OS .91 FS Surpass (W/O Pump)
03-06-2006, 10:02 PM
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OS .91 FS Surpass (W/O Pump)
I have installed a gently used OS .91 FS Surpass (WO Pump) on my Twister 3d, however without the manual, I'm at a loss on the fuel line hookup.The engine itself has 2 hookups, 1 on the carb which I'm sure is the main fuel feed, then it has a 2nd on the lower front of the crankcase.(What would this hookup be for?)The manual I found is for Surpass II, thanks for any and all help, Rodney
03-06-2006, 10:35 PM
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RE: OS .91 FS Surpass (W/O Pump)
That would be your crankcase vent. You can leave it alone, or add enough fuel line to exit the cowling. This will allow more of the oil, that drips out of the crankcase, to fall more freely from the plane.
03-06-2006, 10:44 PM
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RE: OS .91 FS Surpass (W/O Pump)
The nipple on the lower front is just an wsed oil drain. I Put a two inch (aprox.) tube on it to keep the dirty oil away from the carb. The nipple by the carb. is the fuel hook-up.
By the way, this engine will run just finr without muffler gas tank pressure.
Matt
By the way, this engine will run just finr without muffler gas tank pressure.
Matt
03-06-2006, 11:01 PM
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RE: OS .91 FS Surpass (W/O Pump)
Thanks for the info you 2, I had the oil vent hooked to the vent side of the fuel tank(lol),she would run a bit then idle rough, then die.Perhaps she will run lots better now.
