just give them the 12v supply and it'll be live. Make sure you can easily disconnect (crocodile clip ?) In case you need quick shutdown
42
« on: April 09, 2024, 11:55:13 AM »
56 TPI equal to 0.454mm (0.45357) in possibly a Witworth thread form of included angle 55 deg seems to be somewhat in the ball-park for thread type Whitworth quite a possible form as date of record likely fed into bicycle std manufacture, with pitch rather than ultimate other decider to give characteristic tensioning effect that's consistent for X number degree of tightening turn to load the spokes. Thread pitch desirable regardless of spoke gauge would seem logical to wheel building, and so giving likely hybrid to the thread form used, even today.
43
« on: April 07, 2024, 09:29:29 AM »
Was a really good day out last time there.
Meeting others from forum, great bikes, very interesting museum, different bikes running etc. Will plan to get there again for this one.
Also walked out along nearby coast, excellent Fish-n-Chips down by the beach in Aldborough before heading home to finish a great day out.
44
« on: April 06, 2024, 02:33:35 PM »
Tentatively, looks like it may have the unique to F2 oil cooler plate behind filter housing (can't quite see in picture) which could mean F2 bottom end, or fitted to replacement engine as it's just a longer bolt used. Engine number will show case type anyway.
Top "shelf" of head fins look more like K series as the F2 extended out more toward front wheelmin giving more cooling to exhaust port area.
As Bryan notes, could be K top onto F2 bottom end .... or K painted black to look like F2 original.
45
« on: April 05, 2024, 07:43:40 PM »
Any picture of wheel and hub to give idea of model ? Likely that the CB650 was a swap in for original fitment, size parity of model. That seems to agree with your 160 x 40 mm dimension and listed some places as "321" code. https://www.squaremotorcycleparts.co.uk/products/rear-brake-shoes-honda-cb650-cb-650-1983-1985Is the whole brake "track" in the drum obviously used, or perhaps you can see a narrower band of witness mark if too narrow a shoe has been installed.
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