karasaki 500cc Kart Project

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T.E.D. Jordan

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Hi all, new here but I decided I wanted somewhere decent to log my project on, and this seems to be a great place to share both my project, and ideas.

The project is termed Karasaki for the basic reason of its a Kart, with a kawasaki engine :idea2: lol.

To start with, this project is being built by me and my brother (Mostly me as he's a lazy SOB), and its our third 'road' kart.

Started with a phone call from our go-to guy who we've bought over 30 bikes from over the past couple of years telling us he had a crash damaged 2002 kawasaki 500 bike cheap, which was when my brother decided he'd let me know incase I was interested and I suggested getting it for the kart. Here it is after we got it back:



Everything we needed was on the bike, bar the starter, this and all the other bits are why we got the bike cheap (£80)

Engine removed along with everything else we'd need:



Its comical looking at this kart in this photo, because the engine is actually as big as the seat area! Dug the kart out (A few friends and I bought a few karts together years ago and this is a spare chassis I had from like, 7 years ago!):



Stripped of non-essentials and put on a spare work table:





To gain the length for the new engine, the kart obviously had to be lengthened. a massive loss of rigidity is lost in the process especially with a heavy engine like the Kawasaki 500 and a passenger slung between the supports (wheels), so to retain some rigidity in the add-on, I staggered my cuts in the three existing bars so as not to create a 'single plane' where the kart was its most susceptible to fatigue, then offered matching cut bar from stock we have:



Its late in the UK, so I'm off to bed, more photos tomorrow if theres an interest!

Jordan
 
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killawatt

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i cannot wait to see this thing in action!!!! please hurry and finish it these are the kind of projects you stay up thinking about
 

redsox985

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I don't know if you've seen them but someone makes marshmallows that are jumbo sized like you can't fit one in your mouth whole. Well they fit nicely in the barrel (1.5") of a potato gun. It's so much fun because it doesn't hurt too bad to have a war with them, much unlike potatoes. Just my random 2¢.
 

r97

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gotta try that! lol, my tater cannon is the explosive type so the marsh mellow will come out ready for a smore!
 

redsox985

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Hahaha it's such a quick flash of great though. Mine are all combustion and all I've gotten is some residue that's easily removed.
 

T.E.D. Jordan

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Thanks guys - not so sure about the potato cannon that lauches large flumps, but I wont discard it :devil2:

Next stage in the process was turning up 6No of these, they're an interference fit between the existing CDS kart tubing, and my lengthening bars:



Here's two of the lengthening bars cut to size (3 in total each 600mm!!) with plug-weld holes at 90degrees to each other, with 15mm and 25mm back-mark from the tubing ends respectively. They're also drilled at a 45degree offset to the seam in the tube wall. I didn't go with CDS as I'll already be spending too much money on this project and at a later date you'll see why I don't require them:



Pic of 4No of the bosses:



and a pic to show 4 of the bosses pressed and plug welded into the lengthening bars:



This picture is to show the staggered cut over the back axle area, with a de-burred internal face and weld-preped outer. Excuse the poor lighting in some of these pics btw, as one of my tubes had blown:



I then drilled the holes in the CDS for the bung pressings (note - PITA, had to use the drill-press in the workshop round the corner): and pressed the 'bunged' extension bars in:



I pushed two of my work benches together and roughly levelled them for now, slid some wood sheets over and laid the frame on top at its new length. In this picture the tubes have been pressed into the back axle, and I've just mocked it up to check some lengths.



I then re-attached the rear axle, wheeled it round to use the bigger welder in another workshop, pressed both ends together (what a task :worried2:) clamped the frame to an old surface bed, measured from the back axle centreline to the front axle hub carriers on both sides (It was perfect as the tubes being pressed into each other kept everything Exactly parallel) and plug welded it all together:



As I mentioned earlier I have a lazy partner in this build - my brother :thumbsup: I enlisted him to strip the bike of its ancillaries, dry-store them and give the engine an initial clean, so we wheeled it round to the closest pressure washer, gunk'd the engine, and agitated it as we blasted 28k of English road mank:


^Ingenious use of a scraper in the exhaust manifold holes to stop it spinning!

The engine came up OK for now but it'll get another wash before assembly:





Here's one last pic to tide you over, the engine short of carbs/direct loom etc sat over the frame again. Off to the CNC mill at www.totalengineeringdevelopments.co.uk to make a start on some brackets! More pics soon if wanted!

Jordan
 

T.E.D. Jordan

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Thanks, yeh I couldnt do alot of my projects without the use of that engine crane. Its a bit overkill for most of my jobs :p designed to lift tractor/combine engines lol

Had a problem at total engineering developments today. The power went out halfway through finishing the last piece of the rear engine bracket on the cnc mill, So martin is going to finish and drop it off to me tomorrow - top bloke, top service and top work!

Jordan
 

T.E.D. Jordan

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Did'nt get as much done as I had hoped yesterday, power was still off at the machine shop but heres a couple photos of a small piece of the rear bracket on the mill from before the power went out:





Rest of the day I got on with other stuff so no progress really. got the starter motor on the engine (bought a S/H one as it didnt come with one), so heres a photo of a couple of other bits - rose joints for the rear engine mounts, M12x1.75 RH and LH:



Micron carbon back-box:



little mockup of the kart wheels, they're a spare set of rears from an older racing kart I used to have, They're really too wide so I'll probably have to buy something else, but they look mean :devil2::



This is the ground clearance I'm after, about 30mm/1 1/4", the tracks/roads I'll be using it on shouldnt be a problem even with a litle gravel at this height I'd hope:



Jordan
 

anderkart

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This is the ground clearance I'm after, about 30mm/1 1/4", the tracks/roads I'll be using it on shouldnt be a problem even with a litle gravel at this height I'd hope:

Lookin good man, but dont forget those rear tires you've got mocked up front there are probably a bit taller than most standard sized, front race slicks would be.
 

T.E.D. Jordan

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Thanks fella. You're right about that, but I'm going to try and find some 11" tyre'd wheels for the front albeit slimmer! puts the front at a decent height for ground clearance and tyres should be easier to locate

Jordan
 

T.E.D. Jordan

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Got the rear engine bracket finished. Modelled and exported it in AutoCad then it was CNC machined:



bare metal form after all the pieces were pressed and tigged together:



Quick check for fitment:



Etch primed to hold off the rust for now:



Fitted after it dried, then I bolted the two RH thread rose joints to the bracket, happy with the fitment:



Hopefully I'll have the front solid mount engine brackets soon.

Jordan
 

Lynx_Genisys

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Wow, thats some pretty high quality work there!

Its gona be interesting to see this thing rip around...

We will get to see it right.. ? some videos... PLEASE! PLEASE PLEASE!!!!

:D

Keep up the great work!
 
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