Risky's Ride Revisited- New (original) engine install

Before I had a clue about motorbikes, I bought the gas tank frame from Badberry. I wanted to build my first 2 stroke and get it street legal and plated for Florida Laws. I also bought the Badberry "BBR Tuning" performance "80 / 100cc" engine kit for my soon to be legal bike. Then I read the Florida Statutes on Moped (gas motor bikes) and found out it needed to be 50cc or less. So I shelved the BBR engine and bought a silver streak 50cc motor kit and the rest is history for the Risk's Ride and its fully legal registered Florida Motorbike that reaches 35-40 mph with ease.

I was tired of kicking that BBR kit around my garage and have all three of my Whizzers running pretty well, so I parked them under the sheets for a few weeks to finally install this 2 year old engine in a box that is obviously out of date now performance wise....but none-the-less I now pursue the installation.

More details to come. Pictures: Risky as it is now and a shot of the new engine.

 

[Whitewill1412]

That's an interesting jug.

 

[GW's Motorized]

That's an interesting jug.

It's the same as my bt80 electric start, just without the electric start and with a manual clutch.

 

[Whitewill1412]

It's the same as my bt80 electric start, just without the electric start and with a manual clutch.

Oh. I didn't know they made them like that

 

[Risk Man]

It's the same as my bt80 electric start, just without the electric start and with a manual clutch.

It's the same as my bt80 electric start, just without the electric start and with a manual clutch.

Of course somehow BB claims my engine is 80cc / 100cc and here is their full BS list of great things:

• BBR Tuning 100cc Motorized Bicycle Engine 3+ HP Engine with one piece cylinder/head
• 50mm Bore, 40mm Crank Stroke
• NT Carburetor
• Angled LD Z8C spark plug (Actually came with an "E" plug.
• Super magneto
• Yamaha-style high performance CDI
• Upgraded allen bolts
• Balanced crank w/ upgraded bearings
• Stuffed crank case (thicker crank case around bearings)
• 40mm Intake Manifold
• Round exhaust port - 21 mm diameter
• High wrist pin piston
• 89mm crank rod

The round exhaust port is what concerns me. I have a SBP expansion exhaust kit that of course has the standard header. And the suppled round header muffler is not going to clear the pedal so I am going to have to modify it significantly.

 

[Sidewinder Jerry]

Before I had a clue about motorbikes, I bought the gas tank frame from Badberry. I wanted to build my first 2 stroke and get it street legal and plated for Florida Laws. I also bought the Badberry "BBR Tuning" performance "80 / 100cc" engine kit for my soon to be legal bike. Then I read the Florida Statures on Moped (gas motor bikes) and found out it needed to be 50cc or less. So I shelved the BBR engine and bought a silver streak 50cc motor kit and the rest is history for the Risk's Ride and its fully legal registered Florida Motorbike that reaches 35-40 mph with ease.

I was tired of kicking that BBR kit around my garage and have all three of my Whizzers running pretty well, so I parked them under the sheets for a few weeks to finally install this 2 year old engine in a box that is obviously out of date now performance wise....but none-the-less I no pursue the installation.

More details to come. Pictures: Risky as it is now and a shot of the new engine.

What rear sprocket are you using with the 50cc engine, flat lander?

 

[GW's Motorized]

Of course somehow BB claims my engine is 80cc / 100cc and here is their full BS list of great things:

• BBR Tuning 100cc Motorized Bicycle Engine 3+ HP Engine with one piece cylinder/head
• 50mm Bore, 40mm Crank Stroke
• NT Carburetor
• Angled LD Z8C spark plug (Actually came with an "E" plug.
• Super magneto
• Yamaha-style high performance CDI
• Upgraded allen bolts
• Balanced crank w/ upgraded bearings
• Stuffed crank case (thicker crank case around bearings)
• 40mm Intake Manifold
• Round exhaust port - 21 mm diameter
• High wrist pin piston
• 89mm crank rod

The round exhaust port is what concerns me. I have a SBP expansion exhaust kit that of course has the standard header. And the suppled round header muffler is not going to clear the pedal so I am going to have to modify it significantly.

Yeah, exhaust you will need to fabricate. I've heard people have great success with kx65 pipes.

 

[Chainlube]

Of course somehow BB claims my engine is 80cc / 100cc and here is their full BS list of great things:

• BBR Tuning 100cc Motorized Bicycle Engine 3+ HP Engine with one piece cylinder/head
• 50mm Bore, 40mm Crank Stroke
• NT Carburetor
• Angled LD Z8C spark plug (Actually came with an "E" plug.
• Super magneto
• Yamaha-style high performance CDI
• Upgraded allen bolts
• Balanced crank w/ upgraded bearings
• Stuffed crank case (thicker crank case around bearings)
• 40mm Intake Manifold
• Round exhaust port - 21 mm diameter
• High wrist pin piston
• 89mm crank rod

The round exhaust port is what concerns me. I have a SBP expansion exhaust kit that of course has the standard header. And the suppled round header muffler is not going to clear the pedal so I am going to have to modify it significantly.

The SBP exhaust I got has a separate flange, so I just reconstructed it to fit my engine. You might have to do the same.

 

[GW's Motorized]

I was looking at the split jog pipe for mine. All I'd have to do is adapt the spring connection to the original header with no muffler

 

[Risk Man]

What rear sprocket are you using with the 50cc engine, flat lander?

I have a 36 tooth sprocket on the bike now. max speed was 34mph.