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Hanging idle please help

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Wenman:
I’m wondering if the return spring is incorrect?

Running out of ideas now

Does anyone have a spare throttle return spring I could purchase? DSS have them as discontinued??

Thanks

Alan

blackeagles:
part no 16123300004  ebay 401385919944 but you could try using another spring or reducing the existing one

Trigger:

--- Quote from: Wenman on July 14, 2020, 02:03:04 PM ---I’m wondering if the return spring is incorrect?

Running out of ideas now

Does anyone have a spare throttle return spring I could purchase? DSS have them as discontinued??

Thanks

Alan

--- End quote ---

Sliver do the spring Link >>> https://www.davidsilverspares.co.uk/CB750K2-FOUR-1972/part_221951/

Wenman:

--- Quote from: Trigger on July 14, 2020, 02:14:41 PM ---
--- Quote from: Wenman on July 14, 2020, 02:03:04 PM ---I’m wondering if the return spring is incorrect?

Running out of ideas now

Does anyone have a spare throttle return spring I could purchase? DSS have them as discontinued??

Thanks

Alan

--- End quote ---

Sliver do the spring Link >>> https://www.davidsilverspares.co.uk/CB750K2-FOUR-1972/part_221951/

--- End quote ---

Thanks trigg, currently showing out of stock tho 😩

K2-K6:
"Is there anyway of raising the sliders so they don’t go down as far as they do when they slow down by screwing the idle screw in raising the idle but then somehow reduce the idle on the air/fuel screws.

I’m running out of ideas now 😩"


--- Quote from: K2-K6 on July 14, 2020, 11:32:35 AM ---
--- Quote from: K2-K6 on July 13, 2020, 05:33:47 PM ---Ok,  in that direction of "oddness" what have you ended up at when setting the idle mixture screws?

Projection to try and see if if makes a difference,  turn the mixture screws IN a quarter turn from where they are,  this should slow the tickover down ( makes it richer) forcing you to wind up the main tickover rpm control for the carb rack to bring it back up to normal level.

Let us know if that changes it.

--- End quote ---

The routine I posted a couple back is trying to move it in the direction you are after,  give that a try and see if you get an improvement to assess if it's on the right track.

--- End quote ---

This is what the above setting is trying to do.  By turning the screws inward it should make it richer and slow the rpm,  to the point where you have to raise the slides with the master tickover control screw setting, and so bring the throttle slides up a little at idle.

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