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Frank.61
Joined: 28 Nov 2013 Posts: 108 Location: Maasmechelen, Belgium
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Posted: Sun Feb 09, 2014 8:55 pm Post subject: SB4 restoration |
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Hi,
My name is Frank, Dutch from birth and living in Belgium.
Last November I was reading this forum and I saw Waggy's topic on the restoration of his HB2.
I was impressed to say the least with the standard of his work and it really inspired me hugely to look for a Bimota of my own.
I've always been a huge fan of the KB2 from day one (1981).
Well KB2's are as rare as they come (or very expensive) so having seen the HB2 I regarded them (the whole HB2/3, KB3 & SB4/5 generation) as big brothers of the KB2 and although no concentric swingarm, they have a more inspiring swingarm to compensate for that.
In December, after a 3 week search and an attempt to buy one from Berlin, I bought my SB4 which had less than 5.000 miles in Holland from a classic car trader.
Perfect for what I wanted: a low mileage SB4 ideal for a restoration project.
And although it looks nice on the pictures shown, there were a lot of small signs that this bike needed a full overhaul.
In my next contribution I will tell you how I want to restore it and what the shortcommings are of this SB4 (frame 536190).
I did have some problems with uploading my pictures in Photobucket but here are the pictures before I took here appart.
Well, it's a start
Ciao, |
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Vince186
Joined: 23 Mar 2012 Posts: 636 Location: Nijmegen (Netherlands)
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Posted: Sun Feb 09, 2014 9:28 pm Post subject: |
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Nice
Can’t wait to see more pictures about the restoration. _________________ vince
A person who never made a mistake never tried anything new. Albert Einstein |
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stockcar
Joined: 07 Apr 2011 Posts: 836 Location: in the shadow of the "angel"
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Posted: Sun Feb 09, 2014 9:32 pm Post subject: |
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lovely, and a neat set of EZ clocks to boot....... |
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Frank.61
Joined: 28 Nov 2013 Posts: 108 Location: Maasmechelen, Belgium
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Posted: Sun Feb 09, 2014 9:34 pm Post subject: |
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Hi,
Well since the SB4 started but ran VERY bad I decided not to ride it (or her?) and dismantle it immediately.
Started with the carbs and although not very filthy all jets were covered with a kind of lacquer like substance.
For me a sign the SB4 was not used a lot.
Well I cleaned them around christmas time, removed the black paint sanded the text from the lids an partially repainted them.
Here some pics
Before
After cleaning/stripping them.
Outside of the exterior carburators I've repainted black, as per original.
Rest not since it's easier to keep them clean and see if they leak.
Pic of the black painted carb is not that well in reality it looks the part.
I used VHT paint (should be fuel resistant).
The membranes/diaphragms were o.k. but I 've ordered new ones (replicas) in the USA should I need hem in the future (from JBMindustries).
Since I will mount K&N's, I have ordered a Dynojet stage 1&3 set as also all o-rings (some in Viton) which I will use once I assemble them.
But for sure I will use proper screws instead of the butter quality steel ones used by Mikuni.
Untill next post!
Feel free to respond anyway you like!
Frank |
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Macx2
Joined: 03 Dec 2011 Posts: 44 Location: Wide Bay Queensland Australia
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Posted: Sun Feb 09, 2014 10:44 pm Post subject: |
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It looks like a good bike to restore, Frank. I am 80% through an SB2 and these early Bimotas are very interesting to deal with. Good luck and enjoy!
Ian
Last edited by Macx2 on Sun Feb 09, 2014 11:30 pm; edited 1 time in total |
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CNC
Joined: 19 Jul 2013 Posts: 257 Location: Slovenia
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Posted: Sun Feb 09, 2014 11:18 pm Post subject: |
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This looks like very detailed and professional approach... It is pleasure to watch this pictures. Do cary on!!! _________________ Bimota DB7, Bimota DB5 Mille, Ducati 916, Ducati M900, Benelli Tornado Tre |
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waggy
Joined: 26 Sep 2011 Posts: 277 Location: Northern Ireland
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Posted: Mon Feb 10, 2014 6:46 am Post subject: |
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shes looking great frank, keep up the good work. |
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2bims
Joined: 03 Apr 2010 Posts: 7289
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Posted: Mon Feb 10, 2014 10:34 am Post subject: |
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Very nice Frank....a detailed work of painstaking restoration with great piccies...keep up the good work...it will make a nice record on here of your efforts.. |
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Evilchicken0
Joined: 12 May 2010 Posts: 2996 Location: London
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Posted: Mon Feb 10, 2014 2:28 pm Post subject: |
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Looks good _________________ Don't read everything you believe |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Tue Feb 11, 2014 12:05 am Post subject: |
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This will be another great resto thread to watch! Nice photo's frank. The dash has more guages and idiot lights than my car!
Keep up the good work _________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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Frank.61
Joined: 28 Nov 2013 Posts: 108 Location: Maasmechelen, Belgium
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Posted: Mon Feb 17, 2014 3:08 pm Post subject: |
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Hi,
Has anyone an idea what material is used for the frame and swing arm of the SB4 (basically any 1980-1985 Bimota)?
I know it is a chromium-molybdenum steel but do not know the precise alloy.
If/when it needs to be welded I would like to know what alloy it is.
Want to know the impact if, for example, a small bracket would be attached to it (e.g. for the piggyback of the rear shock).
If so, I want to do it before powder coating the frame.
I have seen a drawing mentioning the thickness of the various tubes used in the frame but no material specifications.
Must be someone who knows?!
Anyone ...... ?
Frank |
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waggy
Joined: 26 Sep 2011 Posts: 277 Location: Northern Ireland
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Posted: Mon Feb 17, 2014 6:49 pm Post subject: |
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Hi Frank,
Not sure of grade of frame. A simple solution that leaves the frame original and unmarked is what I went for. Not the smartest, but will be invisible when the bodywork is on.
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Frank.61
Joined: 28 Nov 2013 Posts: 108 Location: Maasmechelen, Belgium
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Posted: Mon Feb 17, 2014 8:38 pm Post subject: |
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Hi Waggy,
I'm drawing up a clamp but consider also a small bracket should it not materialize.
Your exhaust clamp looks nice (muffler looks impressive, one off?).
Frank |
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waggy
Joined: 26 Sep 2011 Posts: 277 Location: Northern Ireland
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Posted: Mon Feb 17, 2014 9:16 pm Post subject: |
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Hi Frank,
I was lucky that previous owner had a bespoke exhaust and clamp made for it. one less job to do |
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SiBag
Joined: 03 Mar 2012 Posts: 251 Location: Cheshire
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