Is it possible to put a dirt bike engine into a schwinn stingray chopper?

[cacrom123]

I have a 20 inch schwinn stingray chopper occ that I previously had a cheap motorized bicycle engine on and I would like to be able to shift through gears like a traditional motorcycle, I've been seriously considering getting a used kx85 dirt bike engine which is 2 stroke and I was wondering if anyone else has had this idea or done it before, would it fit without major frame modification aside from making motor mounts etc, any advice/ ideas would be much appreciated

 

[ImpulseRocket]

Possible? Yes. It's been done before. Advisable? Do you like living?

 

[Sidewinder Jerry]

I use a 33cc 4 stroke engine. I'm 240 lbs and live in a mountainous region. What makes it possible for me to use such a small engine is because my bike is a shifter.

Without some major frame reinforcements a bicycle frame isn't designed for super high speeds. Most places that do allow self-built motorized bicycles on their public roadways also have a speed limit restriction of 20-35 mph depending on the location.

If you'd like to stay running at your local legal speed limit, I can help you to build a shifter bike.

 

[Sidewinder Jerry]

Possible? Yes. It's been done before. Advisable? Do you like living?

At least he does stop at STOP signs and red lights.

 

[GW's Motorized]

The occ frame is pretty thin metal, I doubt it would hold up to that much torque. Maybe a Lifan pit bike engine.

 

[darwin]

 

[Wyvern]

View attachment 209396

I just realized that thing has no front brake.

 

[DieselTech]

View attachment 209396

That bike has been sitting in the rain with the spark plug out of it.

 

[GW's Motorized]

That bike has been sitting in the rain with the spark plug out of it.

Look closer. It has a sp in it, and another hanging from the coil

 

[DAMIEN1307]

That bike has been sitting in the rain with the spark plug out of it.

Plug looks like it is in it to me?...lol.