Fabricating a TPS Driver

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Written by Randy Fox (randysgym)   
Thursday, 27 August 2009

Ordering (or building) new throttle cables

There are two cables to order:

  • A stock cable, but three inches shorter
  • A short cable, with a 5" long outer casing (cable sheath), a 9" long inner cable, a stock-type end-barrel on one end of the inner cable, and an end-barrel with a set-screw for the other end of the inner cable

The end fittings for the casing of your short cable will vary, depending on where you mount your TPS module, and what type of carb you're using. If you are installing a Genesis IV carb, like I did, you'll want an S&S type end-fitting for the cable casing's carb-end. And if you install your TPS with a bracket like mine, you'll want the other end to have an end fitting that is as short as possible. I made my own cable end fitting from an old, stock, throttle end fitting. To do this, I just shortened (trimmed) it as much as I could, leaving just enough threads to keep it strong. See photos below.

 

yamaha road star, tps driver, throttle position sensor, cable

 

yamaha road star, tps driver, throttle position sensor, cable

 

yamaha road star, tps driver, throttle position sensor, cable

 
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