Just got a mc17 Hurricane & need more HP

[250r-king]

Hi, my Honda cbr250r is quite a solid bike I seem to think its better than the newer cbr250rr mc22? Any info about these or other 4 cylinder bikes of the same era? Appreciate your input in advance cheers

[250r-king]

Hi, my Honda cbr250r is a solid bike which I seem to think is the best(fastest) bike of its time? Anyone know how to get extra HP out of it?

[Akzle]

[OddDuck]

These guys are probably the go-to source:

http://cbr250.com/forums/forum.php

How old is the bike, and what's the service history?

[pritch]

If you need more horsepower (which is doubtful) get a bigger bike. Mucking about with an old bike usually ends in tears.

[kiwi-on-wheels]

New air filter (aliexpress) clean rebuild and balance the carbs, and thats about all thats worth doing. All the power is up the top end, there is next to nothing below 8k

[250r-king]

Yes been in nz since '06 regularly serviced clean as engine for age, previous owner had it for 5 years and installed alarm so its a goer but want more out if it before I upgrade, had it for over month now, could probably hit 180 in 4th-5th....

[250r-king]

If you need more horsepower (which is doubtful) get a bigger bike. Mucking about with an old bike usually ends in tears.

Why doubtful? I have seen some putting out over 70 HP and I weigh 110 kilos so its not as much boost.

[James Deuce]

Yes been in nz since '06 regularly serviced clean as engine for age, previous owner had it for 5 years and installed alarm so its a goer but want more out if it before I upgrade, had it for over month now, could probably hit 180 in 4th-5th....

Comedy fucking gold.

You are hilarious.

[neels]

It's a 250. You're not going to get 70hp for more than about 5 minutes until it spectacularly explodes. And it's ancient.

Buy a bigger bike, and remember torque is what makes you move, HP is what makes for pretty numbers in sales brochures.

[kiwi-on-wheels]

Im parting an mc17 if you need bits ;-)

I also have an mc17 im slooooowly rebuilding. Bit rough around the edges but I doubt I could let it go, such a fantasticly fun bike. Not the fastest by any means, but theres just something about how they go, the sound...

[caspernz]

If you need more horsepower (which is doubtful) get a bigger bike. Mucking about with an old bike usually ends in tears.

Yes.

New air filter (aliexpress) clean rebuild and balance the carbs, and thats about all thats worth doing. All the power is up the top end, there is next to nothing below 8k

Absolutely right.

Comedy fucking gold.

You are hilarious.

JD speaks wisely.

It's a 250. You're not going to get 70hp for more than about 5 minutes until it spectacularly explodes. And it's ancient.

Buy a bigger bike, and remember torque is what makes you move, HP is what makes for pretty numbers in sales brochures.

The brutal honesty stings...

To the OP, by all means service and get (or keep) your hand grenade bike running sweetly, but the old adage "no replacement for displacement" springs to mind

[skippa1]

Yes been in nz since '06 regularly serviced clean as engine for age, previous owner had it for 5 years and installed alarm so its a goer but want more out if it before I upgrade, had it for over month now, could probably hit 180 in 4th-5th....

This is a wind up

[Erelyes]

Right, take the carbs off and jizz into the intakes. You'll need to do each one so you might want to have some oysters beforehand. Or just get your mates to lend a hand. It'll help valve sealing.

[HenryDorsetCase]

Yes been in nz since '06 regularly serviced clean as engine for age, previous owner had it for 5 years and installed alarm so its a goer but want more out if it before I upgrade, had it for over month now, could probably hit 180 in 4th-5th....

please post a GPS track and video of your 20 year old 250 doing 180 in 4th gear.