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K100-forum.com » Off Topic » 195HP in a 120Kg Bike

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1Back to top Go down   195HP in a 120Kg Bike Empty 195HP in a 120Kg Bike Fri Oct 11, 2013 11:26 am

Guest

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I've been sick and watching TV while drifting in/out of sleep the last few days. One of the channels here shows motoring shows all day. One was about past GP bikes. They had a V4 yamaha 2 stoke 500cc with twin crankshafts that generated 195HP from 6K RPM all the way to 14K RPM in a bike weighing 120Kgs. Cripes, what a death machine. A big winner from the late 70's through to the early 90's. 120Kgs !!!!!!  They said the frame design is still a blueprint for todays gp bikes.

    

2Back to top Go down   195HP in a 120Kg Bike Empty Re: 195HP in a 120Kg Bike Fri Oct 11, 2013 11:51 am

92KK 84WW Olaf

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Two TZ250s mated together? I remember the bikes and they were something. Black yellow and Kenny Roberts and awesome sounds...


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

3Back to top Go down   195HP in a 120Kg Bike Empty Re: 195HP in a 120Kg Bike Fri Oct 11, 2013 11:58 am

Guest

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They talked about the 250 next and it was a twin V. It was developed from the 500 where it is normal to develop from the 250 up. Hence the 250 was a physically bigger bike to ride. They said Honda had a patent on putting carbs between the cylinder V's so yamaha had to put the carbs trailing each pot, not ideal, but they still had a winner. They also mentioned that they modified the fairing and that mod gained 5MPH down the straight. What a knife edged business it is.

    

4Back to top Go down   195HP in a 120Kg Bike Empty Re: 195HP in a 120Kg Bike Fri Oct 11, 2013 7:51 pm

keefk1100lt

keefk1100lt
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A friend of mine, one Daniel Jackson, is currently 250GP UK National Champion.

His TZ250 puts out in excess of 95 horses and weighs next to nothing. Two people can easily lift it onto a bike lift. A fearsome machine!

Tomorrow is the last race of the season at Thruxton, if he manages to get a second place, he'll be champion again. Which has not been done before in two consecutive seasons.

I'll be there to cheer him on.

This is Dan at play...

195HP in a 120Kg Bike Dan_knee_down

    

5Back to top Go down   195HP in a 120Kg Bike Empty Re: 195HP in a 120Kg Bike Fri Oct 11, 2013 8:25 pm

charlie99

charlie99
VIP
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still haven't figured out why they put the air induction from the rear
traditional maybe ?

makes sense to put it the other way round ...like Toyota and so many others have done these days  and get a pressure advantage whilst at speed  rather than a pressure depression.
 besides we all know the advantages of cold air intake .....having said that ...we have moved on from carburettors that used the hot gases to help with atomisation .

just a thought


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

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