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Drivetrain Badland Buggy Drivetrain

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  #1  
Old 06-22-2017, 03:56 PM
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FNR Box

Is there a box that is under say... $400 and will take a 250cc 4-stroke Bike engine?

E
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Old 06-22-2017, 11:13 PM
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FNR = Forward and Reverse?
PS; can't help in any case. good luck.
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Old 06-23-2017, 11:09 AM
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How about a T90 3spd trans from a Scout, gotta be cheap. Just block off the 2-3 side. Or a 3spd from a 60's GM 2wd pickup or car. The ole 3 on the tree unit.
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Last edited by R.DesJardin; 06-23-2017 at 12:23 PM.
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Old 06-23-2017, 03:44 PM
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Originally Posted by alwaysFlOoReD View Post
FNR = Forward and Reverse?
PS; can't help in any case. good luck.
Yes: Fwd & Rev
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Old 06-23-2017, 03:51 PM
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Originally Posted by R.DesJardin View Post
How about a T90 3spd trans from a Scout, gotta be cheap. Just block off the 2-3 side. Or a 3spd from a 60's GM 2wd pickup or car. The ole 3 on the tree unit.
Thought about it.
Actually have a T90 of the Scout flavor and the Spicer 18 Case, I'd rather sell em!
Also a Datsun T/C but that has no reverse but would be a sweet little 4WD creator, and I should sell it off too!

Really want something smaller, which I can find, but I have no budget so, $1500 is just not going to happen.

Thinking about going with the starter motor drive... Simple, Light weight...

Just figured I'd ask
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Old 06-23-2017, 04:04 PM
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Yes: Fwd & Rev
The "N" isn't for "neutral"?
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Old 06-23-2017, 04:16 PM
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The "N" isn't for "neutral"?
Generally yes.
I have seen one that is just F/R.

I just have not seen one that is afordable
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Old 06-23-2017, 06:01 PM
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I need more details. I have an idea. What's it for?
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Old 06-23-2017, 07:28 PM
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I need more details. I have an idea. What's it for?
Mid 70's Honda XL 250 engine.
Simple tube chassis/Riding lawn mower.
Minimal wheel travel. Solid axles Front>RadArm, Rear>Swing arm?
Somewhere on here there is a pix of the exhaust that is on it.
I'll stretch the wheelbase maybe a foot and slap on some ATV tires.
Needs to go slow, and a little fast; how much is that??? 25-MPH?
Just a functional tractor/ATV type toy for here on the place and maybe running in the snow... and I would like to keep the most expensive parts being the Wheels and Tires.

This is project # 385...

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Old 06-23-2017, 07:49 PM
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Ok, then.. I have seen two v-belts one has a twist, the tensioner /shift lever can tighten one of the other. The other just is loose when not is use. Seems like it was on a an old tiller or mower. Tiller I think. Yeah look at old rototiller drives.
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Old 06-23-2017, 08:30 PM
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http://photos.cubfest.com/albums/use...lt_Routing.jpg

Something like this.
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Old 06-24-2017, 11:16 AM
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Originally Posted by R.DesJardin View Post
Yup, Dad had an old walk behind sickle-bar mower that was set up like that.
But, we are talking under 5HP I wonder what kind of power a belt setup could reasonably take...
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Old 06-24-2017, 05:43 PM
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i've built several projects like this,from 10hp go karts to a 110 hp buggy.
if you are using a riding lawn mower to start with,use the original rear diff and trans as it should have fnr plus a semi automatic transmission.been there done that.
1970's xl 250 had max 20 hp so unless you've redone it big time i'd be confident in the oem drivetrain.
just my 8 1/2 cents.
i'm from canada so that means 2 cents usd
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Old 06-24-2017, 07:57 PM
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i've built several projects like this,from 10hp go karts to a 110 hp buggy.
if you are using a riding lawn mower to start with,use the original rear diff and trans as it should have fnr plus a semi automatic transmission.been there done that.
1970's xl 250 had max 20 hp so unless you've redone it big time i'd be confident in the oem drivetrain.
just my 8 1/2 cents.
i'm from canada so that means 2 cents usd
Lawn mower has a vertical shaft and the belt runs horizontal.
MotorPickel has horizontal shaft and vertical chain drive...
Chain / Belt is not a big deal; Vertical to horizontal is.
And the Mower trans-axle is noizy, one of the reasons to replace it.

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Old 06-24-2017, 08:24 PM
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Its been awhile since I owned a Snapper lawnmower. IIRC It had an axle with a plate on the same plane as the ground. The motor drive belt turned a wheel that intersected 90* with the axle drive plate and that could slide closer to and farther from the drive plate center-line. This gave a continuously variable drive. It slipped when wet tho. And I don't remember how reverse was hooked up.
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Old 06-24-2017, 11:48 PM
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CL for used Polaris parts?

Polaris has a lot of different combinations of gear boxes.

Minibuggy.net has a whole section on FNR/drivetrain, but like you said, probably too $$$, might be worth a look to get some ideas though.
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Old 06-25-2017, 09:27 AM
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What bullnerd said....Look for a trailblazer, sport, or scrambler transmission from Polaris, there's a few on Ebay for around $300 right now.
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  #18  
Old 06-26-2017, 12:16 PM
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Quote:
Originally Posted by bullnerd View Post
CL for used Polaris parts?

Polaris has a lot of different combinations of gear boxes.
SNIP<
Quote:
Originally Posted by vidio1 View Post
What bullnerd said....Look for a trailblazer, sport, or scrambler transmission from Polaris, there's a few on Ebay for around $300 right now.
This is a great idea...
It begs the question; why not just pick up a used ATV and re-purpose from there, and that would bring up the question of what to look for...
and at a priority of #385 the fact is nothing is going to happen any time soon.
Which gives me a bunch of time to find the best option for this...

Finally as I let the cat out of the bag there is now some family pressure to restore Dad's old bike which I did not expect... At all

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Old 07-07-2017, 03:55 PM
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You might scour the junk yards and look for an old ditch with or trencher. They usually have a forward and reverse gearing that could be used. Also some of then actually used Dana 60 center sections and have a locker installed in them.


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