82 GPZ750 Ebay $1900. Waited to long
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82 GPZ750 Ebay $1900. Waited to long

This is a discussion on 82 GPZ750 Ebay $1900. Waited to long within the Craigslist/Ebay forums, part of the Caferacer.net Forums category; I always wanted an 82. I have seen folks with good success with tuning on these. Every time I come across one they are in ...

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Thread: 82 GPZ750 Ebay $1900. Waited to long

  1. #1
    Senior Member knappyfeet's Avatar
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    82 GPZ750 Ebay $1900. Waited to long

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    I always wanted an 82. I have seen folks with good success with tuning on these. Every time I come across one they are in decent original condition. I personally think its a mortal sin to take a good original example of a fine machine and take a saw, hammer and paint stripper to it. That's just my opinion. It is also my opinion that putting that type of seat setup on an early 80s bike is like installing the rear fins from a 1961 Plymouth Fury on an 82 Trans Am. But to each their own and no disrespect to ones build creations and dreams.

    I would have like to have the chance to own this bike but like with most of my life........always a day late and a dollar short. Good luck to the new owner. The more I look at the photo the more I get used to the seat.
    Geeto67 likes this.

  2. #2
    Senior Member jalsteve's Avatar
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    Quote Originally Posted by knappyfeet View Post
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    I always wanted an 82. I have seen folks with good success with tuning on these. Every time I come across one they are in decent original condition. I personally think its a mortal sin to take a good original example of a fine machine and take a saw, hammer and paint stripper to it. That's just my opinion. It is also my opinion that putting that type of seat setup on an early 80s bike is like installing the rear fins from a 1961 Plymouth Fury on an 82 Trans Am. But to each their own and no disrespect to ones build creations and dreams.

    I would have like to have the chance to own this bike but like with most of my life........always a day late and a dollar short. Good luck to the new owner. The more I look at the photo the more I get used to the seat.
    Name:  282236_471370042892518_2083993654_n HARRIS F1 KZ750 1984.jpg
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    Yep that motor can really sing if treated well. The motor pictured is a 1983 GPZ750 and complete bike pictured competed in the World F1 TT championship in 1984 finished 8th overall (highest position for a privateer bike). World F1 TT was a 1000cc till 1884 then became 750cc and was to become World Superbike in 1988.

    The engine made about 100hp rear wheel HP (best figures were 104hp). Engine spec had the crank much lightened, standard rods shot peened and polished, Omega pistons which gave a true 750cc and 12.5:1 compression, cams were reprofiled originals increasing lift and duration, valves were special oversize, with Moriwaki works springs. Gearbox was a full works Moriwaki close, carbs are also works Moriwaki Keihin CR 33.5mm in magnesium with nice big ports to breath into. Ignition is Mistral (John Carpenter) distributor electronic running on via a Lucas perm mag alternator.

    A nice thing. Engines are bullet proof. Engine was stripped of its paint when restored!
    Last edited by jalsteve; 02-01-2015 at 01:58 AM.
    Geeto67 and 44dwarf like this.
    Lite the blue touch paper and stand well back!

  3. #3
    Senior Member jalsteve's Avatar
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    Should have mentioned that we are now restoring another F1TT bike which as the sister bike to this. The bike above was ridden by Asa Moyce, the sister bike was ridden by Jim Wells and pictured below are both bikes at Villa Real Portugal in July 84, just a few weeks later Jim had a near fatal which ended his career.

    Both bikes are Harris F1 framed, forks are Suzuki Rg500 mk9, Dymag wheels 16 front and 18 rear, Brembo Magnesium brakes. And just over 320lbs.

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    Lite the blue touch paper and stand well back!

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  5. #4
    Senior Member grandpaul's Avatar
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    Quote Originally Posted by jalsteve View Post
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    I can't quite figure out what's going on with the people laying in the grass... I suppose "fun" isn't always comfy.

    (I was referring to the seat in the first picture)
    GrandPaul
    Author, \"Old Bikes\"

  6. #5
    Senior Member 44dwarf's Avatar
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    That's a bike on my bucket list. But the café seats got to go. It just doesn't fit the rest of the bike.

    f1TT bike is awesome
    \"Smok\'in the competition NOT Tobacco\"
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  7. #6
    Senior Member knappyfeet's Avatar
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    Quote Originally Posted by jalsteve View Post
    Name:  282236_471370042892518_2083993654_n HARRIS F1 KZ750 1984.jpg
Views: 1055
Size:  119.5 KBName:  DSCF0206 (3).jpg
Views: 1732
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    Yep that motor can really sing if treated well. The motor pictured is a 1983 GPZ750 and complete bike pictured competed in the World F1 TT championship in 1984 finished 8th overall (highest position for a privateer bike). World F1 TT was a 1000cc till 1884 then became 750cc and was to become World Superbike in 1988.

    The engine made about 100hp rear wheel HP (best figures were 104hp). Engine spec had the crank much lightened, standard rods shot peened and polished, Omega pistons which gave a true 750cc and 12.5:1 compression, cams were reprofiled originals increasing lift and duration, valves were special oversize, with Moriwaki works springs. Gearbox was a full works Moriwaki close, carbs are also works Moriwaki Keihin CR 33.5mm in magnesium with nice big ports to breath into. Ignition is Mistral (John Carpenter) distributor electronic running on via a Lucas perm mag alternator.

    A nice thing. Engines are bullet proof. Engine was stripped of its paint when restored!
    BEAUTIFUL bike boss. Now I really am energized to find the right machine to fulfill my vision.

  8. #7
    Senior Member jalsteve's Avatar
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    Yep it is, light and very small with a seat height of just 27inches. The engine is pitched a way forward which helps to really push the front end.

    Don't overlook the z650 they have good engines too. Fit with the aircooled GPZ750 cams and they really start to show their potential. Oh and don't forget those big early GPZ1100's they are brutal with a little work.

    Photo's of another Harris we built a few years ago, Its a Mk1 Magnum with full endurance spec Z1000mk2 engine (rear wheel 122hp) and built in period style C1978 which was when the frame was made. A really competent handling bike, solid and stable, quick to turn too. When I was 17 I remember a local guy had Magnum 1 with a Z900 in it, I lusted after that bike for many years. In 85 I bought a Honda VF1000R and had quite a few Sunday runs with that magnum in tow, he hung onto the back of the VF everywhere and match me everywhere on the twisty bits. Although not in the current "café racer" style the Magnum really was a café racer of the 80's and a proper superbike.

    Name:  Harris Magnum 1 Kawasaki 1.jpg
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    Last edited by jalsteve; 02-01-2015 at 05:08 PM.
    Lite the blue touch paper and stand well back!

  9. #8
    Senior Member grandpaul's Avatar
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    There's some high quality bikes popping in here...
    GrandPaul
    Author, \"Old Bikes\"

  10. #9
    Senior Member Geeto67's Avatar
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    can't add much to this thread but here's a GPZ700 (us only model) that someone dressed up as a 1 of none ELR 750/700. Saw this bike at Rice paddy a couple months back and thought it was cool. This is pretty much how I would do a gpz 750 since I hate red.





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  11. #10
    Senior Member MK3Brent's Avatar
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    Really really love the GPZ bikes. I hope to own an 1100 some day. I know what you're talking about OP.

    '82 GS750E, '99 ZRX-1100
    "Tossing a few cherries on the manure wagon doesn't make it the dessert cart."

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