1975 Califfo Deluxe Won't Idle

Engine turns over and runs, but refuses to idle.

Carb has been taken apart and is clean as a whistle.

Spark plug is fine.

Ideas?

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Re: 1975 Califfo Deluxe Won't Idle

Check that the intake manifold is not warped where it attaches to the engine. the flanges are sensitive to over torque and can bend or snap.

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Re: 1975 Califfo Deluxe Won't Idle

> Rebel Moby Wrote:

> -------------------------------------------------------

> Check that the intake manifold is not warped where it attaches to the

> engine. the flanges are sensitive to over torque and can bend or snap.

> >

Why is that^ ?

Would flattening the mating surface help ?

Re: 1975 Califfo Deluxe Won't Idle

Dirty30 Dillon /

Looks like poor casting/treating for a part that sees constant engine temps.

If it has a Dell'Orto SHA, clean the pilot hole, which VERY easily goes unnoticed during cleaning

Re: 1975 Califfo Deluxe Won't Idle

Breakage is usually it is from folks being over zealous and tightening the F out of fasteners instead of replacing gaskets and being reasonable. They are a bit weak to begin with so they do not take punishment very well.

> P D Wrote:

> -------------------------------------------------------

> > Rebel Moby Wrote:

>

> > -------------------------------------------------------

>

> > Check that the intake manifold is not warped where it attaches to the

>

> > engine. the flanges are sensitive to over torque and can bend or snap.

>

> > >

>

> Why is that^ ?

>

> Would flattening the mating surface help ?

Re: 1975 Califfo Deluxe Won't Idle

♣Slew Foot♣ /

Make sure that all your light bulbs work and if you hold in your front brake and it idles right then it's your safety override on the high-tension coil you may have an outed bulb or a ground fault in your tail circuit

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