Motorized Bicycle From Scratch 8. Steps with PicturesIntroduction 7. Motorized Bicycle From Scratch. Hello again everyone In this instructable I will be showing you how to build a 7. Flying Horse 38cc Lock Load Friction Drive Bicycle Engine Kit 4Stroke The Flying Horse 38cc Lock Load Friction Drive bike engine kit just made mot. The bicycle we will be building is far superior to kit motors in pretty much all areas, including speed minimum 3. EPA emission standards, and reliability. Bicycle Touring Tips, Lessons Learned, and Tricks of the Trade. Things to do to Keep On Cycling. Common Bicycle Mechanical Issues Addressed. Find great deals on eBay for Bicycle Motor Kit in Gas Scooters. Shop with confidence. This kit will allow you to turn your bicycle into a gasoline powered motorbike 1 Gallon of fuel runs 150 miles The engine is designed to be pedalchain started so. Lets get started PS sorry for the crappy quality video, Ill upload a better one at some point once I figure out how to do editing and stuff. Step 1 Part 0 Laws. Before you begin, it is a good idea to check the laws in your state or country, as motorized bicycles are not legal everywhere. Here are a few links to help you out http motorbicycling. Motorizedbicycle. Step 2 Part 1 Sources for Parts and Tools List. I have compiled a list of a few good sources from which to buy motorized bicycle parts. Affordablegokarts has an entire page dedicated to aftermarket parts specifically for 7. GTC makes a jackshaft which we use on our bike. Create-a-Go-Kart-with-a-Lawnmower-Engine-Step-29.jpg/aid188278-v4-728px-Create-a-Go-Kart-with-a-Lawnmower-Engine-Step-29.jpg' alt='Installing An Engine On A Bicycle' title='Installing An Engine On A Bicycle' />MFG makes sprockets, chains, and mini hubs, among other things. Rebel Gears makes high quality custom motorcycle sprockets, allowing you to specify tooth count, chain size, center bore, mounting bolt pattern, color, and more. Amazon sells motorized bicycle gas tanks, and probably lots of other useful stuff. Custom Motored Bicycles sells a wide variety of parts for motorized bicycles, including a disc brake sprocket adapter. Orchard Supply Hardware, Home Depot, insert your local hardware store hereThese sell nuts, bolts, and steel shapes, as well as other useful stuff. Step 3 Tools List. Here is a list of the bare minimum of tools you will need to have access to. Other tools may be required depending on your situation. Drill Band Saw a grinder will work, but expect to go through at least a half dozen cutoff discs Grinder Oxy Acetylene Torch only needed for bending exhaust pipe, have someone do it for you if you dont have one Sockets Spanners Screwdrivers Taps Pliers Wire Cutters Utility Knife. Allen Keys. Step 4 Part 2 Choosing a Bike to Motorize. The first step and one of the most important in motorizing a bicycle is to choose a good bike to motorize. You cant just go slap a motor on any old bike and expect it to work, especially one as large and powerful as the motor well be using. A good bike to motorize has several key attributes, all of which must be fulfilled if the build is to be successful. I have outlined these attributes in the following steps. Step 5 Mini Parts List. Please note that I will not be going into detail on the more advanced bicycle repair stuff, such as how to replace a front fork or install a disc brake. If you do not know how, leave it to the professionals at your local bike store. Each mini parts list only covers one section of the instructable. Parts. Steel Frame Bicycle Disc Brake Front Suspension Fork Indestructible Wheels Puncture Resistant Tires and Inserts Grip Shifts Brake Levers Shift Cable Brake Cable Shift Cable Housing Brake Cable Housing Single Speed Conversion Kit. Tools. Allen Keys Pliers Wire Cutters Grinder optional, although you will need one later so might as well go buy one now if you dont have it already Lubricant tri flow, WD 4. Step 6 The Frame. First, the bike must have a large enough frame gap to fit the engine we will be using, which is the 7. Manual Of Surgical Pathology Gross Room Procedures To Remove there. This is a fairly large engine to be cramming into a bicycle, so as far as frame gaps go, the bigger the better. Remember that the pedals must still be able to turn after the engine is placed into the frame. The frame must not be made of carbon fiber, as carbon fiber will crush and splinter if we try to mount the motor to it. Aluminum is not great, but it will do if you dont intend to ride it much. Be warned that if you do use an aluminum frame, the frame will eventually develop cracks and break from metal fatigue. Steel is great, by far the best. Some specific frames that work well are the older models of the Trek 8. Trek 8. 20 frame with lots of aftermarket parts, this is one of the bikes I will be motorizing for this instructable and the older steel frame models of the Specialized Stumpjumper and Hardrock. Look for a 2. 1 frame or larger if they exist. Bear in mind that if you find a good frame with a bunch of junky parts on it, you can often swap out the other parts. Picture 3 is of the red and black bike before I stripped it down to the frame and rebuilt everythingStep 7 Good Brakes. One of the most important features of a motorized bicycle is good brakes. Because you will be going faster, you need more stopping power than an average bike. Id recommend getting a disc brake for the front, however you can not have any sort of disc brake in the back, as the sprocket that drives the bike will be mounted to the disc brake mount. In order to compensate for having normal although still good bicycle brakes on your bike, we will be setting up the engine in such a way that letting off on the throttle makes the engine act as a secondary brake. Pictured is the red and black bike, sporting a top of the line disc brake with a 2. The brake cost me just over 1. I did myself. Step 8 No Rams Horns You will want to avoid using a bicycle with rams horns or other handlebars with curved ends, as it will force you to use a thumb throttle instead of a twist throttle, the former of which makes your thumb get tired fairly quickly on long rides. If you have a road bike and dont want to spend the money on a new frame, however, there are workarounds. For example, I have a motorized road bike which has a thumb throttle and also has the rear shifter converted into a second throttle control that locks in place. Step 9 Wide Rear Hub Clearance. The rear sprocket will be mounted to a disc brake mount on the rear wheel, so we need enough clearance that the chain does not rub against the frame this will kill a bike frame very quickly. Step 1. 0 Crank Clearance. The cranks must be able to clear the engine and jackshaft once it is mounted in the bicycle. If you have a 2. 1 frame, this probably wont be an issue. Dont worry about not being able to put your feet on the pedals with the engine in place, we can extend the pedals with pieces of metal if necessary. Step 1. 1 Nothing on Top Bar. It is helpful, although not absolutely necessary, to not have cables running along the top of the top bar, as they get in the way of mounting the gas tank. If your bike does have cables on the top bar like the Trek 8. Step 1. 2 Sturdy Wheels. Because weight is not really an issue now that you wont have to propel the bike yourself, you should make sure to beef up the bikes wheels. They will be hitting bumps and rocks at much higher speeds than they normally would, and normal bike wheels wont hold up too well to prolonged riding. I recommend getting wheels with 1. Double walled rims also help, but are not really necessary unless you plan to ride a lot. UPDATE 182. 01. After riding with the wheels in the first picture, I found them to not be strong enough for prolonged use. Therefore, I recommend using mag wheels such as teny rims. I now use mag wheels for all my builds. Step 1. 3 Rear Disc Brake Hub. You will need a rear hub with a disc brake mount. Step 1. 4 Good Tires. Get some puncture resistant tires. Also, try to choose thick tires with a lot of tread, as this will both reduce your risk of crashing and provide you with a more comfortable ride. Puncture resistant inserts and tubes are also good. Step 1. 5 No Rear Suspension. Predator 2. 12 Performance Parts up to 2. LIST PRICE 4. 95. CYBER SALE 4. 48. Go Karts, For all the latest generations of Predator engines being sold today. Boost your engine to over 1. Includes Intake, Exhaust, ChainHeat Guard, Top Plate, Fuel Pump, Valve Springs, Cam, Main Jet, Billet Flywheel, Billet Rod and more.