Carb Quick Reference

Correctly servicing the Carburettors on these bikes is paramount to good running and fuel economy so any work done will pay back in better mileage :)
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Carb Quick Reference

Postby Gman » Mon Jul 28, 2008 8:32 pm

There are 2 basic types of carburettors used on the CX/GL 500 motorcycles.There's no point going by seller's Year reference as the carbs may have been changed.

All you need to know is.

Type 1:

No metal Brown/Cream/Orange floats and the float needle valve just slides into the Float.


Type 2 :
Black floats with metal top part and the float needle valves have a small Metal spring on them that hooks over and onto the


The Primary and Secondary Main jets are the same e.g 78 and 112.

The 78 jet goes directly into the Carb body.

The 112(115 jets gt supplied in some kits but I've never used them) go into the Brass Hex holder.

You can get the kits of Ebay just make sure you pick the right one e.g float needle valve to match your floats.All the other parts/o-rings etc in the kits are interchangeable.

Note: On these bikes you Screw the idle screw adjusters Out towards the carb body to Enrich the Mixture and Screw In to make it leaner!!

The metal type floats are adjustable so you can set the float heights at the correct 15.5mm from the perpendicular.
The None metal types are not supposed to be adjustable but can be adjusted using a Hairdryer to warm them a bit and then
pressing them either way required so that when they return they return to the 15.5mm from the perpendicular.

See here,

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Location: Hull.Yorkshire.UK.2x1980 CX500ZABs:Citroen ZX TD(250,000 miles)

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