Starting the Frame

[EastCoast]

So .100" would be 2.539999999997257mm (2.5mm)

ok thanks now I need to find some seats to figure out how wide I need to make the frame at the seating area.

 

[EastCoast]

I know where I can get a few engines, even an old ski-doo engine and a bike engine. If the ski doo engine works I think I might use it some how.

 

[EastCoast]

Anyone have a copy of these plans? http://www.spidercarts.com/granddaddy.html

 

[Doc Sprocket]

Purchase them.

 

[EastCoast]

got a free motor today. well I got 2 free. One was a Honda pump 3.5hp

I took the pump off and it ran good. The pump was full rust and junk looked like a mouse was trying to build a home.

 

[EastCoast]

The other motor I don't know anything about it I was told it was off a ski-doo, I think it might be 2 stroke. Anyone know anything about this and or how to get it running?

 

[EastCoast]

Will the honda work ok for a kart motor? What do I need to do to it to get it ready for the kart?

 

[lucasszy]

Looks like we're in the same boat.

Im making a kart with my 14 year old. The plan is for him to be able to take his 5 year old brother on it once in a while.

After digging around the dimensions that worked for me are 30 inches wide by 60 inches long.

With these dimensions, you should be able to squeeze two medium sized kart seats into the frame, then if necessary, build up a small surround for the left and right sides. I've already built the frame from 1/2 inch tubing (using a type of box design.

Check my own build thread to get an idea of where im going with it.

http://www.diygokarts.com/vb/showthread.php?t=10798

Cheers

 

[EastCoast]

Looks like we're in the same boat.

Im making a kart with my 14 year old. The plan is for him to be able to take his 5 year old brother on it once in a while.

After digging around the dimensions that worked for me are 30 inches wide by 60 inches long.

With these dimensions, you should be able to squeeze two medium sized kart seats into the frame, then if necessary, build up a small surround for the left and right sides. I've already built the frame from 1/2 inch tubing (using a type of box design.

Check my own build thread to get an idea of where im going with it.

http://www.diygokarts.com/vb/showthread.php?t=10798

Cheers

Looks good thanks for the info.

 

[r_chez_08]

The honda should be ok for a kart staying on road on the flat, geared for 20mph or so, i would say.
I love how honda used to have such a range of similar cc gx engines:
Gx100
Gx110
Gx120
Gx140
Gx160
And now they only have
Gx100
Gx140
Gx160 etc.
I would use the other engine if you can get it going. It also looks like it has a torque converter, if you could find the driven part that would be a neat setup!
Remember: fuel, spark, compression.
If you have spark and compression, try putting a teaspoon of gas in the cylinder and see if the motor will fire.
Rob

 

[EastCoast]

Yeah I need to find a pull start housing and cord and find out what the mix would be as it is 2 stroke its 335cc not sure about the hp it would put out and it has no coil so it had to be points.

 

[EastCoast]

I have question about the Stub Axle Carriers. You use a 5/8 x 4" bolt and the tube is 3/4 OD and 1/2 ID and 2.5" long, but there is a lot of play between the bolt and the tube. Should the bolt not just fit into the tube snug or is there to be play?

 

[Doc Sprocket]

it has no coil so it had to be points.

That doesn't add up. Breaker points-type ignition systems still require an ignition coil.

 

[Doc Sprocket]

I have question about the Stub Axle Carriers. You use a 5/8 x 4" bolt and the tube is 3/4 OD and 1/2 ID and 2.5" long, but there is a lot of play between the bolt and the tube. Should the bolt not just fit into the tube snug or is there to be play?

Is this from the book, you mean, or from another plan? How can a 5/8" bolt fit at all in a 1/2" ID tube?

 

[EastCoast]

Is this from the book, you mean, or from another plan? How can a 5/8" bolt fit at all in a 1/2" ID tube?

sorry thats what another set of plane I had at work said to use but yeah it don't work.

 

[Doc Sprocket]

Regardless of which frame design you settle on, you can still reference Champion's book for things like that. For what it's worth, I found my copy a few minutes ago and am now better prepared to answer any questions about it you may have...

 

[EastCoast]

The book is in mm. Says 140mm length of 22 mm diameter steel tube, 3mm minimum wall thickness for steering pivot housings. But all the bolt I have a t work are in standard. I have 1" OD and 3/4" OD round tube at work. What set up has others used? I want the bold to fit tight in the tube.

 

[Doc Sprocket]

divide mm by 25.4 to get numbers in inches, and then use that to guide your selection of SAE fasteners. You want a fairly snug fit, with room for a sleeve, bushing, or grease, so make sure your selection is appropriate.

 

[EastCoast]

Found some round tube today the a 5/8 bolt fits into tight but still turns. Should I drill and tape it for a grease nipple?

 

[NABS]

if you are going to make it two seater, make sure that you even out the weight distribution (where the engine is placed / bulk weight of go kart) so that it runs smoothly and all of the tires have traction.