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1980 Honda CB750F Cafe Build

This is a discussion on 1980 Honda CB750F Cafe Build within the Project Builds forums, part of the Caferacer.net Forums category; Your exhaust will likely by too short to make best power, but at this point it looks more like a concession to aesthetics, which is ...

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  1. #41
    jcw
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    Your exhaust will likely by too short to make best power, but at this point it looks more like a concession to aesthetics, which is fine...

    There are some engine calculators here to help you determine best length, diameter headers.
    Wallace Racing - Automotive Calculators
    Primary Header Tube Length and Diameter Calculator

  2. #42
    jcw
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    Here is a KZ1000 frame from 1976

    Attachment 96193

    Here's one made for the (high mileage, heavy duty) police model almost 20 years later


  3. #43
    Senior Member woodsman's Avatar
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    Taking a look at the racing history would be very helpful with getting to where it seems you want too go. If you want to get the best from the bike and have a full fairing. then you need to figure out how to put a fairing on this.
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  5. #44
    Senior Member XB33BSA's Avatar
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    we modified this kz1000 frame quite a bit lol everything from the engine cradle back is cromoly
    it was the fastest privateer superbike in camel pro that year
    the late john woo on his way to spanking half a dozen factory riders and bikes garnering 4th at sears point 1982 although disqualified for being 3 lbs under weight post race


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  6. #45
    Senior Member XB33BSA's Avatar
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    crosbies ride
    my opinion is modern wide 17'' wheels do not belong at all on a super replica .period
    neither do upsidowners
    fuck all that as soon as you do that it no longer is a superbike
    fact is if you are on the street you dont need it and it wont give you as thrilling a ride as you will have with period correct rubber size
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  7. #46
    Senior Member XB33BSA's Avatar
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    Quote Originally Posted by woodsman View Post
    Taking a look at the racing history would be very helpful with getting to where it seems you want too go. If you want to get the best from the bike and have a full fairing. then you need to figure out how to put a fairing on this.
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    bah that thing is too far ahead to have the 19 onnit

  8. #47
    Senior Member woodsman's Avatar
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    Quote Originally Posted by XB33BSA View Post
    bah that thing is too far ahead to have the 19 onnit
    Take the 19 off it....now what's wrong.

  9. #48
    Senior Member XB33BSA's Avatar
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    Quote Originally Posted by woodsman View Post
    Take the 19 off it....now what's wrong.
    you get my drift nothing except the owner has an overly short front fork travel fetish like all the rest of the drones
    c'mon less than 3'' of up travel without a rider is not good
    and by having the front so low he loses over 2'' of ride height which will be a bitch the engine side xases will hit the floor
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  10. #49
    jcw
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    CaTacL1sm likes this.

  11. #50
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    So, ordered the Dynoman kits (pistons, rods, camshafts, etc. CR carb... HD stud kit and Ohlin rear shocks... to start and save on shipping). question for the group; is it worth it to swap out the cam chains and tensioners? the ones in there are in great shape and i can't find any opinions from other build projects one way or the other. Second question, which i think i know, but do i need to balance the crankshaft? thanks.

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