Bell Crank Throttle Linkage
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Mountain Pass
Joined: Sep 2007
Posts: 164
Likes: 1
From: NW Ohio
Bell Crank Throttle Linkage
No offense to those of you running a cable, it's just not my cup of tea. So I've been kicking around the idea of a bell crank linkage system.
Here's the basic idea, orange square is the carb, red "L" is the bell crank, black lines are the links, blue circle is bell crank rotation path. I decided to put the fulcrum point where the pedal arm and throttle intersect at a right angle.
I was lucky enough to find this bracket at work.
Marked for trimming.
All trimmed up, and bearing (also from work) pressed in.
I welded a nut into a 3/8 pipe.
All put together.
Heim joints came from ebay. I have a third for the carb end of the link. I plan on putting the threaded rod through the hole in the pedal arm, and securing it with washers and jam nuts with a thick rubber grommet.
Now I need to design a bracket to mount it.
Here's the basic idea, orange square is the carb, red "L" is the bell crank, black lines are the links, blue circle is bell crank rotation path. I decided to put the fulcrum point where the pedal arm and throttle intersect at a right angle.
I was lucky enough to find this bracket at work.
Marked for trimming.
All trimmed up, and bearing (also from work) pressed in.
I welded a nut into a 3/8 pipe.
All put together.
Heim joints came from ebay. I have a third for the carb end of the link. I plan on putting the threaded rod through the hole in the pedal arm, and securing it with washers and jam nuts with a thick rubber grommet.
Now I need to design a bracket to mount it.
Thread Starter
|
Mountain Pass
Joined: Sep 2007
Posts: 164
Likes: 1
From: NW Ohio
Made a video of the linkage in action the other day:
<iframe width="420" height="315" src="http://www.youtube.com/embed/9NTw1oVJhNM" frameborder="0" allowfullscreen></iframe>
<iframe width="420" height="315" src="http://www.youtube.com/embed/9NTw1oVJhNM" frameborder="0" allowfullscreen></iframe>
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