CB1100 Idle speed instability problem

[SportsterDoc]

Thanks, Max

A safety pin from my wife's pincushion works great and saves sharpening a paper clip or =.

The throttle body did not work for a ground, as I think it is plastic.

Sportsterdoc asked if i could put up a picture of my tps and his testclip idea.
This technique is widely used in the automotive faultfinding industry, i think his idea is excellent, practical and very much worth trying.
it involves sharpening a thin steel pin ( folded open paperclip ) and inserting it through the rubber seal that fits around every wire that enters a connector, we all have these.
As corrected by sportsterdoc, a safety pin is another good idea, i like the idea of safety.

We can now safely measure the voltage of the "wiper or moving part " of the tp sensor, it is the red/black middle wire.
insert the pin parallel with the wire into the connector until it stops and touches the metal part of the connector.
using something like crocodile clips connect the pin to the red test probe and connect the black probe to a known good ground, i used the sparkplug metal body for this.

no need to start the engine, just key and stop switch on.

MY FIRST ATTEMPT WAS THE THROTTLE BODY ITSELF FOR GROUND BUT THAT GAVE ME A WRONG READING, BE AWARE!

So here is the picture, not showing the black probe to ground nor the red probe to the white clip.



lets see....max

Too funny!
In North America, we use alligator clips!