Honda-SOHC

SOHC.co.uk Forums => Project Board => Topic started by: Trigger on May 04, 2018, 07:52:10 AM

Title: Bitsa Project
Post by: Trigger on May 04, 2018, 07:52:10 AM
This started life as the ropiest K3 I have ever seen, now the only original parts that are K3 is, the frame, forks and wheel hubs. The rest is what I had laying round, donated by forum members and bought.


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Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 08:00:39 AM
I bought the original bike for a handful of shrapnel about 3 years ago but, I still shouldn't of bought it !!!
There was absolutely no point in taking it back to standard. My instructions to Trig for this rebuild were 'black and blingy'. I am soooooo please with what Trig has built for me, she is stunning. The only involvement I had with the build was choosing parts that I thought would look good and I made the seat and covered it.
This one is called Millie.

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Thanks to Tim (Rozabikes) for giving me advice on seat foam specs. Thanks also to Piki for the bespoke tank decals, Mr T for the engine, which I swopped a set if Hagon shocks for, Orange peel Neil for the Yoshimura downpipes, Ash for rebuilding the coils and softening me rubbers. Allenchrome for the chroming and zinc plating. Oh, and Trig for overhauling the engine and building the bike.
Title: Re: Bitsa Project
Post by: paul G on May 04, 2018, 08:14:40 AM
Hello Millie 8) 8) I have had the pleasure of seeing Millie in the flesh so to speak :o and it looks better than it does in the pictures.
Which one are you going to be taking out this summer Julie or will you be taking it in turns.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 08:17:57 AM
Hello Millie 8) 8) I have had the pleasure of seeing Millie in the flesh so to speak :o and it looks better than it does in the pictures.
Which one are you going to be taking out this summer Julie or will you be taking it in turns.
Decisions, decisions, what's a girl supposed to do 🙂🙂🙂
As you know Paul, there are lots of bikes here that need to be ridden so they will all have to take it in turns.
Title: Re: Bitsa Project
Post by: andut on May 04, 2018, 08:29:08 AM
Lovelly job - I that exhaust sounds great !

Julie, you're going to have to grow an ironic beard and get all hipster with that in the stable !
Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 08:38:29 AM
Lovelly job - I that exhaust sounds great !

Julie, you're going to have to grow an ironic beard and get all hipster with that in the stable !
I prefer the hair to stay on my head Andy  :o
Don't know what it sounds like yet, will fire her up over the weekend and let you know, or, you may even hear it !!!. It has got a small baffle in so not completely straight through.
Title: Re: Bitsa Project
Post by: mike the bike on May 04, 2018, 08:40:38 AM
It looks like a fun bike to ride.  Well done 👍
Title: Re: Bitsa Project
Post by: JamesH on May 04, 2018, 08:58:27 AM
Very nice indeed. Well done you two.
Title: Re: Bitsa Project
Post by: Johnwebley on May 04, 2018, 09:13:25 AM
Very nice indeed. Well done you two.
You've all done very well !!!

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Title: Re: Bitsa Project
Post by: Spitfire on May 04, 2018, 10:03:53 AM
That's certainly a head turner, nice one

Cheers

Dennis
Title: Re: Bitsa Project
Post by: Seabeowner on May 04, 2018, 11:08:20 AM
Looks like most of the sow's ear went in the bin, but certainly a silk purse now. Two re-new-ed bikes in a few days. Two different styles and will be interesting which gets the most use. Well done.
Title: Re: Bitsa Project
Post by: taysidedragon on May 04, 2018, 03:38:34 PM
Nice job! I really like that.  8)
Title: Re: Bitsa Project
Post by: MarkCR750 on May 04, 2018, 03:56:01 PM
It’s horrible.

Only kidding it’s great, I want one!.
Title: Re: Bitsa Project
Post by: philward on May 04, 2018, 06:15:53 PM
Looks great Julie - very impressive!
Title: Re: Bitsa Project
Post by: Rob62 on May 04, 2018, 06:22:04 PM
Looks very minimal.... very different  8). Where is the number plate going, by the side or under the seat?
Title: Re: Bitsa Project
Post by: royhall on May 04, 2018, 06:32:32 PM
Please say it's not going on the side it's looking so good so far.

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Title: Re: Bitsa Project
Post by: hairygit on May 04, 2018, 06:38:37 PM
Please say it's not going on the side it's looking so good so far.

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I reckon that the plan is to have it low down, I assume that's why the tail light is as low down as it is.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 08:49:16 PM
Please say it's not going on the side it's looking so good so far.

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I reckon that the plan is to have it low down, I assume that's why the tail light is as low down as it is.
Indeed you are correct Mr Hairy. The bracket that Trig fabricated actually sits inside the wheel rim but with enough clearance that it doesn't foul anything. I also have the smallest legal size number plate, so it's quite unobtrusive but still readable by anyone who needs to read it !!

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Title: Re: Bitsa Project
Post by: Green1 on May 04, 2018, 09:39:56 PM
Very smart  8)
You've got me thinking about doing something interesting with one of mine now.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 09:50:10 PM
Very smart  8)
You've got me thinking about doing something interesting with one of mine now.
You moaned when you found out the price to refurb a set of wheels with new rims, SS spokes, vapour blasted hubs and new tyres, new inner tubes, rim tape and new bearings !!!
Title: Re: Bitsa Project
Post by: Green1 on May 04, 2018, 10:00:07 PM
I know but I can dream can't I.
It all seems never ending at the moment keeping the bikes in roadworthy condition.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 04, 2018, 10:06:17 PM
I know but I can dream can't I.
It all seems never ending at the moment keeping the bikes in roadworthy condition.
Dreaming is good, achieving is even better. I know what you mean about keeping all the bikes road worthy, it's never ending. Maybe you should cut down on your bike collection a little.
Title: Re: Bitsa Project
Post by: Green1 on May 04, 2018, 10:11:29 PM
Cut down I don't think so there the only think keeping me sane.
The few hours a year I get to ride or repair/Fuckup I love.
Title: Re: Bitsa Project
Post by: marcgannon on May 04, 2018, 10:42:57 PM
Really nice work!
Just noticed the horn and how it looks similar to the engine covers - it's all about those details.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 05, 2018, 09:02:27 AM
Really nice work!
Just noticed the horn and how it looks similar to the engine covers - it's all about those details.
The horn looking similar to the fins was a total fluke, it's a car horn, cost £6  I think, or maybe £6 for 2 !!!. I like a bike to look nice but I'm  not really into details as such, its all about functionality, rideability and reliability for me.
Title: Re: Bitsa Project
Post by: Tomb on May 05, 2018, 06:26:38 PM
That's really nice, the only thing I don't like is no rear mudguard. Its probably going to be a sunny day bike but you can still get caught in a shower, then you're getting very wet. I know you want the minimalist look but a simple short guard will stop it spraying up your back.

Or is it just me. Really nice bike though ;D
Title: Re: Bitsa Project
Post by: Laverda Dave on May 05, 2018, 06:41:33 PM
Lovely bike Julie. You are going to be spoilt for choice over the summer.  Great to get a project finished for the summer months though  ;D 8)
Title: Re: Bitsa Project
Post by: Nurse Julie on May 05, 2018, 07:07:30 PM
That's really nice, the only thing I don't like is no rear mudguard. Its probably going to be a sunny day bike but you can still get caught in a shower, then you're getting very wet. I know you want the minimalist look but a simple short guard will stop it spraying up your back.

Or is it just me. Really nice bike though ;D
Thanks Tom. It's got an inner plastic rear mudguard but if I do get caught out in a shower, I'm sure I will still end up with a wet arse   ::)
Title: Re: Bitsa Project
Post by: Nurse Julie on May 05, 2018, 07:11:20 PM
Thanks all for your comments. I bloody love it and I will have great fun riding it and that's what it is, a fun bike.
Title: Re: Bitsa Project
Post by: Tomb on May 05, 2018, 07:41:36 PM
The reason I mention it is the bike in my avatar pic (Yamaha he whispers) does the same , it even gets in down my neck, its 'orrible. I'm slowly moulding a new rear seat unit to stop it.
Title: Re: Bitsa Project
Post by: Nurse Julie on May 05, 2018, 08:49:10 PM
The reason I mention it is the bike in my avatar pic (Yamaha he whispers) does the same , it even gets in down my neck, its 'orrible. I'm slowly moulding a new rear seat unit to stop it.
What was that Tom, didn't quite hear, was it YAMAHA :o
Title: Re: Bitsa Project
Post by: Nurse Julie on May 27, 2018, 02:12:03 PM
Millie is all run in now, other than 1 tappet doing a Michael Flattery impression of River Dance, no other issues to report. Therefore, oil and filter change, check and adjust tappets and a general check over of nuts / bolts etc, that's all that needs doing. This is such a brilliant bike to ride, probably the best old Honda I have ever ridden actually, great fun.
Title: Re: Bitsa Project
Post by: Underdog1 on May 28, 2018, 05:42:58 PM
Looking good!

What foam was used for the seat? And how is the seat cover fixed to the pan? Need to sort mine I’ve been threatening to finish for the last millennium
Title: Re: Bitsa Project
Post by: Nurse Julie on May 28, 2018, 07:57:21 PM
I used re constituted foam, 1" thick and stuck 2 together with HD spray glue. Easy to cut to shape and sculpt with an electric carving knife. After I made the vinyl cover, I stretched it over the metal base Trig made for me and pulled the cover really tight and held it in place with that silver carpet tape. We then used this metal upholstery strip but cut the spikes off and drilled through the holes in the metal strip and the metal pan and held the strips in place with pop rivetts.
I'm just about to make another seat for another project bike so I will take some pics of the underneath so you can see what it looks like.
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Title: Re: Bitsa Project
Post by: Underdog1 on May 28, 2018, 08:56:09 PM
I used re constituted foam, 1" thick and stuck 2 together with HD spray glue. Easy to cut to shape and sculpt with an electric carving knife. After I made the vinyl cover, I stretched it over the metal base Trig made for me and pulled the cover really tight and held it in place with that silver carpet tape. We then used this metal upholstery strip but cut the spikes off and drilled through the holes in the metal strip and the metal pan and held the strips in place with pop rivetts.
I'm just about to make another seat for another project bike so I will take some pics of the underneath so you can see what it looks like.
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Nice that’s a massive help!
Title: Re: Bitsa Project
Post by: Nurse Julie on June 28, 2018, 04:30:49 PM
Photos for Phil (Underdog1) of how I made the seat.

The base is 3mm steel, powder coated, with air holed drilled and bolts welded on. Bent to shape at the end to same profile as upswept hoop on bike. A trim of plastic stuck around the edge to stop it cutting into the vinyl covering.

Stuck 2 pieces if 1" foam together with spray glue, drew around the metal base and roughly cut foam to shape with bread knife and then did fine trimming with electric carving knife. Covered foam in a heavy cotton as not sure if foam would hold together after quite a bit of use.

Temporarily stuck foam to seat pan with tape and then made the cover out of vinyl. Heavy duty non stretch for the top and lighter weight with some stretch for the sides.

Put cover on and pulled it as tight as I could, making sure all the seams on the cover were in the right places,and stuck down with tape to hold in place.

Used this metal upholsters fixing strip, which comes with spikes attached but cut and ground the spikes off. Drilled down through the holes in the strip, the vinyl and the steel pan and pop riveted the strip in place, making sure the vinyl was still stretched. Remove tape and cut off excess vinyl.

The last pic shows it in situ but not with the nuts done up yet in the underside if the fixing plate. This is on a work in progress bitsa CB750.

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Title: Re: Bitsa Project
Post by: Nurse Julie on June 28, 2018, 04:33:22 PM
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Title: Re: Bitsa Project
Post by: Underdog1 on June 28, 2018, 06:09:50 PM
Photos for Phil (Underdog1) of how I made the seat
Nice one Julie! Had my seatpan powder coated recently, I’ve welded nuts on the seatpan rather than bolts but looks similar. Good to see how you fastened then cover down as that was what I was still trying to figure out :)

I’ve not drilled any large diameter holes in the bottom for air, going to try without at first as I think there might be enough air gaps between the rivers etc. Can always add at a later date with my bench drill if it doesn’t ‘reinflate’ very well
Title: Re: Bitsa Project
Post by: Nurse Julie on June 28, 2018, 06:16:52 PM
With both this seat and mine it was the only way we could think of attaching the seat to the flat cross bar thingy. Doing it this way just means we can put wing nuts and washers on from underneath, which we thought was less fiddly than trying to get a bolt up through a blind hole. The front of our seat pans lock in under where the tank mounting rubber goes so doesn't need any other fixings there. Your way will work just as well I'm sure.
Title: Re: Bitsa Project
Post by: Tomb on July 11, 2018, 01:58:48 PM
Nice work on the seat.

I've been doing seats for years and found an angle grinder with worn out flap wheel very useful for shaping (very gently), more rounded edges can be achieved. Also for smoothing out the dimple effect of the reconstituted foam being visible through the cover I use upholsterers wadding (click (https://supremebedding.co.uk/8oz-polyester-wadding-roll-27-wide.html?gclid=CjwKCAjw1ZbaBRBUEiwA4VQCIUK7pmLrnHnh1uEZRiqFR3uMcmWpRIccYCxoBuWS91xD1sqnOknERxoCCTEQAvD_BwE)) before the vinyl cover.
There are usually 3 different grades of density of the reconstituted foam, I use the middle one.

And Julie SHHHH! I don't want everyone knowing I ride a Yamaha
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