What to make, project time.

[The Artist]

I have to build something at college for an engineering project.

What should I do that is:

Cheap
Fun
Engineeringy to make.

I have though of go kart but I would need to find all the suspension and steering stuff if I want to make it usable.

It will be powered by a gsf 400 engine provided by a member of bcf but I don't have the engine just yet.

[Scooty]

Watch the next episode of Scraphead Challenge that is on TV. Make that
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Current Bike: 2018 Honda CRF250L
Ex-Bikes: 2002 Honda CG125, 1998 Honda VFR800, 2011 Honda CBR600F, 2013 Triumph Sprint GT SE, 2015 Kawasaki ZX10R

[deleted111]

A go kart would in no way be as hard as you think. I know people who have built them over a weekend and they've been pretty cheap and 'whaddafuck ' but good fun and quite 'engineery'.

You could modify an old ride on lawnmower, remove the deck etc, add the engine, it's doable, in theory, although I've never done it myself.

just a quick Instructables search on Go Carts

Rack and pinnion steering wouldn't be too hard to muster up I wouldn't have thought, and there's no massive need for suspension. Although it helps I suppose. Maybe stick a couple of mountain bike rear susps on the rear wheels or something? Or a motorbike monoshock under the seat?

Don't necessarily even have to stick with the preconceived mental image of a go cart.

Engine and wheels, fair play, but the rest you can smoke some doob and draw some whacky yet simplistic design to house it all.

Just have a good sit down with a pen and paper and see what you can come up with.

Maybe, just maybe, a trike?!

Engine driving rear two wheels from a go cart or mini quad or whatever, with motorbike front end, making steering easier and much more simplistic than a DIY rack and pillion?

Cheers,

Steve.

[mad4it028]

400cc mini moto
might even be able to help you out with running gear/ compleat moto
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always looking to buy bikes crashed ,unfinished projects,none runners pm me
currently riding kawasaki z1000 only bike ive ever loved

[The Artist]

Out of all those I probably like the idea of bike front end. Trike would be win.

I am thinking pushbike front end to keep weight right down.

Then a proper seat ontop of the engine which drive a fixed rear axle for some epic drifting action. I want small tyres so I can wheel spin everywhere.

What to make the back end out of?

How to attach front end of push bike to said frame? I imagine welding will be hard as the tubes of push bike frames are usually an odd shape.

[mad4it028]

ide be worried a push bike front wheel would fold
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always looking to buy bikes crashed ,unfinished projects,none runners pm me
currently riding kawasaki z1000 only bike ive ever loved

[L4Isoside]

Id like to make a go kart but have no where to use it!

[DrDonnyBrago]

If you use a bike front end it will have disc brakes attached too, a heavy 400cc kart will need decent brakes .

[deleted111]

Cut head tube out of bike frame or motorbike frame, and weld it on to the 'soon-to-be' frame of the trike.

as is demonstrated by this guys electric trike build: https://www.instructables.com/id/600W-Electric-Trike/#step1

Weld a sprocket on to the rear axle, which would be different to the above build,

this would allow the engine to drive both rear wheels and would be a bit of a drift machine if it weighs bugger all and has what, 400cc on there? D:

Cheers,
Steve

[Chalky.]

Hovercraft? That would be amazing.

A limo motorbike?

Put it in a 3 wheeler?

[The Artist]

[The Artist]

Some good ideas coming.

I am still on the trike idea though. It can't be massive, technically it can't be bigger than a small welding booth but that's not 100% true.

That instrucatables thing is helpful, good guide that guy made.


I am basically going to mimic what he did but beef it up a bit. e.g. bigger seat, bigger wheels and 400cc 60hp engine.

Also I can easily weld a plate onto the frame to bolt a brake calliper to and a disc off something random for brakes.

Only thing I am struggling with is the drive chain. How do I get the drive from the engine to the wheels. Yes a chain and sprockets but how. I will need an axle which both wheels are bolted to and then support the rest of the frame off bearing blocks on the axle with enough room in the middle for a sprocket to be welded on. That is the most complex part of it.

[deleted111]

Just a quick bodged draw up in paint.

Something like so??

Frame could be welded box section, easy as pie.

[The Artist]

[deleted111]

take a look at a go cart axle.

https://www.zigwire.com/projects/gokart/pics/gokart2_large.jpg

Weld a support on each side for the axle to sit inside of but still spin freely. Bolt down on top of the axle with a piece similar to the chain tensioning lark on a motorbike? Then Weld sprocket inline with the engine, and voila.

I know what I'm thinking but can't quite word it

EDIT: Here's the above project if it helps https://www.zigwire.com/projects/gokart/gokart.php

[The Artist]

my attempt

[Chalky.]

https://i116.photobucket.com/albums/o22/fv53wkr/Untitled-2.png

Win.

[The Artist]

thanks chalky for the lolz

[Howling TerrorOutOfOffice]

A GSF400.
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[Slacker24seve...]

[N cee thirty]

gsf400 powered wheelchair for nigel
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

Jewlio Iglesias wrote: I actually did vote BNP once

[deleted111]

Mossy it's just occured to me.

Don't cut the bike at the headtube, cut it below the petrol tank so you can allow some space to affix a bike tank relatively easily, on to mounting points that will already be there

Only problem I can think of regarding the above, is the length of the fuel line you'd probably need. Shouldn't be too much of an issue however.

[truslack]

I have a CB650 Frame, forks and yokes that you could have for £20 if you take them from my garden - would be useful for the headstock
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Current: Suzuki RG 125 Gamma, Honda H100, Triumph Tiger 800XC, Suzuki SV650 (minitwin)

[Carvel]

Moped + crazy engine (for example a gsf400 motor) = win (and more than likely death)



https://i195.photobucket.com/albums/z266/fs1eweb/rd_2010_024.jpg
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2002 Aprilia RSV1000R, Cbr600Fs, Mk1 B12, Vfr400 NC30...

Matt B: I can deal with crushed nuts to beat Ollie.

[deleted111]

that thing looks crazy!!!

Makes me wanna stick as bigger engine as possible into the midi moto frame in my garage.