CBR 250 RR, and CBR 250rj, difference

[Toast]

I did find out why it makes that much for a 250 though. And I aint telling

Come on dude, spit!!

And yeah Tristan, that was on the 'Arse Baron' dyno.

[TwoSeven]

The 45 is the factory quoted power at the crank. Dyno measures power at the rear wheel.

No,
The '92 MC22 is capable of 45bhp rear wheel with jetting and pipe. I ran mine at 40bhp using a pipe - didnt see the need for jetting.

The stock pipe and jetting runs the bike between 35bhp and 38bhp depending on which MC22 you have (you tend to get 38ish if you have the 520 chain conversion).

33ish would be about right for an MC19.

[FlyingDutchMan]

No,
The '92 MC22 is capable of 45bhp rear wheel with jetting and pipe. I ran mine at 40bhp using a pipe - didnt see the need for jetting.

The stock pipe and jetting runs the bike between 35bhp and 38bhp depending on which MC22 you have (you tend to get 38ish if you have the 520 chain conversion).

33ish would be about right for an MC19.

The MC19 has a very slightly torquier (4%) engine, and produces the same power as the MC22 engine (45), but at lower revs. I dunno why people think the MC19 has less. The MC19 also has its ignition retarded between 14,000 and 16,000 rpm so that it complies to the japanise law of 45hp. Advance that back in line with everything else and it'll go over 45 easy.

[N4CR]

Can you do that stuff to a ZXR, or not because are they just too cool already.......

Mine was 35.7ps with an aftermarket pipe and jetting/carbs that need adjusting (we all love idling at 2k :|).

[TwoSeven]

The MC19 has a very slightly torquier (4%) engine, and produces the same power as the MC22 engine (45), but at lower revs. I dunno why people think the MC19 has less. The MC19 also has its ignition retarded between 14,000 and 16,000 rpm so that it complies to the japanise law of 45hp. Advance that back in line with everything else and it'll go over 45 easy.

I've only ever seen dyno charts for them in the mid 30s in stock form. Not seen one putting out more than the later model (although I am aware they did go backwards on the very late models).

[Cibby]

I did find out why it makes that much for a 250 though. And I aint telling

oh common sniper..

Please?? PM ME!!

hehe please again???

[Sniper]

My secrets belong to me

[Monsterbishi]

With the CBR250's getting on in years there is quite a spread in power outputs based on wear and tear alone, my old MC19 I'd happily say is in the high 30's bone stock, based purely on how it can still get to it's speed limiter with my 110kg lump on top of it.

Used to feel fast, until I bought the YZF

[FlyingDutchMan]

I've seen you in person man! If you're 110kg stock then I'm a fucken metric tonne - and I still beat XR8s at the lights!

Ya know when I saw you last - the prob with my bike was that it had hydrolocked. Same fucken thing this weekend! Sat morning [s]was[/s]... (man where is the strike through?) would have absolutely beautiful to go out to akaroa and come back this morning. Alsa! My bike had other ideas.

With the CBR250's getting on in years there is quite a spread in power outputs based on wear and tear alone, my old MC19 I'd happily say is in the high 30's bone stock, based purely on how it can still get to it's speed limiter with my 110kg lump on top of it.

Used to feel fast, until I bought the YZF

[FlyingDutchMan]

With the CBR250's getting on in years there is quite a spread in power outputs based on wear and tear alone, my old MC19 I'd happily say is in the high 30's bone stock, based purely on how it can still get to it's speed limiter with my 110kg lump on top of it.

Used to feel fast, until I bought the YZF

Actually.. was yours an '89? Because before that they didn't have speed limiters!

[Monsterbishi]

I've seen you in person man! If you're 110kg stock then I'm a fucken metric tonne - and I still beat XR8s at the lights!

Actually I'm 111.5kg, confirmed on three(one analog, two digital) seperately certified sets of scales at my work Muscle is much heavier than fat, and I've been lifting pig iron for almost a decade now

Isin't there something on cbr250.com about the carbs that causes the hydrolock issue?

[FlyingDutchMan]

Actually I'm 111.5kg, confirmed on three(one analog, two digital) seperately certified sets of scales at my work Muscle is much heavier than fat, and I've been lifting pig iron for almost a decade now

Isin't there something on cbr250.com about the carbs that causes the hydrolock issue?

I know what it is in my case - the tanks rusting from the inside out and all that shit occansionally causes the float valves to be stuck open Should really do something about it some day.

I can't imagine you being that heavy - you didn't look that big! What would your bike have though.. with two of yous on there??

[2wheels in Red Beach]

R's have single front disc and quite a different looking frame to the RR's. I've never ridden an R myself so that's all i can offer

I have a 88 CBR 250R with twin front discs.

[Sniper]

I have a 88 CBR 250R with twin front discs.

CBRR 250 then

[2wheels in Red Beach]

CBRR 250 then

but on all the paper work and painted on the fairing says 250R