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Messages - AshimotoK0
1
« on: March 02, 2026, 04:11:06 PM »
Optional 'Violin-case' seat Ian. I sold a NOS one a few years back for £350.
I think the Honda Part No. was 77200-268-820 IIRC
2
« on: February 24, 2026, 11:15:08 PM »
This is exactly the same as mine 1970s Emcomat 7 with milling head. It was made in Austria ....I think more modern ones were made in China ...I don't use it that often ( did woodwork at school  ) ... but really handy for making small parts for my bikes. I paid about £500 for it about 20 years ago. [ Guests cannot view attachments ]
3
« on: February 20, 2026, 09:43:22 AM »
Sorry it's off topic, I fancied a Pink Triangle turntable , just too expensive for me at the time.
I settled for a direct drive Pioneer turntable, dual motor, separate one for the pick up.
I built up my Cyrus system over several years starting with Pre-Amp, Power Amp CD Player, before adding individual power supplies & Bi-Amping. Downsized the speakers to more compact Bose Acoustimass 5.
Sadly only use it a couple of times a year, I just can't bring myself to part with it.
When Wendy was out back in the 1990s I broke several ornaments that fell off the shelves from the vibration caused by my then huge Mission floor stander speakers that could handle the 100 Watts per channel output.
No wonder I now have dual heating aids.😄
Betcha these weren't played on anything as esoteric Ted. Probably a Dansette !  ..... I just had to buy them though because of the cover photo's featuring 'our' bikes ! [ Guests cannot view attachments ]
4
« on: February 19, 2026, 01:29:57 PM »
80s hifi out of the attic to play it.
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Similar here Steve ... had to dig in loft and also buy a Sansui record deck to play my newly acquired 1968 pressing of the Beatles White Album on.
5
« on: February 19, 2026, 10:22:24 AM »
Maybe it should be ' Careful with that leaky CBX CDI Eugene' 
6
« on: February 19, 2026, 08:46:16 AM »
…Bike Magazine once 'Careful with that CBX Eugene'.
I was an avid reader of Bike in the 70s and 80s but I don’t remember this.
Defeated my Google search as well 
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It was probably a comment from Mark Williams ... or may have been in another Magazine ... just sticks in my mind from the hippy days Steve. 
7
« on: February 19, 2026, 07:08:50 AM »
One for the Floyd fans out there ...that I read in, I think, Bike Magazine once 'Careful with that CBX Eugene'. Only old ex-hippes will get that  . Laverda Dave is going to remind us of a magazine restoration of a CBX1000 where they ended up with loads of glass bead media in the finished engine.
8
« on: February 14, 2026, 01:02:12 AM »
CB250K4 UK Model.
Main Jet: #105 (Standard) or #110 (often listed for England models)
Main Jet Primary (small nozzle): #70
Slow/Pilot Jet: #35
Needle Jet: #D207
9
« on: February 13, 2026, 08:14:50 PM »
Always here for you Ken ..you know that mate. Just tell me the make if you know it without venturing outside of course.
10
« on: February 13, 2026, 07:57:40 PM »
Still got my blown Ultrasonic Ash. Never got round to fixing it. If I sent you the PCB do you think you could fix it?
By all means Ken but quite often they require factory matched parts as in post. Chinese ones can be tricky and of dubious safety concerns.
11
« on: February 13, 2026, 07:46:18 PM »
Decided that I have too many CB250/350 projects. I am keeping my '68 CB250K0 (Candy Red), My '70 UK CB250K2 (Candy Gold) and my '69 CB250K0 JDM version(toaster tank, combined clocks etc) !
I am parting out my ultra early VIN '68 CB250K0 (Sardine Blue/White ) and my Candy Blue/White '69 CB350K1 (USA import from Wyoming 10K miles).
The 250K0 Sardine Blue paintwork set I did myself with RS Bikepaint and 2K lacquer with pro-spray guns ( DevilBiss) . it's a lovely Job ... even if I say so myself .. The tank was NOS in primer (Non-sanding as Honda put it ) . The 350K1 paintwork was done professionally in Candy Blue/white.
The 250K0 I have a really early V5 for (the frame No is in the 500's it's that early !) The 350K1 I have the USA (Wyoming) Title.
The bikes are matching numbers. The engines are totally stripped but some really nice parts ( cam and followers are lovely for instance). The lovely condition '68 250K0 frame is in original paint and the 350K1 I had 'sympathetically' powder coated. Seat wise the 350K1 has an either NOS or dealer take off seat (a few minor marks but you would be hard pushed to find a better one... the seat is exactly the same as a CB250K2 model). The 250 K0 seat is in nice condition but may or may not require a new cover ..depending how fussy you are).
The mudguards for the UK model 250K0 (deeply valanced) were both re-chromed by Prestige and are near perfect (cost ££££'s) The 350K0 'fenders' are original and the chrome is lovely with no dents. I have decent carbs for both bikes, clocks,swinging arms, forks Yokes, wheels, chainguards (NOS IIRC), centre /side stands (repainted), rear lamp assemblies etc, etc.
Exhaust wise ... I have loads of genuine exhausts but I won't part with any until I have checked I am covered for the bikes I am keeping . I know I have a spare NOS early-one piece exhaust with one noticeable dent in it.... I scoured the globe for 5 years to find a pristine set of one- piece exhausts for my own '68 ... they really are that rare !
PM me if interested and I will send my WhatsApp number to show photos.
12
« on: February 13, 2026, 05:50:33 PM »
Ash , the one I have is a ex lab Decon model like the beige one in your pics , a 200w version.The QC sticker inside is dated 1990. The problem that I found was with a triac bolted to the earthed chassis. Someone didn't deburr the hole properly and the burr had penetrated the insulator to give an intermittent short. Luckily I had some more insulator pads to fix it after deburring the mounting hole. There's no real chance of getting at the heating element without de bonding the tank from the enclosure. It was electrically leaky sufficiently to fail a PAT test and that's why it was on its way to a skip before I rescued it.
It's amazing the amount of stuff that gets tossed in a skip when a lab closes or no longer needed. My boss would routinely lecture me on hoarding stuff that might come in handy one day, Apparently it costs money to store stuff you no longer need.
Regards
Dave
The Decon ones are much easier to fix apart from the bonded on heater pads. I find the Decon one heats up pretty good anyway without the heater on. The Decon ones have a proper toroidal mains transformer but the Utrawave has just mains rectified power and an output transformer, which drives the bobbin shaped ultrasonic transmitters and provides mains isolation . My Decon one has flat bonded on transmitters . The modern Utrawave cleaners have a PIC micro that drives the power module and if that goes pop you are stuffed as they would never share the code and I bet the PCB costs more than the cleaner is worth. Built in obsolescence eh !
13
« on: February 13, 2026, 02:21:47 PM »
**********TECH OVERLOAD WARNING! ALERT FOR ODDJOB, ETC. ********* I got my ultrasonic cleaner out of the skip at work and fixed it ...made by Ultrawave. It worked great for a while then BANG ! popping all fuses. Managed to fix it but after a few months BANG ! again. When I looked at the bank of output transistors they all had a number hand written on them. I found out that they matched all of the transistors at the factory and I don't have a clue how to do that. I don't think it's just a matter of gain matching... If you don't perfectly match them, then they don't share the current correctly and eventually go BANG! Problem is with the design of these things they are switching high voltages at high frequency into a highly capacitive load. Ultrawave is similar design to this one. [ Guests cannot view attachments ] I do have another smaller one that is of the same era and that seems less fragile. Made by Decon Scientific. Pic is of 300B model but mine is a 400B so larger. Got given it as being 'BER... (Beyond Economic Repair). [ Guests cannot view attachments ]
14
« on: February 13, 2026, 03:52:27 AM »
That was very good Ash, bet it didnt have the vac gauges though!
Nope! ...I have a set of Davida ones though .. £20 from Newark Autojumble
15
« on: February 13, 2026, 03:48:01 AM »
Firstly check you have the correct carbs as they often get fitted with earlier ones.They should be 725B. Spring wasn't available as a separate part ...it comes with the diaphragm / piston assembIy...I would probably assume it's OK unless someone has changed the diaphragm to a 350 one...as I think 350 diaphragms assemblies are different .... I will check on my parts books for you and reply again.
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