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Old 01-01-2007, 09:52 PM
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Location: Brisbane, AUSTRALIA
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Default os 91 Four Stroke Pump????? Need Help

I have a os 91 Four Stroke and am wanting to put a perry Regulating pump on.

The problem i am having is you need crank presure to utilise the perry pumps and and with the four stroke motors they have a ventilated crank.

What i was wondering is can you use the presure from the exhaust to operate the perry pump properly???

I am relativily new to this and would really greatly appreciate any information that i could get.

basically, i have this motor in a topflight Spitfire 60-90 size and the fuel tank is raised higher than the carb, want to use a reg, pump but if anyone has any other ideas i am open to any suggestions.