Two more parts required

Dave came across 2 more parts that we need.

1. The rubber mount to hold the front of the tank to the frame.

2. The mechanism/arm from the seat lock that holds the rear passenger seat in place, currently secured by gravity alone.

I emailed the original seller about these parts but he did not have them.

Apparently the Rubber tank mount is quite difficult to get.

Frame Lug Welded

The left hand lug at the front of the frame near the steering head was welded and re-tapped.

This lug is used to secure the top fairing bracket.

Dave tried drilling it but discovered an ezi-out had been broken off inside it.

So he drilled all around the ezi-out to get it out and then took it to a "guy up the road" to get it aluminium welded and retapped. The guy did an average job. The angle of the lug was square to the frame but is supposed to be square to the centreline of the bike. The lug is also a bit short. This is pretty obvious as you just need to look at the right hand lug and copy that. Ah well.

Cost $40. It will do. But it will need a spacer between the lug and the fairing suppport bracket.

Extra parts from original seller

Today I received by courier:

Side Stand
Airbox Top lid
RHS Switch block (Engine Kill Switch)
Choke actuator/bracket/cable.

These parts came from the guy that I bought the rolling chassis off.
Thanks Flint2 !

NSR250 SP MC18 R6k General Info

1989 NSR250R MC18 R5K & R6K. The face-lift MC18's went on sale in Japan in February 1989 and were immediately available in 3 colour schemes, the obligatory red & white and blue & white, but also a new black, red and silver-grey based on the colours of the successful SEED Racing team. These R5K models are easily identifiable by their high swept silencers, the stainless steel rear pipe from the expansion chambers to the silencers, and the sleeker windshield. They also had 4 large holes in the belly pan instead of the multi slotted panel like the earlier bikes.

The differences were more than cosmetic however... under the seat unit, away from prying eyes, the first of the "new generation" 3D PGM's was installed. This ignition unit was identical in appearance to the RS250's PGM-II but with a tamer ignition map for increased reliability and road orientated performance.

The R5K's were the first model to be fitted with a new 150 section Bridgestone rear tyre too, but still had no multi-way adjustable suspension, although a rear shock, c/w ride height adjuster, was available as an HRC TT-F3 option. No R5K SP's were released so there were still no dry clutch models, but the whole range benefited from an updated closer ratio gearbox. First gear remained the same, but the following 5 gears were closer. The R5K and R6K rear sprocket size was also increased from 41T to 42T, giving the stock bike more punch when accelerating, but the resulting final drive and closer ratios lowered the effective top speed a little, but as these bikes were speed limited anyway, it wasn't of prime concern.

The R6K models were the first true SP's. They sported the similar gold Magtek magnesium wheels as before, but now with the benchmark 150/60 series tyre, first seen on the R5K. This new SP also had adjustable suspension front and rear; spring preload and rebound dampening on the front, and spring preload, rebound, and compression dampening on the rear, and an all new dry clutch based on the RS250 race bikes.

Released to compete with Yamaha's new TZR250 Reverse Cylinder, Suzuki's first RGV250, and Kawasaki's KR1, it was (and still is) an extremely competent road and race bike capable of in excess of 70hp in full race trim! All R6K SP's were only produced in white and silver Terra Racing colours.

I raced an NSR250 in New Zealand in 1990 and can remember the 250cc production class required green number boards with white numbers. I assume this racing standard was an FIM standard that applied worldwide, and hence you see it on the pictures of the bike here.

NSR-World Forum and Website

NSR250.FreeForums,Org

Engine bought off "Ok!Shon"

Overnight Paul won the "OkShon" for the NSR250R-SP MC18

50,000 Yen did the trick.

Today Tuck paid Paul NZ$991.87 ($608 US) with freight yet to come.

The Seller was "fxsts_evo"

The auction closed at (Japan time) Jun 15 23:12 GMT+9

Auction ID 122253141

Our bid was the only bid.

This is the "description from the auction:

Honda NSR250R-SP MC18 was attached to the ”　エンジン　（乾式クラッチ）　” "Engine (dry clutch)"
実働車から取り外しましたが、取り外し後保管期間が長かったため動作未確認です。 取RI外SHIMASHITA from the actual car,未確認work for long storage period after removal.
ヘッドを外し、シリンダー壁を見たところ特に大きな焼付けあとはありませんでした、圧縮もオッケーです。 Remove the head, especially after I saw the printing cylinder wall was not, compression is also OK.
乾式クラッチの間違いなくＳＰのエンジンです。 SP is definitely a dry clutch engine.
画像のとおりキズ・サビなどある中古品の現状販売ですのでジャンク品として出品いたします。 Exhibitors will be sold as junk, so is the current state of used goods in the picture as scratches and rust.
細かいパーツでも入札前に現物の下見をお願いいたします。 Thank you a preview of the real parts in detail prior to bidding. もし下見をされない場合でも画像・質問などで品物をよく理解いただき、落札後はノークレーム・ノーリターンでお願いいたします。 We understand the item in question is not a preview image but if the bid is no claim no return in the thank you.
品物はドロやオイルなどの汚れが付着していますが、特にクリーニングをしないでこのままお送りいたしますことをご了承ください。 Item is attached, such as dirt and oil drops, please understand that it will send this out in the laundry.
詳細はお気軽にご質問ください、わかる限りお答えいたします。 Please feel free to question, as far as we know answers.
発送は佐川急便の送料着払いとなります（その他の発送方法には対応できません） Shipping is freight collect Sagawa Express Shipping (shipped in other ways is not compatible)
梱包は破損防止など考慮した上で、可能な限り簡易梱包となります。 Packaging is considered in the prevention of corruption, and the packaging is simple as possible. もちろん引き取りに来ていただいてもけっこうです。 No, thank you also have to come and pickup.
消費税・システム料など不要ですので、落札代金のみお支払いください。 And we do not charge sales tax system, please pay the bid price only.

Engine Purchase

Paul won ans OK!Shon auction overnight.
MC18 SP engine with dry clutch for 50,000 Yen.
Now we just need to pay for it and get it freighted to New Zealand.

Here is a copy of Paul's email:

Fruity Honda purveyers WON! 50000 yen secured an MC18 SP motor of in-determinate health...will advise initial payment shortly http://www.okshon.com/v.cgi?YYurl=http://page21.auctions.yahoo.co.jp/jp/auction/j21097698 Paul

Cool!

Beginnings of re-assembly

Dave pulled the front wheel off and swapped the handlebars back to being underneath the top triple clamp.
Cleaned the rims and frame.
Welded up the LHS Muffler mount bracket.
Welded up the instrument support bracket.

Tuck assembled the rear subframe under carriage plastic shroud, and mounted the instruments.
Also Dave had some "SuperBike" brand handlebar grips kickin round spare in his shed so Tuck put them on.

Other things that we found we need:
Swingarm chain guide/protector plastic.
Need to weld/straighten the LHS footpeg bracket as it is bent.
The LHS front top fairing frame lug needs to be rewelded and drilled and tapped.
Replace front brake fluid reservoir bracket and associated dodgey bolt.