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Type: Posts; User: 3DRoboGuy

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    50cc Scooter conversion - Road Tests

    Wow ! :O
    So this is an EV grin ! I'm still picking the flies out of my teeth (yeuch) !

    I'm not quite sure where to start. I realise this project was only for a 50cc scooter and by many standards...
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    50cc Scooter conversion - Gearing : Attempt 2

    Having experienced the results of my NOT having done some math (I guess, at the outset, I had just 'hoped' all would be well because it was the simplest solution - not to mention that the conversion...
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    That looks AWESOME ! Once I finish my current...

    That looks AWESOME !
    Once I finish my current Scoot project (on the forum, nearing completion - hopefully later today / tomorrow) I want to convert a Kawasaki VN650 Vulcan but the donor price is...
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    50cc Scooter conversion - Clutch and Motor 'Stutter'

    After 'playing about' with the Volt / Amp meter it was time to re-visit the motor 'stutter' and the un-modified clutch.

    I grabbed my hand-held tacho (nothing special here, 15-oddEuro on Amazon),...
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    50cc Scooter conversion - Test V/A Meter

    At the outset I decided it would be really handy to be able to see battery voltage and motor / controller current primarily for test purposes but also whilst riding. However, because I hadn't found a...
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    50cc Scooter conversion - Motor/Controller final connections

    On the home straight now !

    Just a bunch of wires (all with plugs / sockets on) to connect to the scoot and we're pretty much ready for a dry test !

    [1] Throttle / Twistgrip
    It was day 2 or 3,...
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    Hi Supercub50, Good luck with the project. Like...

    Hi Supercub50,
    Good luck with the project.
    Like Flo says, it'll be interesting to see how you shoehorn everything into the available space (doesn't look like you have a lot of it)
    Have you...
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    50cc Scooter conversion - Fuel filler / Charge port

    This was some fun ! I took some measurements and started designing (SketchUp, again) a replacement fuel filler neck & cap some weeks ago.

    First I thought I'd use the same Anderson connector as was...
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    50cc Scooter conversion - Controller installation

    This week I've been busy with the last major part of the conversion: siting the controller and associated components.
    The original ICE kit has been removed.
    The original wiring has been serviced /...
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    50cc Scooter conversion - Batteries (2 x 72V@13AHr : 1Kw)

    With most of the 'boring' stuff out of the way I started off trying to work out where to site the batteries I would be making.
    Once the site was chosen I'd have a better idea as to final available /...
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    50cc Scooter conversion - Crankcase blanks

    These are to protect the internals form dirt, grit and water ingress as far as practically possible. In the case of my scoot, I have various cover / blank plates to design and fit :
    [1] Oil pump...
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    50cc Scooter conversion - Swingarm / transmission cover

    I thought that before I start the main / primary EV electrics I should 'tidy up' a little bit first.
    To be fair, at this precise time, given that I have serious doubts as to the effectiveness (and,...
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    50cc Scooter conversion - Electrics tidy-up

    Next came the original / as-fitted electrics and their sorting out and tidying up.
    Once again, like the strip down, this was pretty straight forward. Unfortunately, the Chinese used a strip, twist,...
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    50cc Scooter conversion - Gearing

    An update re: my (rather hopeful?) gearing...

    I'm not sure this will work (given the gearing) but I have to start someplace !
    I figure that it will be easier if I can the existing rear variator /...
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    50cc Scooter conversion - Motor

    Time for an update ! I've made some progress with the motor :
    The motor controller arrived !! Yaaay !!!
    8238
    Initially, I removed the cylinder head. Once that was done, the swingarm was next. I...
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    Hi, I'm definitely learning but the 3K3 BLDC I...

    Hi,
    I'm definitely learning but the 3K3 BLDC I have is 'double D' / T8F. I'll post some images later today (if the site allows me)
    VERY valid point re: side-loading - and the very reason I could...
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    Hi Electro Flyers ! Great to see your interest !...

    Hi Electro Flyers ! Great to see your interest ! Appreciated.
    Apologies - T8F : is an 8mm chain sprocket arrangement - commonly used with scooters, 'pocket' bikes and choppers. Basically, a T8F...
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    Hi, An update : This is the scoot I purchased...

    Hi,
    An update :
    This is the scoot I purchased for 200Euro. Great nick really except, like I say, it has an intermittent spark issue and the ubiquitous oil leak
    8225

    ...and this is it once...
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    Hi Stevo, That sounds like the sort of...

    Hi Stevo,
    That sounds like the sort of functionality I was looking for. If possible I'd like a charger that I can 'limit' to cut-off at the 80% full point (or there abouts). I'm probably being...
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    Hi furyphoto and flo ! Thanks for the help /...

    Hi furyphoto and flo !
    Thanks for the help / encouragement ! Appreciated.
    Bad nomenclature when I said Li-Po. I hadn't really thought about my typing. Should have said Li-ion, in fact the batteries...
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    50cc Scooter conversion

    Hi,
    First time on the forum, so introductions first :
    my name's Ian.
    I'm an electrical/electronic engineer to trade and am reasonably handy.
    I now live in France where nearly all the 14+...
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