Help
This is the new help section. It is not completed, but the information on this page so far should help u build a cool minibike like mine.
Basically this was just a crazy far out Idea, just like many of our endeavors that keeps getting better and better.
The main part of the frame is constructed of a push scooter. The scooter frame was cut 4 inches from the front of the foot plate and angle iron was bolted on to extend and widen the frame. The 5/8 rear axle is held on with U-bolts and a 5" inch by 3.5" inch wheel is positioned on the axle with hose champs. The frame can be made as long or short as desired by using longer or shorter angle iron extensions on the two tubes of the frame as described earlier. The engine mount is a plate made two inches longer than the engine mount bolt pattern and as wide as needed. This plate is mounted to the angle iron frame extensions with 1/4 inch bolts in front and back of the engine mounting holes. The engine itself is mounted centered front to back and aligned side to side aligned to the sprocket on the back wheel. It is important to get the engine's shaft parallel to the axle and the clutch pulley in line with the rear sprocket( assuming you are going to use a centrifugal clutch and chain, and I hope you do.) Chain tension can be adjusted by cutting grooves instead of holes in either the engine mount or the rear axle's U bolt holes. A briggs 3.5 is a good and powerful engine, my favorite for use with a centrifugal clutch. The old 5 horse briggs is a good torquey engine but is not as responsive as the 3.5. Use the 5 horse with a Torque-a-Verter or other transmission. Once the engine is mounted a seat can be constructed from almost any kind of framing aluminum or angle iron. just look at the pictures on the website to figure it out. It is important to put a cross brace at the back of the seat frame to keep it from parallelograming. Apehanger handelbars are best used for controll. The front wheel from the push scooter up front will work fine , although it is best to use a metal cross-spoked wheel. Use regular cantelever(like on a ten speed that probubly came with the scooter frame) brakes and a regular brake handle for the front brake, and whatever you can get in the back. Looking at the pictures should fill you in on the rest. Try not to crash into any trees with your new death trap.
|
