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Forum: Engines & Clutches 09-14-2013, 04:12 AM
Replies: 8
Views: 1,106
Posted By modelengineer
It works, my first gokart used a belt tensioner...

It works, my first gokart used a belt tensioner clutch and it was awesome.

Just make sure you tension the side of the belt which is slack under acceleration, otherwise you'll need 50x the spring...
Forum: Photo Gallery & Project Log 08-17-2013, 01:43 AM
Replies: 14
Views: 4,743
Posted By modelengineer
I havn't really done anything on the kart :( I've...

I havn't really done anything on the kart :( I've been working on my MX5. Rest assured though, it will be finished (though maybe not in time for the end of the build off)
Forum: Go Kart Discussion 07-22-2013, 08:22 PM
Replies: 14
Views: 1,393
Posted By modelengineer
I'm using a 1 1/4" solid mild steel axle for my...

I'm using a 1 1/4" solid mild steel axle for my 500cc twin seater bike engine powered kart. I don't foresee any problems.

You can't really compare full size axles to gokarts because the axles in...
Forum: Go Kart Discussion 07-07-2013, 02:00 AM
Replies: 6
Views: 2,249
Posted By modelengineer
There should be no difference in the engines. The...

There should be no difference in the engines. The ATV gearbox might have reverse, but other than that it shouldn't make a difference.
Forum: Go Kart Discussion 06-29-2013, 02:02 AM
Replies: 15
Views: 1,466
Posted By modelengineer
$1000 is plenty, I've got pretty much all the...

$1000 is plenty, I've got pretty much all the parts for my 500cc twin seater for all up $700 AND I've got around $300 of motorbike parts to sell :D
Buy a whole crashed motorbike and part out the...
Forum: Go Kart Discussion 06-24-2013, 02:42 AM
Replies: 13
Views: 1,099
Posted By modelengineer
If you can find a written off motorbike for cheap...

If you can find a written off motorbike for cheap that'd get you more power and a manual gearbox. Depending on how old your son is that might be a better option.

I'd recommend a 250cc if he's old...
Forum: Go Kart Discussion 05-31-2013, 08:17 AM
Replies: 8
Views: 1,105
Posted By modelengineer
It's much easier to make a lever system than a...

It's much easier to make a lever system than a pneumatic/electronic system
Forum: Engines & Clutches 05-13-2013, 02:24 AM
Replies: 14
Views: 1,677
Posted By modelengineer
You might need a jackshaft since the rear...

You might need a jackshaft since the rear sprocket is already close to the ground.
Forum: Go Kart Discussion 05-04-2013, 07:34 AM
Replies: 5
Views: 3,104
Posted By modelengineer
For a cheap solution you could buy one of those...

For a cheap solution you could buy one of those really cheap electronic shift lights they have on ebay all the time and wire the light up to a relay which trips the kill switch. I did this on my...
Forum: Engines & Clutches 05-03-2013, 06:55 PM
Replies: 9
Views: 1,622
Posted By modelengineer
Well it depends on the motor. An industrial 400cc...

Well it depends on the motor. An industrial 400cc engine will make ~13hp whereas a 600cc motorbike engine can make upwards of 100hp. Which 600cc engine were you considering?
Forum: Engines & Clutches 05-03-2013, 06:24 PM
Replies: 9
Views: 1,622
Posted By modelengineer
Basically you'd have to reinforce the frame...

Basically you'd have to reinforce the frame heavily, lengthen the kart, you should add hydraulic front and rear brakes, extend the throttle cable, add a clutch pedal and cable, make up the shifter...
Forum: Go Kart Discussion 05-01-2013, 04:47 PM
Replies: 5
Views: 1,946
Posted By modelengineer
A motorbike engine should be cheaper and would be...

A motorbike engine should be cheaper and would be much better...
Forum: Go Kart Discussion 05-01-2013, 04:43 PM
Replies: 9
Views: 908
Posted By modelengineer
Yes they'll work, but you'll need some sort of...

Yes they'll work, but you'll need some sort of adapter or custom hub to mount the disc to the axle. Alternatively you could use the bike caliper on a kart disc.

The only problem I had was the bike...
Forum: Go Kart Discussion 05-01-2013, 04:41 PM
Replies: 4
Views: 878
Posted By modelengineer
Check contest build logs. 2007 GS500-F. 11,000...

Check contest build logs. 2007 GS500-F. 11,000 rpm of motorbikey goodness :D I hope it drifts using standard kart tyres, they're pretty grippy but the kart will have more weight over the front than...
Forum: Go Kart Discussion 04-30-2013, 10:07 PM
Replies: 4
Views: 878
Posted By modelengineer
I'm building my kart to drift, but instead of PVC...

I'm building my kart to drift, but instead of PVC wheels I've got 45hp and a 6 speed with regular kart tyres :D I'll let you know how it goes when it's done.

Be careful when you 'air up' the new...
Forum: Go Kart Discussion 04-23-2013, 05:43 AM
Replies: 5
Views: 749
Posted By modelengineer
I stand corrected, I remember my lecturer saying...

I stand corrected, I remember my lecturer saying they should only be used for locating but checking my textbook (Shigley Mech. Eng. Design 8th Edition) it seems to confirm what you guys are saying,...
Forum: Go Kart Discussion 04-23-2013, 03:20 AM
Replies: 5
Views: 749
Posted By modelengineer
Yes, what Mckutzy said. Also note a woodruff...

Yes, what Mckutzy said.

Also note a woodruff key is not meant for power transmission, only angular location. A woodruff key should only used where a taper or other method is relied on for power...
Forum: Photo Gallery & Project Log 04-20-2013, 08:07 AM
Replies: 14
Views: 4,743
Posted By modelengineer
Progress has been slow with uni getting in the...

Progress has been slow with uni getting in the way of gokart work but tonight I managed to lathe up the rear axle, all it needs now is keyways :D

35163 35164

Next up is to make the 2 wheel hubs...
Forum: Go Kart Discussion 04-14-2013, 09:38 AM
Replies: 23
Views: 5,354
Posted By modelengineer
If building a simple ladder kart you shouldn't...

If building a simple ladder kart you shouldn't really need plans. Just measure the components you have and draw on some scrap paper.

Anything more complicated and the plans take a lot of effort to...
Forum: Go Kart Discussion 04-09-2013, 05:06 AM
Replies: 27
Views: 3,129
Posted By modelengineer
I would definitely use the bikes original...

I would definitely use the bikes original ignition. In fact the way I wired my bike engine was just to strip the bike wiring harness of all the lights and unnecessary circuits and extend wires where...
Forum: Photo Gallery & Project Log 04-09-2013, 02:32 AM
Replies: 14
Views: 4,743
Posted By modelengineer
OK well we made some good progress today on the...

OK well we made some good progress today on the kart. We made two of the three engine mounts, made the brackets to hold the rear axle bearings, and tacked on the extensions to support the edge of the...
Forum: Photo Gallery & Project Log 04-08-2013, 05:48 PM
Replies: 14
Views: 4,743
Posted By modelengineer
:D thanks. The main rails are 50x25 though and...

:D thanks. The main rails are 50x25 though and very stiff. If I jump up and down on one of the rails right in the middle it moves about 4mm up and down... I think it should be OK :D

Today I have...
Forum: Photo Gallery & Project Log 04-07-2013, 05:53 PM
Replies: 14
Views: 4,743
Posted By modelengineer
:D Thanks Toystory, if I had the time I might put...

:D Thanks Toystory, if I had the time I might put adjustable castor but I want to complete the kart asap. As it is I've set it at 7 degrees KPI and 8 degrees castor.

The chassis seems reasonably...
Forum: Go Kart Discussion 04-06-2013, 06:27 PM
Replies: 54
Views: 8,936
Posted By modelengineer
No, car wheels don't have bearings in them. They...

No, car wheels don't have bearings in them. They are mounted to hubs which have bearings in them.
Forum: Photo Gallery & Project Log 04-05-2013, 01:28 AM
Replies: 14
Views: 4,743
Posted By modelengineer
This afternoon I bought some 50x25x1.6 RHS for...

This afternoon I bought some 50x25x1.6 RHS for the main frame rails. I had some already but no two lengths quite long enough to make the frame, I didn't want to have a weld half way along the frame...
Showing results 1 to 25 of 500

 

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