[TJR]

i managed to pick up an old beat up nsr250, many parts missing and good condition compared to what has been done to it.

the story goes, "the engine blew" took the heads barrels and pistons off. realized how much it would cost to get the barrels re-plated, then left it in the weather with the top-end off for total of 3 years! while he thought he would save up to fix it....

i've already done a fair amount of work on it but there will be more updates soon,

THE PLAN

well now the list is almost endless.. but i dont have 20 grand to buy HRC parts to make it a real little ripper gp bike but i'm gonna try my best to get the lawnmower to go as fast as i can.

THE BIIKE

for those who dont know what an nsr is,
Its a Honda 2 stroke 250cc water cooled 90 degree twin cylinder,
there are different models featuring (se/sp) featuring dry clutches.
and the R model which features a wet clutch.
also features slide carburetor.


how i bought the bike...

the engine..
as you can see the rust has set in on the crank, conrods and bearings!
the plan was to buy a new crank from japan and put a top end Tyga 300 kit on.
however after making many phone calls i picked up a complete second hand engine from a wrecker in melbourne for $1000 only done 7500km

THE DONK,

the strip down..

melted headlight plugs from using too hot globes..

the carbs.. after a good clean
still have to install a HRC jet kit.

tank work..
as you can see plenty coats of paint on this tank, also a few dents.
now sitting in primer waiting for the next stage!

Frame work....
something had eaten through the anodizing so there was lots of sanding back with 180 and lanox and vinyl cleaner (great surface stabilizer)

Some Supplies arriving , Many many more boxes of goodies to come!
(no it is NOT vinyl 3d look carbon)

 

[Guest]

Awesome!

 

[zane]

brilliant, good job so far!

 

[Aduro]

Awesome!
lol three years with the head off, some people negligently abuse bikes so terribly.
are those metal slides for the carbs?

 

[GSXR750K4]

Awsome brother!! I also have an MC21 and an MC18..

Finally a decent thread on this forum..

Best of luck getting a HRC jet kit.. But while your looking for one, look for two, for me..

Where in Aus are you??

 

[TJR]

Awsome brother!! I also have an MC21 and an MC18..

Finally a decent thread on this forum..

Best of luck getting a HRC jet kit.. But while your looking for one, look for two, for me..

Where in Aus are you??

i'm in canberra. (**** city)
but some great road's here!

i've found tyga have many connections just need to ask. if your serious about buying they really help heaps! slip stream performance also has many hrc parts but no jetting kits.

i have seen a couple of hrc carbs on the japan online auctions. but they are about 800 bucks delivered.

 

[cams]

nice looking project you have their, I can not wait to see the updates.

I think I bought the CBR250RR off the guy that lives up the street from you early last year.

 

[GSXR750K4]

I get on the Jap auctions, even signed up.. But do to its retardedness, could not buy anything..

Sussed out Slipstream already and have nearly every single NSR page, forum and dealer saved to my favourites..

Who bloody sells the air solenoid jets??

 

[A.C]

Keep on eye on nsr world . Plenty of good info and classifieds section.

 

[Hessian]

Very nice! I cant believe the rust involved Like the stabbed pistons

 

[Merudo]

bloody hell. awesome thread.

count me as a subscriber. God I want something 2T again...

 

[psidey]

I'm right behind Merudo, add another subscriber to that list. When talking about metal, brown is the one colour that, when found either on the inside or the outside of a motor, (not to mention one as precious as this one), makes anyones heart bleed. It is a pity and it is a shame to see such neglect as this and especially when it involves a rare gem like yours.

The past is the past and fortunately for this NSR it appears that a white knight has come to the rescue and their is now renewed hope that the past just might be reversed. Wishing you all the best of luck on what will certainly be a long journey with lots of legwork and nothing short of a boatload of effort on your behalf. This will become a very exciting restoration for both yourself and, what I'm sure will become, a large gathering of highly curious members whose numbers will only increase with each successive post.

 

[rickybobby]

great stuff! looks like a big rebuild project! cannot wait for the final restoration! goodluck bro

 

[TJR]

thanks guys..
just started my first carbon fiber fabrication today, shall up date with pics soon.
still many many more to come.

 

[TJR]

ok, finally getting the hang of this carbon business. quite a tricky job getting the carbon down smooth while having incredibly sticky fingers and epoxy everywhere! Then waiting hours to cure in this damn winter cold. thinking about investing in a vacuum bagging set up.

the airbox, only getting started.

the chain guard, using the old guard as a mold.

after trimming the carbon off, still have to sand it all back and reinforce underneath.

 

[psidey]

TJR:

Though it appears you are making a big mess with the resin goop, the fact of the matter is that even though you are messin' around, when it comes to fabbing parts, you really are NOT messin' around, nice work indeed !!!

 

[mekros]

since you're going HRC jet kit, you should have tried to have made yourself a replica HRC airbox.

Nice work though, keep up the progress. Are you planning to do any work to the suspension?

 

[TJR]

Frame work...

one thing i love on bikes is a beautiful fame, the easiest option is to paint it black but i love the original brushed look.
so i've work hard and long sanding and grinding away at the frame almost finished prepping the frame,
been sanding it back and grinding away at the excess castings really cleaning it up.
i would get it powder coated but from factory i believe they are anodized. powdering coating over anodizing if you have not removed the anodizing properly results in bubbles and crap all through the powder coating, the only way to remove the anodizing is to soak it in caustic soda. to do that i would have to remove the hardened steel bearing seats and the rubber engine mounts. these are a pain to press back in so as result i will clear the frame.

there are many different forms of clearing but one gets remarkable results and doesn't go yellow in color when exposed to uv rays for an extended period of time.
2 pac and acrylic both tint yellow, so i will be using a product called nycote, its bloody expensive at $165 a liter.

[hr]

since you're going HRC jet kit, you should have tried to have made yourself a replica HRC airbox.

Nice work though, keep up the progress. Are you planning to do any work to the suspension?

since its not going to be a track bike, no.
stock the nsr's are great, the only thing for the moment i will be adding will be a steering dampener new seals and oil, later on i might upgrade the rear shock.

 

[juxt]

So before everyone else asks... how hard is it to start making basic shapes out of carbon fibre.
Any helpful links you might be able to put up?
Would you be interested in making a couple of one of small pieces for other forum members?

 

[TJR]

So before everyone else asks... how hard is it to start making basic shapes out of carbon fibre.
Any helpful links you might be able to put up?
Would you be interested in making a couple of one of small pieces for other forum members?

very basic parts are fairly easy, to get started very expensive for small stuff.
talking $100pm for carbon, $70 + for epoxy resins, then need acetone for cleaning, mixing cups, gloves, and brushes. then need to clear coat with either 2 pac or nycote..

cant buy 2 pac in pressure packs (that i know of) but can get nycote for $58 per 300g can. other alternative you will need air compressor and hoses, water trap and of course the gun, then you need the paint...

as you can see it all adds up but at the end of the day you have all the equipment and some supplies and this opens many doors. only thing you need is time.

once i do a few more parts i prob will offer it to someone who is willing to loose their heel and chain guards for 2 weeks while i make some molds in return for some carbon parts.