IntelliCarb of Ported Saw

[Kicker_92]

Has anyone run into problem with the Stihl Intellicarb feature on a ported saw thats drawing more air than before?

Can the inlet for the airbox sensor just be blocked off?

 

[wigglesworth]

I have a few ported saws with the intellicarb and no problems as far as I can tell. All the intellicarb does is slow the pulse down on the metering side when the filter get's crummy. It shouldnt cause any problems at all.

 

[Kicker_92]

Is there any chance that this could cause the saw to lean out, then flood, then lean out, and flood again?

I'm trying to track down a problem that started just after porting. I think the next step woudl be to vent the metering diaphragm to defeat the "intellicarb" and see how that goes.

 

[Danger Dan]

Is there any chance that this could cause the saw to lean out, then flood, then lean out, and flood again?

I'm trying to track down a problem that started just after porting. I think the next step woudl be to vent the metering diaphragm to defeat the "intellicarb" and see how that goes.

Put a intellicarb from an 046 on a ported 50 Rancher, (complete with boost ports) and had to open up the tank vent a bit, but make sure you have a clean, (new) fuel filter before you do anythiing.

 

[Kicker_92]

Put a intellicarb from an 046 on a ported 50 Rancher, (complete with boost ports) and had to open up the tank vent a bit, but make sure you have a clean, (new) fuel filter before you do anythiing.

Got this one resolved, it was a weak diaphragm and dirty fuel filter. Ended up opened the high speed jet by around 10% to provide more fuel.

After looking into how it functions, the metering chamber being vented open, or being vented to under the air filter like in the Intellicarb will not make a differance with a port job.