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Author Topic: 1980 KLX 450  (Read 10574 times)

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Offline Graham

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1980 KLX 450
« on: May 15, 2013, 08:27:46 pm »



Running in this weekend,Yamaha TT 250 engine bored and stroked to 420cc, with a 40mm kx 500 carb,and methanol for garnish.
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Gosh its a shame a slow 4 stroke trail bike can go so Fast !!

Offline Doc

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Re: 1980 KLX 450
« Reply #1 on: May 15, 2013, 09:24:01 pm »
factory  8)
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Offline NSR

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Re: 1980 KLX 450
« Reply #2 on: May 15, 2013, 09:41:19 pm »

Cool bike,   

Quote
Running in this weekend


At Conondale? Graham

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Offline John Orchard

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Re: 1980 KLX 450
« Reply #3 on: May 15, 2013, 10:01:02 pm »
Wow very nice, how much of a headache was the carburation?
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Offline firko

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Re: 1980 KLX 450
« Reply #4 on: May 15, 2013, 10:09:39 pm »
I love it, if you were just a casual observer you wouldn't notice the engine swap....the mark of a well thought out hot rod special. ;)
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'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline Graham

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Re: 1980 KLX 450
« Reply #5 on: May 16, 2013, 05:17:00 am »
Quote from: NSR on May 15, 2013, 09:41:19 pm

Cool bike,   

Quote
Running in this weekend


At Conondale? Graham


  Wanted to Noel but run out of time so will take it somewhere quite,and see what she does
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Gosh its a shame a slow 4 stroke trail bike can go so Fast !!

Offline Graham

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Re: 1980 KLX 450
« Reply #6 on: May 16, 2013, 05:27:36 am »
Quote from: John Orchard on May 15, 2013, 10:01:02 pm
Wow very nice, how much of a headache was the carburation?

No problem with the carb, methanol is easier to set up than petrol,had to drill threw the frame to run the throtle cable,  the headake was the kick starter,had to weld 2x knuckles together to get it past the frame.
The cradel of the frame is all original, the head stay had to be repositioned,and a plate welded in for the lower mount and a gusset removed below the air box.
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Gosh its a shame a slow 4 stroke trail bike can go so Fast !!

Offline JC

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Re: 1980 KLX 450
« Reply #7 on: May 16, 2013, 11:00:05 am »
Quote from: firko on May 15, 2013, 10:09:39 pm
I love it, if you were just a casual observer you wouldn't notice the engine swap....the mark of a well thought out hot rod special. ;)

Agreed. Sure looks nice, tho the rear guard looks at a bit of a strange angle
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oldfart

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Re: 1980 KLX 450
« Reply #8 on: May 16, 2013, 04:33:01 pm »
Graham .... Game on at Warralong next weekend eh  ;D
Nice bit of tackle there  Ole mate.

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Offline cloggy

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Re: 1980 KLX 450
« Reply #9 on: May 16, 2013, 05:57:34 pm »
 Back in the day they reckoned you needed 20lbs of air pressure to help the weedy springs. You can cut the springs down a bit before it gets coil bound but it's still a tad soft
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Offline Slakewell

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Re: 1980 KLX 450
« Reply #10 on: May 16, 2013, 06:35:58 pm »
Interesting scooter
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Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle

Offline RD

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Re: 1980 KLX 450
« Reply #11 on: May 19, 2013, 06:39:25 pm »
Graham looks great!
What class will you race it in?
Cheers
Roger
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Suck Squeeze Bang Blow

Offline Graham

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Re: 1980 KLX 450
« Reply #12 on: May 20, 2013, 06:39:27 pm »
Quote from: RD on May 19, 2013, 06:39:25 pm
Graham looks great!
What class will you race it in?
Cheers
Roger

It will be evo open. ;D
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Gosh its a shame a slow 4 stroke trail bike can go so Fast !!

Offline ghostdancing

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Re: 1980 KLX 450
« Reply #13 on: May 25, 2017, 04:38:35 am »
Graham, if you are still here.. will be happy to get some more info about the bike, as i'm considering to build a similar hybrid
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Offline Curtis

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Re: 1980 KLX 450
« Reply #14 on: May 25, 2017, 09:09:18 am »
Heck yes! very sexy
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