hi everyone. i am about to get my nsr going again after a long time off the road. it was a stock mc16 when i blew a cylinder but im fitting my rebuilt mc16 motor to a mc21 chassis. so im hoping someone can offer me some good advice or info.
i have a stock mc16 motor in good cond, my carbs are ta20.a wich i believe are off a mc18 and will probly run stock mc21 chambers and cans. my electrical system is stock mc16 wiring loom with all stock mc16 parts ie coils cdi's etc.
my main concern is with the jetting, the jets are stock mc18 130+132.
im also interested in my cylinder porting. its hard to find any info on thus but im led to believe the mc16 porting is conservative compared to later models. is this true and in what ways? any help would be much appreaciated thankyou.

have you already considered going mc21.

I ride an mc16 so don't what to put you off but how much of the mc21 do you have and wouldn't it be better flogging all the mc16 bits for an mc21 engine. you'd probably get a track day nail with enough bits to get you going and since you don't seem affraid to get your hands dirty, why not

swaping an engine over for different models i would of thought the biggest problem is the electronics. if you are intending on putting the mc16 engine in, isn't it going to be an under powered bike as from what i have seen the mc16 can't produce anywhere near the power you might want. i mean it'd be like putting a 1992 cbr600 engine in a 2001 fireblade i.e. both very nice but the conversion should be the other way around.

however, i'm not knowledgable about these bikes so maybe someone else has tried it might not share my opinion.

good luck anyway, looks like your going to have hours of enjoyment which ever way you go.