Author Topic: Mystery bits  (Read 1085 times)

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Offline sameasiteverwas

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Mystery bits
« on: September 28, 2015, 07:21:23 PM »
I'm towards the end of a full front end rebuild of my 750, and starting to put everything back together. Despite my best attempts to stay organized, I've got two mystery bits I was hoping you guys could help me ID (see photo).

The one on the left fell out of the right-side switch gear as I was taking it off the handlebars, but I'm not sure what it is or how it goes back.

The piece on the right I found on the floor of the garage...no idea where it came from...
1974 CB750

Offline 754

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Re: Mystery bits
« Reply #1 on: September 28, 2015, 07:23:46 PM »
The one on the left,  drags against plastic throttle housing, like cruise control, the other goes in the headlines shell to buffer the crew to prevent splitting.
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73 836cc.. Green, had it for 3 decades!!
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Offline sameasiteverwas

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Re: Mystery bits
« Reply #2 on: September 28, 2015, 07:35:42 PM »
Ah ok, that makes sense, so the little round spot on the convex side is from the cruise control/fast idle screw. Thanks!


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1974 CB750

Offline ADW

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Re: Mystery bits
« Reply #3 on: October 04, 2015, 06:11:20 AM »
No. not from the fast idle screw, that's down at the carbs.

The piece on the left goes inside the throttle housing on the handlebars and pushes up against the part of the throttle that carries the cable. There's a thumbscrew with a spring on it on the bottom of the throttle housing that touches this little metal springy piece inside. The tighter you turn the screw, the more "holding power" this has against the throttle grip rotation, providing a crude "cruise control".

Offline sameasiteverwas

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Re: Mystery bits
« Reply #4 on: October 06, 2015, 04:37:13 AM »
Thanks for the clarification--I meant "fast idle screw" as in "it's a cold morning and I'm going to use the cruise control to keep the engine idling till it warms up." Both bits have been returned to their correct places.
1974 CB750