1972 Z50 budget build

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1972 Z50 budget build

This is a discussion on 1972 Z50 budget build within the Z50, CT70 and JDM Monkeybikes forums, part of the General Talk category; Been reading the forums nonstop since I picked up this mini yesterday. The owner told me it was a 74, but it looks like a ...

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  1. #1
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    1972 Z50 budget "street legal" build

    Been reading the forums nonstop since I picked up this mini yesterday. The owner told me it was a 74, but it looks like a 72. Serial begins and ends with a "1"

    Anyway she runs! But as you can see she is in rough shape. Plan is to strip her down, paint, polish, and replace things that need to be replaced and hopefully make her street legal in the process. Not to worried about keeping it original. Would like to focus on making it look nice for the least amount of money possible... Is what we all say right? =)

    So far it looks like I need the following. Please let me know if the links i posted are the wrong parts or there is better deals to be had!

    -Exhaust
    Honda Z50 Z50R Mini Trail Monkey Bike Muffler Exhaust Pipe | eBay
    -front fender
    Chrome Front Fender Honda Z50 CT70 Minitrail 50 Trail 70 Mini Bike Chopper New | eBay
    -Seat/Cover
    Honda Mini Trail Z50 Z50A 1972 1978 Pleated Custom Made Motorcycle Seat Cover | eBay
    -new grips and run/stop switch
    No idea where to get this?!
    -Kickstand
    -Kickstarter (current one is welded on)
    -New decals!

    Probably also replace the sprockets and chain while I have her apart. Any suggestions on teeth for the front and rear? I am 6' 230

    I will get some better pics after I wash her!

    Click image for larger version. 

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    Last edited by Quinc; 09-10-2015 at 11:17 PM.

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    Any tips on what length kick stand to get? Noticed there are a few different options.

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    Anyone happen to have any experience with this 88cc big bore kit?
    88cc Big Bore Race Kit TBW0928 Honda Z50 XR50 CRF50 | eBay


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    That particular kit you have shown is for the long-rod engines from '88-'15 Z, XR, and CRF50 models. Your '72 is a short-rod engine and requires a different piston configuration.
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    The kit you want for the '72 can be found here
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  7. #6
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    Quote Originally Posted by dirtbkr188 View Post
    The kit you want for the '72 can be found here
    Are these ok to bolt on and go or should I also upgrade the crankshaft and a larger carb?

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    They are bolt on and go, you'll probably want to add a bigger carb later on. Going with a stroker crank necessitates a race head, bigger carb, and an aftermarket exhaust for optimal performance.
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    Your going to need a HD oil pump and drill the oil hole.
    tmas

    TB High Volume Oil Pump CT70 Z50 ATC70 TRX70 SL/XL70 Vintage - TBW0225-6V - Z50 K0-78 - TB Parts - TBolt USA, LLC

    - Head gasket kit We recommend purchasing a high volume oil pump kit (available in this section).

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    Talked to the dmv today. Looks like I need to fill out some forms and bring the bike down in its street legal configuration. Also said I need to add blinkers. Any tips on wiring in blinkers or if there is a wiring harness I can buy that is already setup for blinkers?

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    I'm not saying this can't be done, but what you have in mind is very ambitious. Sourcing parts to do it will be challenging to say the least, and then whether California will give you a tag may still be in question.

    This bike was never street legal in the USA. I think your best hope is to find a kit and adapt it to the bike. Your biggest issue is that most every such kit is going to be for a 12V CDI engine (which yours isn't), so you are going to have to upgrade the engine electrics (or find a new engine) to go with the rest of the stuff you need. Not going to be cheap. Break out your credit card and start shopping. These things will be what you need to start. These may not be exactly the parts you need (I think the speedo gear is for 10 inch wheels, not 8 inch), so look around till you get all you need. Best of luck.

    Speedo Gear
    Speedo
    Blinkers
    Headlight
    Harness
    GM-MOTO : Z50J Tail Light Unit [mky-00076]



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    One more thing. You may be able to source some of the parts more cheaply from a domestic source. Try Hooperimports.com They have some similar stuff and you may save a few bucks.
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    I think you are right. I will rig it up cheaply as possible and take it down to see if I can get it registered.

    Battery powered gps speedo, or maybe a bracket to hold my cellphone to the handlebars. =)

    Or CHP sells the headlight with speedo built in?
    I should be able to find some 6v blinkers or maybe a tiny 12v lithium battery, led blinkers and a handlebar switch

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    Quinc, where are you in nor cal? I have an entire 6volt panda that is in a box that I would sell you... you could use whatever you want to get your bike set up for inspection pretty easily. Btw, if you didn't know.. pandas are z50 clones and everything is a direct bolt on.
    Last edited by hokoman; 09-11-2015 at 10:32 PM.
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    PM sent!

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    Finally road the z50 around the block a few times! It is a blast! Deff going to make a great wheelie bike. Ran great too once i figured out where to put the choke lever, well until the throttle stuck open anyway. =)
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