Riding a 250cc on the freeway?

The TA200 is a "harley-like" thing (Honda).

--
Tony Morris
(BInfTech, Cert 3 I.T., SCJP[1.4], SCJD)
Software Engineer
IBM Australia - Tivoli Security Software

 

I've got an '87 Honda CBR250R and I can cruise in any wind, comfortably at
120km/h. I currently weigh 110kgs, and I've taken my bike up to 165km/h,
only slowing down for fear of loosing my licence if I got caught. At
100km/h, the revs sit at 8500rpm in 6th gear. It redlines at 17500rpm. It's
got pretty good acceleration from 4000rpm, and great acceleration from about
6500rpm (for a 250cc of course). There are no vibrations, or high pitched
screams at cruising speed. With 250's, you gotta keep the revs in the right
range if you want instant power available, otherwise they can take a while
to get them where you want to be...

EM

 

Throttle wide open most of the weekend (for all the good *that* did...)
And there was no "Longest Distance,Smallest cc" award---bugger....
Used no oil,and not much fuel.
Handling not too flash with bulk weight over the back wheel,but got the job
done.

The hills seemed a lot steeper,and the overtaking lanes a lot shorter,than I
remembered.....


Still Vibrating Pat
900km or so later

 

Any Honda dealer / workshop should be able to obtain the jets and fit them.

I am in WA and I got the jets fitted by Prestige Honda , the dealership
where I brought the bike from new.
It cost me about $130 for parts and labour to fit them fitted , $28 for the
two jets and the $100 odd for the labour ( 1 hr )

 

Errm what's the difference between being fat and being heavy ? I would have
thought fat was a subset of heavy (as you could also be heavy through being a
serious body builder or a deformed Tasmanian without too many limbs and heads)

JL
(fuggoff anyway

 

They charge extra to change the gearing, though ...

HARSH WEEK!

-----sharks

 

Yeah true but I did say its good to have another option.

 

This was the same bike which was pushing shit uphill achieving a max speed of
80kph in 3rd gear into a headwind on the highway on the way to Mildura last
year with about 100kg of rider and luggage on board right?

Nev..
'03 ZX12R
'02 CBR1100XX

 

I own a CB250 and occasionally ride it on the freeway ....

The Cycle magazine CB250 road test tached the CB at 6555rpm going 60mph.
I've wired up a digital TinyTach to my CB and at 65mph it's spinning about
6900, at 70 the numbers were dancing around 7300. Max horsepower is reached
at 8000 revs (max torque at 6500) and the redline starts about 8500 rpm.
Compared to scooters like the 14K rpm EX250, the CB is not spinning all that
fast.

The bike will easily tolerate a drop of one or two teeth at the rear
sprocket giving it longer legs for the highway.

As with any naked bike. Fit a screen and tank bag.

 

Replace the #35 slow jet with a #38 and replace #110 main jet with a
#115.

Part numbers from the US CB250 parts catalog:
#38 -- 99103-KR3-0380
#115 -- 99101-GHB-1150

It's been my experience that these jets combined tend to be too rich. The
CB suffers from lean low rpm carburetion, but the top end is adequate. You
could run just the #38 pilot jet to hasten warm-up, eliminate off-idle
stumbles and improve low rev torque, and then shim the needle to dial-in
high revs for that nice tan spark plug. OR, simply reset the pilot screw
(airscrew) and shim the needle. At the Yahoo group the shim mod is
described and illustrated in the Files using a single .024" washer. You can
pull the top off the carb for the mod without having to remove the entire
carburetor like you would for the jet swap.

/Jon

http://autos.groups.yahoo.com/group/CB250_Nighthawk

 

Yebbut, unless the blood of Honda has lessened, even a fuckerty
CB250 isn't redlined at 100 in top. Sure, sure 6-7k out of a
9-10k redline, which doesn't say "casual" to me either.

And Freeways don't tend to go up hill[1] and down dale[2],
so odds are Morphet is not going to have to change down
to fourth for his 24 minute commute, and can thus avoid the
merry song of the bouncing valve no matter his weight.

Anyway, I'm yet to be convinced that soundly flogging
(uh, below the redline) a (modern, japanese) bike is actually
bad for it, so long as it gets properly maintained.

-----sharks

[1] At least not in Victoria, you Foreigners might have got
this wrong
[2] Funny, we were just talking about Cat ...

 

Also rolling friction, mainly due to tyre displacement.
You can, to an extend, negate this with a bit of extra air
in the tyres. It's amazing the difference this makes to
a low-HP bike ...

.... and yes, JL, getting up hills takes a bit of a run-up

-----sharks

 

On Mon, 12 Jan 2004 01:41:20 UTC, Iain Chalmers

} In article <>,
}
} > Tony Morris wrote:
} >
} > >
} > > "this bike would not be appropiate for 100kmh speed for long periods"
} > > agreed.
} >
} > Horseshit.
}
} Well, I'm not sure I've ever done more than 6 or 7 hours continuous at
} 100kmh+ on the Spada (less then 2 hours if you don't ignore petrol
} stops), and I've rarely done more than 3 1000km days in a row...
}
} It all depends on what you mean by "long periods"...
}
} big (Maybe Tony is a geologist?)

In that case even single-digit kms per hour would be blisteringly
fast.

--
// Rik Steenwinkel '85 R80ST Skippy bike
// Enschede '91 R100GS/PD The Great Unwashed
// Netherlands ('76 Honda CB250G Bouwpakketje)
// "Far away is only far away '90 K75C Kommutabike
// if you don't go there" '81 MZ TS250/1+LSW Badkuip

 

In aus.motorcycles on 12 Jan 2004 20:23:38 GMT

Speed cameras for continental drift?

Zebee
- who suspects that the revenue raised would be eaten by inflation
before the ticket is processed.

 

Well, that fat kid of "Hey Dad" probably wasn't all that heavy at the time...

Cheerio! :-D


BTH

 

"Gary Woodman" wrote

That's cheating Gary. Did you check the manual for the Sherman? I'm
sure it's 204 kg.

Theo

 

"Dave_H" wrote

Boeing have heaps of jets.

Theo

 

"John Littler" wrote

It IS still harsh week John.

rev range

But you'll go faster downhill.

Theo

 

"John Littler" wrote

Fat is being heavy for your height. And, if it's your brother, he's
not heavy.

Theo

 

I had a company car in the early sixties that had trouble maintaining
80 km/h with a headwind on the Freeway.

Theo
What idiot thought a Fiat 500 would be OK for a company car? (Hint:
the same guy who decided on Mini's).