After months of trail & error I've finally come up with a design that both disguises the motor & isolates vibration.
It is not fun to ride a bike with your hands, seat & feet vibrating. The motor frame is mounted near the rear axle & with springs attached to the seat clamp. This set-up totally eliminates any vibration to the bike frame.
Vibration is a killer to both the rider & structure.
Disguise: The fact is for most city dwellers in north america these motorised bicycles are against the law. If it looks like a motorcycle it is a motorcycle.
This design keeps the appearance of a bicycle so it is a bicycle albeit motor assisted.
Promanent rear view mirror (which I can actually use because its not vibrating) is a must for safe riding.
The right hand brake activates both front & rear brakes, another must for safety.
The milk crate both disguises the engine & holds the gas tank. It is cut out front, back & bottom for adequate air flow & is attachment to the motor frame with 4 screws. To take off the crate undo 4 screws, pull off gas line, and lift off. Convenient for continual maintenance.
Carburator has added 1/2" copper 45 deg. street elbow, epoxied to existing intake tube to keep it level. Holds fine.
Exhaust manifold modified with 3/4" 45 deg. street elbows, fastened togther with screw clamps. slotted female end so it can clamp down. Muffler is u-bolted to motor frame. Added lawn mower muffler to further quieting.
Replaced supplied push on spark plug boot with terminal that is bolted to plug & ty-wrapped split hose to strengthen wire/terminal.
Motor mounts at the bottom with 3/8" rubber sheet sandwiched between.
Kill button wire & clutch cable wrapped in plastic split tube.
It is not fun to ride a bike with your hands, seat & feet vibrating. The motor frame is mounted near the rear axle & with springs attached to the seat clamp. This set-up totally eliminates any vibration to the bike frame.
Vibration is a killer to both the rider & structure.
Disguise: The fact is for most city dwellers in north america these motorised bicycles are against the law. If it looks like a motorcycle it is a motorcycle.
This design keeps the appearance of a bicycle so it is a bicycle albeit motor assisted.
Promanent rear view mirror (which I can actually use because its not vibrating) is a must for safe riding.
The right hand brake activates both front & rear brakes, another must for safety.
The milk crate both disguises the engine & holds the gas tank. It is cut out front, back & bottom for adequate air flow & is attachment to the motor frame with 4 screws. To take off the crate undo 4 screws, pull off gas line, and lift off. Convenient for continual maintenance.
Carburator has added 1/2" copper 45 deg. street elbow, epoxied to existing intake tube to keep it level. Holds fine.
Exhaust manifold modified with 3/4" 45 deg. street elbows, fastened togther with screw clamps. slotted female end so it can clamp down. Muffler is u-bolted to motor frame. Added lawn mower muffler to further quieting.
Replaced supplied push on spark plug boot with terminal that is bolted to plug & ty-wrapped split hose to strengthen wire/terminal.
Motor mounts at the bottom with 3/8" rubber sheet sandwiched between.
Kill button wire & clutch cable wrapped in plastic split tube.
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exhaust_pipe.jpg123.9 KB · Views: 200