Motorcycle drivetrain on an ATV?

[jmc]

Ever since I was a kid driving a go-cart, I always thought it would be fun to replace its stock engine with a motorcycle engine/manual transmission. Now that I have some elbow room for a track, is there such a thing for rough ground? I see those two seaters with a suspension system about everywhere but does anyone make something with a biggger engine and a manual transmission? Single seater? Seems like it would be a lot more fun.

 

[nybirdman]

A friend of my son's years ago put a 750 Honda four cylinder in a old Yamaha four wheeler.Stupid,scary fast.

 

[jmc]

A friend of my son's years ago put a 750 Honda four cylinder in a old Yamaha four wheeler.Stupid,scary fast.

Yeah, even Honda's 350 4 cylinder would be a lurch in performance over the chainsaw engines at the time. Did he use its transmission too?

 

[MossRoad]

How about a Yamaha RD400 two stroke twin?

 

[Teachu2]

Yamaha - R1 Engine Swap - Keep 4x4!!! | UTVUnderground.Com - The #1 Resource for SXS Enthusiasts

100hp 1000cc Yahama R1 motor in a Rhino. Top speed approaches 100mph (aka STUPID FAST).

 

[MossRoad]

YIKES! :laughing:

 

[DK35vince]

I liked this one
No standard transmission though
Speedwerx Wildcat Sport 8 Custom - YouTube

 

[nybirdman]

Yeah, even Honda's 350 4 cylinder would be a lurch in performance over the chainsaw engines at the time. Did he use its transmission too?

Yes ,they used the transmission also.Extended the frame.Not real "off road" worthy but quick(90 mph) on ATV tires!