Fitting an oil Cooler

My Z500 gets really hot after a ride, it smell hot and can feel the heat coming off it but the oil light also comes on. I was thinking of fitting an oil cooler of a Z750 to it to help out.

does anyone know how it attaches to the engine? ie what the connections to the oil ways?

oh by the way i'm using 10/40 non synthetic oil

Post edited by: iandz500, at: 2007/09/04 18:03

There are better oil coolers on the market than
the OEM ones.Most should come with all the fittings
and instructions.

Do you know if they will require drilling and tapping the engine block?

iandz500 wrote:

My Z500 gets really hot after a ride, it smell hot and can feel the heat coming off it but the oil light also comes on....

Motors usually don't overheat for no reason.
Any ideas why this is happening?


Some possible reasons for overheating are:

Engine performance modifications

Defective oil pump or screen clogged

Oil level too low or too high

Spark plugs bad or maladjusted or wrong heat range

Ignition timing maladjusted

Float bowl fuel level too low

Main jet clogged

Carb holders loose or cracked, loose carb clamp

Air cleaner poorly sealed or missing, or duct leaking

Clutch slipping

Brakes dragging

Compression excessive from carbon build-up


Any smoking from the muffler?

Has a plug reading been done?


IMO, adding an oil cooler may be treating the symptom, but without curing the problem,
[akin to adding a steering damper without attempting to diagnose reason for shimmy or wobble].


In any event, good luck toward resolving the overheating problem.

Post edited by: Patton, at: 2007/09/05 13:36

The easiest way would be to get a gpz550 oil pan and cooler on ebay or a salvage yard. Oil-pans by themselves don't show up too often, maybe you could just throw in a 1981 gpz 550 motor. Your carbs are the same except for the main jets and needles.