Bob Donalds wrote:

> Per Lindgren wrote:
> >
> > Bob Donalds wrote:
> >
> > > Christian Iversen wrote:
> > > >
> > > > I own a '85 'Sporter Dbl.cab pickup with a 1.9l 78hp (code DG) engine. I live in Norway, Europe, so it's an Euro-spec vehicle. The engine is carb'ed, and it has an xtremely annoing off idle stumble - Noticable when cold (under choke) and irritating when hot! I don't know how many times I have stalled the engine trying to accelerate from a full stop. Any suggestions?
> > > >
> > > > All ignition components are new (cap, rotor, wires, plugs), The airfilter is new, the ignition is right (5deg. BTDC), etc.
> > > >
> > > > Help!
> > > Christian
> > > all carb engines need a preheater for the air intake in the cold weather
> > > to help the fuel atomize or the engine runs as you discribe
> > > Bob Donalds
> > > http://www.bostonengine.com
> >
> > Bob, we are talking stock carb system here! The single carb has a huge heater element directly under the carb. If you want to see it, let me know, and I'll slip my manual into the scanner.
> >
> > PerL
> > 87 Syncro 112i
> Perl
> I have only seen the pictures and have no real clue that it looks like
> in the car yes please scan them
> Christian says hes checked the preheat and it works the next thing I
> would try is the next size up main jet
> Bob

Ok, the scan is coming later.

What I told Christian, and I believe this may be the culprit, is the accelerator pump membrane that is torn. This would give just this symptom, as it doesn't give the squirt of gas needed to compensate the sudden increase in air flow.

PerL
87 Syncro 112i