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Off road gokart project.

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Off road gokart project.

Postby JamesGill » Thu Jun 09, 2016 7:44 am

Few years back a mate showed up to a camping weekend with this. A ratty old Demon X8 (i think?).
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It was rough as hell on the dirt, understeered like a pig and had a carby FULL of crap. None the less it was bulk fun! A week after the camping trip was over I scored it off him for $300. Some nagging needed. lol
First thing I did was move the rear axle back behind the motor so the front wheels would hook up. The thing would just drive you into a tree soon as look at you. Change to 13inch rear wheels and wheel barrow wheels on the front. Clean the fuel/mud out of the carby next. The fuel tank was so full of rust and sh!t it went to the bin. Truly amazing it ran at all.
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The cb125 motor was a blast but its 6hp was soon making me dream of bigger things. Enter the cheap ass 420cc 16hp Chonda a CPR clutch and front hubs!
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To small still bub try next year.
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When CPR released belt torque converters I was all over it like a fat kid on a cupcake!
Top speed is about 50kph and wheel spin/drifto fun is easy at any speed. It does kills the torque converter belt if you smash it to long though. Not that I would drive like that? :D



As much as I loved driving the old clunker it was never really going to suit off road work.


I needed a new plan....................
JamesGill
 
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Joined: Tue Jun 16, 2015 7:21 am

Re: Off road gokart project.

Postby JamesGill » Thu Jun 09, 2016 7:47 am

So with the fun I have had in mind when this came up for sale I was somewhat excited to shell out the coin.
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https://www.youtube.com/watch?v=Zmlrk0iQtr0
118hp 1992 GSXR 750cc motor in a gokart. :think:
At first I was thinking of doing a clone build of the last kart but the lack of suspension and limited safe roll cage options made me soon scrap that plan.
So with a head full of sketchy plans an old seat and a few bits of wood I started. I don't have a pipe bender and coin is short so I did what I could to work out a plan.
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Once I had a basic size and shape in my head I figured the rest would come to me as I went (with the help of some dowel). Hehe
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So that where things are at so far. A lot of work left so I will update as I can. It was a bit of a big leap for my first tube frame build I know so don't be to hash but advice is very welcome.
JamesGill
 
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Joined: Tue Jun 16, 2015 7:21 am

Re: Off road gokart project.

Postby cutpriceracing » Fri Jul 01, 2016 1:40 am

Thanks for posting the awesome build thread James! Awesome work!
cutpriceracing
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Re: Off road gokart project.

Postby JamesGill » Mon Sep 05, 2016 1:44 am

Over the last few months I've slowly been pulling together parts as money came to hand. It's been slow going but I'm starting to pull things together.
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The front end is still a work in progress but it's starting to look like it may be a goer. Bump steer ended the first gokart steering design plan and the front arms needed to be
shortened as it was to wide to fit on my car trailer. I also gave rear braking the ass for front and rear disk. The cool thing is the rear brake caliper has both a hydraulic and cable option.
Thus cable hand brake FTW! :)
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The steering shaft is a mix of Kingchrome socket parts and the old gokart shaft welded together to make a cheap strong uni so the steering wheel is on the right angle. The rack setup has ment that bump steer will not be a problem and should give good steering control.
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The shocks are height, spring pre load and gas adjustable. At a later date if needed I can look for something more advanced but for now they should be fine.
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Till next update. :)
JamesGill
 
Posts: 4
Joined: Tue Jun 16, 2015 7:21 am

Re: Off road gokart project.

Postby cutpriceracing » Tue Oct 18, 2016 10:28 pm

Great work James! That's looking awesome!
-Paul
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