New FZR250

[Tigadee]

...& maybe stiffer fork springs (yams of that era were always soft & cause a heap of dive during braking esp).

You should also run it on 95 octane petrol instead of 91.

Very true...

I have the FZX250 Zeal which uses a detuned FZR250 engine. I had George from Motorcycle Doctors put in 15WT fork oil and just that reduced the diving a lot.

Also, the bike is twitchy on 91, and much smoother on 98. On 91, a small twist of the throttle jerks it forward, while on 98 it smoothly accelerates.

[Juzz976]

There's no replacement for displacement

[numbersixteen16]

Thanks to all, another question though:
Who is a great person to take the bike to, to get work done on it? (North shore/Rodney area if possible). Hopefully I can find someone who knows these bikes inside and out.

[SMOKEU]

There's no replacement for displacement

That must be why most 1200cc Harleys put out less power than a fast 600.

[tigertim20]

Thanks to all, another question though:
Who is a great person to take the bike to, to get work done on it? (North shore/Rodney area if possible). Hopefully I can find someone who knows these bikes inside and out.

these bikes have been around, and been getting worked on forever, any bike shop with a decent reputation will be fine, - its not a Panigale!

That must be why most 1200cc Harleys put out less power than a fast 600.

heh, I have a video of a drag race at a legal event
2008 1600 Harley with a custom solid rear end conversion and a 50 shot of Nos
VS
1991 CBR 600, bog stock, with 140,000km on the clock.

The CBR won.

But theyre totally different bikes for totally different purposes, I dont get why people wank on about 'my bike is faster' - if someone can afford to buy a 2008 harley, then they have MORE than enough money to by a late model thou if going fast is what they wanted to acheive.

Horses for courses, your choices dont always suit everyone elses tastes.

[Juzz976]

That must be why most 1200cc Harleys put out less power than a fast 600.

Apples with apples n all.

[GrayWolf]

I thought anything above 91 wouldnt run well in the bike? Apparently it will change the moment the fuel ignites, and with a high revving bike would ruin the timing?

Get a manual and use what it says. My bet is 91 would work best.

in other countries I'd agree, but the rodent urine for petrol they send us is quite high in aromatic content, when compared to the rest of the world. It's a high revving high performance (250) bike, I would'nt/dont use 91 in any of my vehicles to be honest (and yearly minimum is 20,000ks). So using 95 is highly unlikely to have an adverse effect on the bike, at worst my guess is you may need to alter the grade of plug you are using if you were going to be 100% pendantic.

[speedpro]

My bucket chassis is a 3LN. I've put cartridge emulators in the front forks and the change was well worth it. If you are looking at track days it will be a worthwhile mod. Give Robert Taylor a call.
Your bike may be in good condition but it is still an old 250/4. Leave it alone and just enjoy the ride. Spend the money buying your next bike.

[ducatilover]

Don't do the muffler, you'll need to set the carbs up right (to do it right, it's not just the main jets) and you'll lose what small amount of below 10,000rpm power it has.

Get the forks done, new seals/bushes/fluid.
Re-kit your brakes, seals, lines, fluid and clean the brake pistons/replace if needed.
Get some nice rubber on it and set the rear shock up.

The above will make it and you faster than a silly loud pipe.

As for getting a 250 off the line fast, slipping the clutch and a shit load of revs, not worth it.
Going faster around corners? Don't worry about that part, practice smooth lines and body/head positioning, that'll make you faster than trying to go fast.

Get some riding training or contact a mentor on here and you'll be right!
Have fun, the FZR is a cool little bike.