Starting the Frame

[Doc Sprocket]

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?

I would. Saves you from disassembly every time you want to grease it, and you'll be willing to do it more often. If you want to get really fancy, you could hacksaw or file a slot the length of the tube, intersecting with the fitting hole. This would force the grease along the length of the tube when you grease it.

 

[EastCoast]

I would. Saves you from disassembly every time you want to grease it, and you'll be willing to do it more often. If you want to get really fancy, you could hacksaw or file a slot the length of the tube, intersecting with the fitting hole. This would force the grease along the length of the tube when you grease it.

You mean on the inside of the tube right?

 

[EastCoast]

Here is the start to the front spindles.

I need to puck up longer bolts, and finish them up.

 

[Doc Sprocket]

Lookin' good. Yes, I did mean inside the tube. Make sure to chamfer the edges of the slot with a triangular file.

 

[oldbikerarlo]

Not to butt in, but the ingition on the Rotax is a magnito type, the coil is at the othe end of the plug wire. under the shroud.

 

[EastCoast]

Lookin' good. Yes, I did mean inside the tube. Make sure to chamfer the edges of the slot with a triangular file.

Ok thanks

 

[EastCoast]

Not to butt in, but the ingition on the Rotax is a magnito type, the coil is at the othe end of the plug wire. under the shroud.

Yes

 

[EastCoast]

What kind of Caster and or Camber angle should I use if any?

 

[EastCoast]

Something like this?

How do I find the angles?

 

[Doc Sprocket]

A safe caster range is 10-15* negative.

Zero camber is acceptable under most circumstances, just be sure to kave an appropriate KPI angle. That's typically around 10*, but is truly found as such-

You should be able to draw and imaginary line through the kingpin to the road. This line should meet the road dead centre of the tire's contact patch.

Your Ackermann angle is dependant on track width an wheelbase, which I can explain further if needed.

EDIT- I just took a peek at the book (if you're still referencing it) and found a fairly critical error on page 49 regarding camber. The buggy in question is built with zero camber, and following the patterns will result in zero camber but the text suggests otherwise.

 

[EastCoast]

I just took a peek at the book (if you're still referencing it) and found a fairly critical error on page 49 regarding camber. The buggy in question is built with zero camber, and following the patterns will result in zero camber but the text suggests otherwise.

Yup I seen that, thats why I was asking. Thanks

 

[EastCoast]

Got a steering wheel today.

Fuel & Brake Pedals

I was wondering about using or adding something like this on the front spindles, but how long does it have to be? 4"?

 

[oldbikerarlo]

Your Ackermann angle is dependant on track width an wheelbase, which I can explain further if needed.

could you please explaine how to calculate the ackermann,

 

[EastCoast]

I am thinking about getting this http://www.princessauto.com/power-t...gasoline/8088379-6_5-hp-horizontal-gas-engine I am not too sure about the rotax motor, I have been told it would run too hot.

 

[Doc Sprocket]

Careful with that steering wheel, I think that's the type that nearly caused Bluthunder to meet his maker!!! LOL

Oldbikerarlo, I've sent you a PM re: your Ackermann questions.

 

[EastCoast]

What do you think about the 6.5 hp Power Fist?

6.5 HP @ 3,600 RPM OHV
Recoil start
3/4" keyed shaft
3.6 litre (0.95 gal.) gas tank
Low oil shutdown
Low noise and vibration

$89.99 @ www.princessauto.com

 

[Doc Sprocket]

Yeah- I saw that price in the flyer I got and was mad that I already had one!!!

Anyways- go ahead and get it. It's a Honda GX200 clone like all the others, and one of the better ones from what I can ascertain. The one I got even had all the hardware to hook up a throttle, nothing else required but a cable...

 

[Clayton]

The princess auto 6.5hp powerfist it a good motor. I have one on my mini bike (link to pic below) anyway, I would say that they are relativley easy to hook up, my fisrt time swapping a motor only took me 1 hour (and I had to deal with a jackshaft, and clutch troubles).

http://i1181.photobucket.com/albums/x434/Clayon83/P2060376.jpg
http://i1181.photobucket.com/albums/x434/Clayon83/P2060372.jpg

 

[EastCoast]

Finished the spindles today using the mower parts.

And made tie rod ends today

here are the spindles with tie rod ends.

 

[gfigs911]

looks good...its cool what a little fabrication skill can get you...