engine not returning fully to idle - MVAgusta.net
 
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post #1 of 10 (permalink) Old 06-20-2013, 01:25 PM Thread Starter
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engine not returning fully to idle

People,

My F4 2000 model has just been rolled out for the summer here in the UK.

Whenever the engine is either on or off, the throttle twist grip opens nicely and returns back with a sharp snap that to me says there is no noticeable cable resistance.

However, when riding sometimes when easing off the throttle the engine doesn't want to slow down very quickly (as if I still have the throttle partly open).

Does anyone have any ideas what maybe causing this and how I rectify it?

Cheers




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post #2 of 10 (permalink) Old 06-20-2013, 01:38 PM
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Possble cable is being pulled when turning bars left or riight of centre.

joe
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post #3 of 10 (permalink) Old 06-20-2013, 02:05 PM Thread Starter
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Cheers Joe but it appears to even be when straight

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post #4 of 10 (permalink) Old 06-20-2013, 02:49 PM
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Throttle body sync after checking for air leaks on the rubber hoses and caps would be my first thoughts. The rubber perishes with time.
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post #5 of 10 (permalink) Old 06-20-2013, 03:29 PM
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If you apply pressure to close it does it then return to a proper idle? I had that problem when my cables needed adjustment. (I mean when I adjusted them and screwed it up..)

Si
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post #6 of 10 (permalink) Old 06-20-2013, 03:32 PM
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Also check that the bar end weight isn't fouling on the hand grip.

This happened to me.

Dave.
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post #7 of 10 (permalink) Old 06-20-2013, 03:55 PM
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Yep the hand grip rubber fouled the bar end on mine a couple of times. Most disconcerting at the time!


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post #8 of 10 (permalink) Old 06-20-2013, 04:22 PM Thread Starter
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cheers guys I am going to look at the weekend. i don't think the grip is sticking to the bar end. I have just recently adjusted the throttle screws with the sliding rod type arrangements so maybe that has done it

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post #9 of 10 (permalink) Old 06-20-2013, 07:43 PM
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How long was it stored? gummed fuel may Partially clog stuff making for a lean condition. Lean condition can cause the idle to "hang" before returning to normal.

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post #10 of 10 (permalink) Old 06-20-2013, 08:03 PM
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Quote:
Originally Posted by Submariner View Post
cheers guys I am going to look at the weekend. i don't think the grip is sticking to the bar end. I have just recently adjusted the throttle screws with the sliding rod type arrangements so maybe that has done it
I think you answered your own question right there.

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