I would say the NF5 which uses an engine developed from the road bike is the ultimate version of the NSR250 so what self respecting NSR enthusiast would turn down the chance to own one

So when NSR World member Racer38 decided to sell one of his fleet the temptation was to much to resist and this time worn 91 version found its way to my garage.

P3030039 by Paul Goat, on Flickr

P3030040 by Paul Goat, on Flickr

P3030041 by Paul Goat, on Flickr

P3030043 by Paul Goat, on Flickr

P3030044 by Paul Goat, on Flickr

P3030047 by Paul Goat, on Flickr

P3030045 by Paul Goat, on Flickr

Love it! Can't wait to see how it progresses!
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Although the little RS is in fairly decent condition it clearly hasn't run for a number of years and was showing signs of neglect and age. And after drooling over the NF5 and NX5 rebuilds carried out by StNeots motorcycles and Tyga a full strip and rebuild is really the only way forward.

20180712_160807 by Paul Goat, on Flickr

I hope to achieve a similar level of restoration as the previously mentioned StNeots and Tyga restos but within my limited resources and budget.


After the strip down I have decided to concentrate on the chassis first and once this is complete move on to the engine, so the only place to start is the main frame. As some of you will know these are not anodised like the road bikes so are subject to corrosion. Nothing to serious on this one just lots of small areas of pitting.

20181015_114956 by Paul Goat, on Flickr

20181015_115015 by Paul Goat, on Flickr

The only way to really get rid of this is by manual labour I used wet and dry, scotchbrite, phosphoric acid and elbow grease, elbow grease and even more elbow grease

I was quite happy with the result though, my personal preference is for a satin scotchbrite finish, really not a big fan of polished aluminium myself but each to their own

20181019_154633 by Paul Goat, on Flickr

20181019_154641 by Paul Goat, on Flickr

Next up was the swinging arm. This was corroded worse than the frame plus it had the inevitable crash damage with the paddock stand bobbins ground away and a nasty dent caused by the rear set being pushed in to it.

20181109_142130 by Paul Goat, on Flickr

20181109_155115 by Paul Goat, on Flickr

This called for a little more ingenuity and after a bit of thinking I hatched a cunning plan I drilled a hole in the dent and drilled and tapped a piece of mild steel the same width as the extrusion section.

20181109_150051 by Paul Goat, on Flickr

20181109_150324 by Paul Goat, on Flickr

I then annealed the dented area and used part of my blind bearing puller kit to pull the dent out. Simples

20181114_132137 by Paul Goat, on Flickr

20181109_154513 by Paul Goat, on Flickr

It then went for welding and vapour blasting.

20181122_151610 by Paul Goat, on Flickr

20181122_151618 by Paul Goat, on Flickr

Cleaned the welds up and a good going over with scotchbrite and the result was better than I had hoped for.

20181124_132223 by Paul Goat, on Flickr

20181124_132231 by Paul Goat, on Flickr

20181124_132238 by Paul Goat, on Flickr

20181122_151552 by Paul Goat, on Flickr

This stage of any project is probably the hardest, cleaning and prepping parts ready for refinishing and assembly but when you start getting some nice shiny parts back things are on the up Pre and post vapour blasting.

20181022_153857 by Paul Goat, on Flickr

20181122_151229 by Paul Goat, on Flickr

Shiny, shiny

20181205_140732 by Paul Goat, on Flickr

And of course a few hundred quids worth of new parts

20181205_153655 by Paul Goat, on Flickr

My you have been busy spending Paul, what you got from tyga?, I know they don't do a lot of nf5 bits, make sure you get their top fairing mounts. Have you had a word with Andy Sawf yet re cranks? Looking forward to seeing the old gal.
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My you have been busy spending Paul, what you got from tyga?, I know they don't do a lot of nf5 bits, make sure you get their top fairing mounts. Have you had a word with Andy Sawf yet re cranks? Looking forward to seeing the old gal.
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

Hi Les, yes I have been busy spending, pretty much all boring stuff. All new bearings throughout, caliper seals, master cylinder rebuild kits etc, I want everything as close to factory fresh as possible.

20181127_140236 by Paul Goat, on Flickr

The Tyga parts are the rear set back plates they manufacture for the NF5. Not spoken to Andy Sawford yet, will do soon I might buy one of their 92 NF5 seat units. They look a little less boxy than the 91.

Hi PG
Looking good mate, Swing arm vast improvement, its coming together well mate,
all the best,
jonmac,

Agreed... nice job on the swingarm. I'm sure I've got a really nice 91/92 NF5 swingarm somewhere that I was going to look at using on my 89 F3, but I subsequently found a MotoBum F3 arm.
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NSR-WORLD.COM

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Andy wrote:Agreed... nice job on the swingarm. I'm sure I've got a really nice 91/92 NF5 swingarm somewhere that I was going to look at using on my 89 F3, but I subsequently found a MotoBum F3 arm.

Hmm, I do like to hoard a few spares, let me know if you want to sell it

Moto bum swinging arm sounds trick, About time you started bolting some of your HRC stash together

I can only agree
jonmac
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John

Had a nice set of front and rear HEL brake hoses arrive courtesy of Andy

20190225_172616 by Paul Goat, on Flickr

Fronts shown as rear is installed already along with a rebuilt master cylinder - Vapour blasted body, new seals, replated nuts, bolts, banjo and bleed nipple, new rose joint and new Tyga step bracket.

20190225_172355 by Paul Goat, on Flickr

Rebuilt rear caliper, new seals, replated bits and bobs, vapour blasted carrier, rear spindle and nut replated, chain adjusters nickel plated, torque arm vapour blasted and new bearings installed.

20190225_172407 by Paul Goat, on Flickr

What you want Paul, is one of them SPL banana swingers, I have been looking for one for years with no luck. All looking super mate, makes mine look a bit tardy now. What you gonna do paint wise, plain white, brochure colours or a replica?
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