idling adjustment

discussions specific to the 907IE
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g.m.c.janssen
Posts: 40
Joined: Mon Jun 01, 2009 6:33 am
model: 907 I.E.
year: 1993
Location: Leiden, The Netherlands

idling adjustment

Post by g.m.c.janssen »

Have adjusted the idling to 1000-1200 rpm (from 1500 with hot engine) using the idling adjustment screws. Needed a 180 degrees turn clockwise for both cylinders. The manual warns with 'always perform the operations carefully in order not to damage the system line up'. What carefully means is unclear. Anyone with experience?
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Laverda 750SF, 1972
Laverda 1000 3CE, 1974
Moto Guzzi LeMans 3, 1983
Ducati 907 i.e. 1993
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higgy
paso grand pooh-bah
Posts: 3327
Joined: Tue Jul 29, 2008 9:50 pm
model: 907 I.E.
year: 1992
Location: Hilltown,Pennsylvania
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Re: idling adjustment

Post by higgy »

First off that set of screws is for trimming the butterflies which will require a manometer to do properly. There are two idle adjustment screws but only one is used to adjust the idle. Generally the idle screw on the left side of the throttle bodies is used as normally when setting the tps the left side throttle body is the base and the right hand is trimmed to match so the right side idle screw is backed out to where it has no purpose. The screw used to adjust the idle properly is right below the fast idle cam adjuster on the left side of the throttle bodies when sitting on the bike.
Now that your head is spinning there is the entire procedure TPS,Sync,Idle and CO trim listed in the 907 documents section of this website http://ducatipaso.org/docs/907i.e./CO%2 ... 0907ie.zip

once the two screws you show are changed in any significant way you will need to do the entire procedure to get things setup properly. If you are real lucky you can get them back to where they belong by syncing them with a Manometer assuming you have not made any other adjustments to any other settings. Once synced you will back off the idle screw and the throttle cable and check that the base TPS reads the proper mV. If it is reading the proper range you can then reset the throttle cables and adjust the idle and you should be good to go.


CO trimming is done last before the final step of adjusting the idle and does not require ant special equipment if you are familiar and have a good ear for small changes in rpm. If not a tachometer can be helpful
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
g.m.c.janssen
Posts: 40
Joined: Mon Jun 01, 2009 6:33 am
model: 907 I.E.
year: 1993
Location: Leiden, The Netherlands

Re: idling adjustment

Post by g.m.c.janssen »

Now things become too complicated for me. I will set the screws to their original position and search for help
Laverda 750SF, 1972
Laverda 1000 3CE, 1974
Moto Guzzi LeMans 3, 1983
Ducati 907 i.e. 1993
User avatar
higgy
paso grand pooh-bah
Posts: 3327
Joined: Tue Jul 29, 2008 9:50 pm
model: 907 I.E.
year: 1992
Location: Hilltown,Pennsylvania
Contact:

Re: idling adjustment

Post by higgy »

its sound much worse than it is. Just do one step at a time
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
g.m.c.janssen
Posts: 40
Joined: Mon Jun 01, 2009 6:33 am
model: 907 I.E.
year: 1993
Location: Leiden, The Netherlands

Re: idling adjustment

Post by g.m.c.janssen »

g.m.c.janssen wrote:Now things become too complicated for me. I will set the screws to their original position and search for help
Hi there you Dutch guys.

I don't get things right. The engine is still a bit raw. I need an Ducati expert to do this. Where can I best go for adjusting the bike properly, preferably in the neighborhood of Leiden? And someone with experience with older Ducati's like the 907.
Laverda 750SF, 1972
Laverda 1000 3CE, 1974
Moto Guzzi LeMans 3, 1983
Ducati 907 i.e. 1993
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: idling adjustment

Post by paso750 »

how far is Star Twin or Biggelaar from you ?
g.m.c.janssen
Posts: 40
Joined: Mon Jun 01, 2009 6:33 am
model: 907 I.E.
year: 1993
Location: Leiden, The Netherlands

Re: idling adjustment

Post by g.m.c.janssen »

paso750 wrote:how far is Star Twin or Biggelaar from you ?

Hi Paso750, are you Dutch? Thanks, that are the places to go, but not in the neighborhood. Do you have experience yourself with these guys.

Does anyone have experience with De Jong in Alphen aan de Rijn or Motortoer in Amsterdam?
Laverda 750SF, 1972
Laverda 1000 3CE, 1974
Moto Guzzi LeMans 3, 1983
Ducati 907 i.e. 1993
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: idling adjustment

Post by paso750 »

No I`m not and I don`t but I have a dutch friend who had a 750 and 906 Paso and now owns a 888 and who`s always been to these two shops.
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