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 Topic: MC21 SE Crashed and forgotten 







drunkn munky
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MC21 SE Crashed and forgotten

drunkn munky » Mon Jan 13, 2020 1:47 pm

I picked up this 21se some years ago now, come across it whilst buying a NC30 project and the seller mentioned he had a NSR in a similar state that was imported back in the 90's and had sat in his garage ever since being knocked off it not long after.


Wasn't the prettiest of bikes but for the money it was fair game, it had been sat in this garage for 11 years so i never bothered to try running the engine i knew if it did start it wouldn't last long so out came the engine, replaced all the frame/linkage and headstock bearings, rebuilt the forks with tyga tops and treated it to some BEET rearsets and a new ohlins shock. New C&S, tyga cans, hoses, pads, wheels refurbed with fresh rubber and sourced a half decent set of winners one panels.




The engine was still on the bench stripped awaiting for me to build up the courage and tackle it and find someone to do the crank so i dropped in a dry clutch MC18 motor i had that knew was a runner, then the cadwell classic came around so naturally the NSR got loaded into the van for its first proper ride.

At this point i knew i wanted this to be an all out track bike so a much as i loved the winners one scheme the panels were wasted on it and sold on.

It was around this time id made acquaintances with jonny mac who took on my original 21 motor in a box of bits and made this....

A far cry from what it originally looked like i cant thank him enough for doing this. So with the new motor fitted along came a set of JHA pipes, EBC discs, race loom with hardwired HRC box, some F3 carbs and carbon tray.



The track transformation was starting to take shape, i had a fairing set in the loft id bought some time ago which by coincidence had been cut to fit the fat JHS's so with a new screen brace and a few brackets here and there it pretty much went straight on





The F3 carbs had no provision for solenoids and no TPS fitted so i spent an evening at RSK's on the dyno trying to get to get it dialed in but i think the most we got from it was around 45bhp, not good Sad

We concluded it must be down to the lack of TPS and possibly the air solenoids too so called it a night and went back to the drawing board. Trackday season was on us so i fitted some stock carbs and airbox with TPS and solenoids which made just under 60bhp with a good AF ratio on a quick return visit to RSK's.



Here we are at brands mid 2019 with Jonny mac and Paul g, Thoroughly enjoyed riding the 21 and later in the year also got to the cadwell classic where i really started to gel with the bike.

So this brings us up to winter where the bike is back on the bench having another make over and a few more upgrades which are nearly complete................


Last edited by drunkn munky on Tue Jan 14, 2020 2:16 pm; edited 1 time in total
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