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Messages - AshimotoK0
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5326
« on: April 02, 2015, 01:19:23 PM »
May be worth trying DK for those tyres they are main stockists for them.
I am going to fit them to my 400/4 and CB250SS and CB350K1 (all same size i.e 3.00x18 front, 3.50 x 18 rear) so that with be 3 sets so interested on a deal on them if anyone else knows the cheapest place. What does everyone use on early 750's as TT100's don't look 'period', as I also need a set for my K0 750 as well.
Ash.
5327
« on: April 02, 2015, 12:38:20 AM »
Been on holiday last 7 days Nige .. still need your address.
Ash
5328
« on: April 02, 2015, 12:36:49 AM »
Don't try softening the K0 airbox to carb 'rubbers' . Tried to soften 4 from a '69 K0 and they came out rock hard after a full night's immersion at >70 deg C. Think they are made of Polyurethane not rubber. Good news is that the funny grommet cover thing on 750 Oil pressure switch softens OK. I remember having chemical analysis of the polymer types on K0 carb "rubbers" done in 2010 and was told the K0 airbox 'rubbers' were PU then. Seems that the softener makes them harder !! K0 carb to head 'rubbers' are nitrile rubber, as are later K7/F2 versions, so they are fine.
Ash
5329
« on: March 24, 2015, 09:54:20 AM »
Will post my pics of the restoration of it when I have blasted it .. it looks nothing like that now. Yea it wasn't Frank's fault he is definitely one of the good guys .. wouldn't hesitate from buying from him again. I think it was due to the fact that the egg-box type foam, leaves areas under the foam open to the elements. Anyone know a source of 10mm thick sheet Dunlopillo red foam?
Ash
5330
« on: March 23, 2015, 04:00:34 PM »
Here is mine...a horror .. I bought recently from Germany for my '69 CB250SS (K0).. It was from Frank at jap2wheelz who normally sells really decent stuff.. He's going to give me a partial refund based on how it turns out. To be fair to him the complete seat looked not too bad.
After soaking in oxalic acid solution for a couple of weeks it has been transformed .. some bu@@er moved our blast cabinet to a spot where there is no compressed air but it's been sorted out now, hence the acid treatment.
Thinking of glass fibre reinforcing the underside to strengthen it. The foam was nothing like I have seen on a Honda before, its a bit like an egg box shaped construction in black rubber foam overlaid with a covering of 10mm skin of red rubber foam (like 750K0). The black foam is in almost perfect nick just need to find a source of red 10mm thick rubber foam 'Dunlopillo' type covering now.
Ash.
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5331
« on: March 23, 2015, 09:32:20 AM »
The black and white photo, Simon posted, shows the bare braided K0 earth cable. These are mega rare now NOS and the Yamiya repro, although cheap enough is sh*te. Second hand ones are always tarnished or totally sha**ed. I have done an 'anatomy' of the original (hundreds of tiny tinned copper wires inside a braided tinned copper sheath) and I am having some brass, then tin plated, terminals laser cut to make a proper repro of this part. Will be a few weeks yet before I have a sample. The later cables are made from the typical PVC sleeved, high current, cable, common to earlier Hondas. I have made a test setup to check the integrity of the soldering of the hundreds of wire cores. This consists of passing a calibrated 100A DC pulse down the finished cable and measuring the voltage drop (mV).
Ash
5332
« on: March 22, 2015, 02:54:51 PM »
5333
« on: March 22, 2015, 12:56:29 PM »
Can you send the email or PM again please Nige , can't seem to find it.
Also found some fine ceramic filler powder for that epoxy .. it cures so hard that you have to grind it to shape it...I fixed a glass tube in a pond heater thingy that had broken for someone at the last place I worked.
Ash
5334
« on: March 21, 2015, 11:46:35 AM »
By the way Ash, not fitted the F2 carbs with the rubbers you did for me yet.
Unbelievably I'm still waiting for the clamp bands to come back from Lancaster Bronze with the new chrome on them. It's now going into week 7. Think they may have lost them and don't know how to tell me. They keep saying on the phone (for two weeks now) they are just going into the chroming tank. They cashed the cheque though.
Will report back when the carbs are back on, if ever!!!
Cheers.
I thought they were supposed to be BZP Roy? That's what I did on the old 400/4 ones I replated for Nurse J. Or does F2 have chromed ones. I know my 750K0 ones are BZP.
5335
« on: March 21, 2015, 11:17:13 AM »
Cheers Ash. For anybody that lifts the seat though, its pretty nasty. Looks awful and ,crikey, the sharp edges to catch yourself on. Think I'm still looking for a new replica seat as my base is also rotted badly. Thanks anyway. Any ideas on where to get a replica seat with the Honda logo anybody.
Yes it doesn't look ideal but the principle of making a short section with the spikes the same way as the original (not as in the video) and then brazing or spot welding it on in damaged spike areas would be a good idea.. For my CB250SS K0 there are no replica bases available so lucky really to have what I have to work on. ash
5336
« on: March 21, 2015, 10:06:16 AM »
5337
« on: March 19, 2015, 09:48:29 AM »
Hi From me .. loads of good stuff on here.
I am just restoring a seat pan from a '68 CB250K0 ..I got it from Germany it looked horrendous on the foam side but I wire brushed it then bunged in oxalic acid for a few days and looking a lot better now (some tw*t at work moved the sandblaster to a place where there in no air supply...GRRR ).
I think you can get barbed side strips to replace raggy ones but can't remember where I saw them. Probably PK or Bobthe seat (Morretti).
Ash
5338
« on: March 19, 2015, 08:35:55 AM »
Liking your work ash, your mind must be doing overtime when you go to bed
pete
Since my 'troubles' a year or so back I find I only need about 5 hours sleep .. it's not that I am stressed or anything .. it's just that you have a million and one little 'projects' to do that went by the wayside when you were feeling shi*ty ! Amazingly I have a project at work, which involves some fairly complicated software that I was trying to get my head around, so after fannying around on bike stuff I decided to try to crack it when bug*er me I had casually joined a forum on line, last week and left details of my application/problems. Checked yesterday afternoon and someone on that forum has written all of the code for me to try out. The magic of forums 'eh. It's like I am the Shoemaker and some little elf has beavered away and sorted my problem out  Hope you are doing better yourself Pete? ..How's the 'thinning of the herd" going down ? Ash
5339
« on: March 19, 2015, 06:15:00 AM »
Ahead of you on that one Hairygit... for once. Assumed Ash was building 1/2 & 1/2 of 400 / 750 wheels. (36 & 40 spokes)
Well.... that's my story...
Well I had to cut the rivet off and Dremel off the epoxy, otherwise I risked damaged to the tank badge (note the old yellowed epoxy on the back of the rechromed badge applied by a P.O. that the chromer couldn't be bothered to remove ( don't use them anymore). Wheels debate:- CB750K0 2 x 40 spoke wheels CB250SS (K0) 2x 36 spoke wheels CB350K1 2x36 spoke wheels CB250/350K0 Cafe. 2x36 spoke wheels 400/4 need to sometime swap the Suzuki Takasago rims I used in '86 (Q.P.Motors Oddjob - remember!) with DID ones 2x36 spoke wheels. So total is 368. Ash
5340
« on: March 18, 2015, 01:56:16 PM »
:-). Ash, did you play opposite Michael J Fox in the 'Back to the Future' film series??? Don't ever apologise for being thorough - I always enjoy your posts mate.
So when are you going to release a Flux Capacitor for the CB750??? ;-)
Need to come up with a gizmo to help me with wheelbuilding, as I will have 10 spoked wheels to do and never done it before! The epoxy is petrol proof . http://uk.rs-online.com/web/p/potting-compounds/1991468/ Looks like I am going to have to cut and grind the b*gger off now! Yamiya do the tank fixings, aftermarket, 'elcheapo' BTW Ha Ha ! Was that a Delorean James? Once had one of these in the same colour as the image , what a POS that was ! [ Guests cannot view attachments ] Ash
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