1st person pov

Video in making

I started making clips with the bike to use as the video portion of the instructable. I haven't got anything i really like yet, so I shall keep filming and hopefully get something amazeballs.

Stop Moving!

I finally got around to drilling the holes into the tensioner that i needed to, because if I just left it as it was any longer the chain would be able to come loose and shatter the shell. Also it locked up the bike and it was just all around a bad thing.

Gas Leak

The gas tube that runs the gas from the tank to the engine has been becoming looser and looser, so i decided to stop a problem before it happened and just zipped tied it down.

Further Break Problems

The breaks I purchased would not fit on the actual bike, because apparently the frame only works with specific one made for that brand. So I will need to drill holes into the frame to be able to fit any improved break system onto the bike

Project Initiation Document

Project  Document

DIY Motor Bike

2/25/2018

Project Background and Information.

The project that I will be doing is I will be taking a normal bike and applying an engine to it. I will be doing this as a learning experience with mechanics, and to have a mode of transportation while I am saving up for a car. 

Business case/ Benefits of doing this project.

The benefits of doing this project will be I will gain knowledge on how to set up a motor bike, have a mode for transportation, and having a hobby that will probably last me a couple of years in order to get it perfect. 

Constraints

The bike has modifiers that can make it Faster, but using those will require me to take off the muffler. And the muffler is the only thing that allows me to hear while on the bike.

No longer in danger

I finally managed to drill the whole in the tensioner so it will stop getting loose, and the chain will stop falling off. I used a self tapping screw to make my life easier.

List of stuff used

1. Black Stallion 80cc Angle Fire Slant Head Engine 2.75 HP

2. Friction Clutch

3. Magneto With Solid State CDI Ignition

4. 44Tooth, 9 Hole Sprocket

5. 3 Plate Sprocket Kit

6. 2 Liter Fuel Tank

7. Black Muffler

8. Push Button Clutch Lever And Cable

9. Twist Throttle/Engine Kill Switch

10.Gas Valve

11. Fuel Line

12.Chain Tensioner

13. Carburetor

14. Needle Bearings On Piston Wrist Pin

15. Improved 415 Chain

16. Universal Motor Mount

17. 9-hole clamp pads

18. 15 1in 10mm bolts

19. 6 1 1/2in 10mm bolts

20. 10mm wrench

21. plyers

22. Thread Lock

23. Drill

24. Air pump

25. Bike

26. ZipTie

27. Break Pads

Let's take it off road

I want to get 28in tires meant for a bmx bike so I can take it off road and go down some dirt trails in it. As of know it has street tires, but if I get the bmx it wont slip and slide everywhere thats not a paved surface. Besides that the bike runs good and everything staying in place.

A shift in an important piece

The tensioner on the bike keeps coming loose. So I need to drill a small hole and put a bolt in there to make sure that the grip is stable. When this comes loose the chain gets too floppy and falls off the gear. This is a problem because that can cause a crack in the shell that holds everything together .

Where were goin, we dont need breaks

Everything on the bike is good except for the fact the it has no breaks, the seat is falling off, and i need to buy some more of the lock tight for the rest of the bolts that I ran out for. Besides that I runs nice and it goes pretty fast.

Firmly Grasp It

The bike works(more or less), but the screws keep falling out. This causes problems in every part of the bike. So I shall be looking for a ThreadLocker that will keep the screws in place, but not as permanent as a weld so I will still have access to the screws if I need to make further adjustments to the bike.

Slightly Functional

Everything is connected, but I still need to make some major improvements. The gas line works, but something on the inside is causing it to leak. The spark plug will generate a spark most of the time, but due to the high oil content in the gas it gets a lot of gunk on it and needs to be cleaned. The muffler needs to be welded on because it almost falls off after every time I start the engine. 

Loose chains can cause problems.

The tension-er would keep coming loose due to the shaking of the motor, so I needed to find a way to stop the disk that holds the chain from falling down. I found that the nuts and bolts from my fence fit in the frame perfectly. So I took one out of the fence to add into the tension-er, and it seems to hold it in place. This is a pretty important step because if the chain gets too loose it can clog like it did before.

The tension-er also keeps the chain aligned with the gear to keep it from falling off so thats why I cant just remove a few links. Removing the links would also make it harder to remove the chain in the future if I need to get into the carburetor again.

A Jingle Jangle

There is a strange noise coming from inside the engine itself. I'm pretty sure something came loose due to the bike vibrating like a dryer. It sounds like its in the carburetor, and I'm pretty sure that the same noise is affecting the throttle. Ever since the sound started happening the engine stalls out when I pull the throttle back.

The mixture

Without a certain oil to fuel ratio parts of the engine could burn up. This is why when you first run an engine you need to use more oil than usual to make sure everything comes out right. For my moter I use regular gas, and the Yamaha 2 stroke oil. The gas to oil ratio for the first 300 miles is 16-1 and after that it will mellow out at 25-1.

What needs to happen

The breaks on the frame do not work at all. I tried to replace the pads, and I tightened the actual cable, I even replaced the cables but that didn't seem to work. So now I think the best course of action would be to purchase a small disk break that would work with the frame. I prefer a disk break to a classic break just for the fact that it would be easier to install. The frame wouldnt work with a normal bike break system so I would have to weld it/drill the spots out and bolt it in. The disk break will work much easier and will probably have more friction and allow me to stop sooner and safer at high speeds. 

Getting The Clutch Set Up

I got the clutch cable inserted to the clutch which is pulled by the left hand side brake. I replaced the front breaks with a clutch for easy access.

Some Chain Complications

I have mounted the motor onto the bike and it will run for a short time, but every time i run it something else breaks. For example, i was riding it to test the tension-er was in the correct place and the chain suddenly snapped into a stuck position.

As you can see in the picture, the chain got wedged in between the gear and the actual casing. This could have ended much worse if the engine was running any faster because the chain is actually made of a stronger material than the case its in so if it collided fast enough it would have shattered it. I had to take out the master link in order to get it out of there. The master link is a part of the chain that is removable and can be put back on without having to shatter a link. 

I ended up getting it back into place without assaulting the outer shell, or breaking any links in the chain.

Throwing science at the wall

After inspecting the frame I have realized that it needs some basic repairs. The back breaks need to be fixed, the gear cable needs to be moved, the front breaks need to be removed, the cup holder needs to be removed, the chain needs to be replaced, and the entire frame needs to be sprayed down due to the huge amount of rust found on the gears, chain, and breaks.

Fix Er Up

I have ordered the motor in the mail and it is expected to come in next week. So while I wait for that I will be preforming maintenance on the bike i'm using as the base for my motor bike.

Gathering Scrap

I have collected a bike to use as the main frame for my DIY motor bike. It needs some work on it like a seat, a chain, and Breaks. Besides that its a nice bike. I've also ordered a 80cc 2 stroke motor online to put on the bike. It comes with some parts, but I still need to purchase some mounts that will fit the motor and bike. A proper chain because the one it came with was too flimsy for me, and a couple dozen nuts, bolts, washers, and lock washers to ensure that the bike is well built.

Time Line

The Search

Today I am searching for all the parts I will need to be able to have a fully functioning Motor bike that I can use to go to school, work, and other places within a certain radius. 

I will need to acquire a clutch, an engine, a chain, and probably some better breaks because the motor will have a lot of power. 

The Creation

Hello, I am a student at South Plantation High school and for my senior engineering project I will be creating a home made bike powered by a gas engine. I plan on using a Bike frame to be the base of the motor bike, and a chainsaw/weed eater motor to power it.

To do this I will need to aquire a 2 stoke motor that will fit the frame. Attach the motor to the frame. Switch out one of the grips and add a throtal. Remove the front break so I can add a clutch. Add the gear to the back tire that will run through the motor. add a heavy duty chain so that it wont snap. And then make further adjustments to things that need to be fixed.