OS 1.6 FX Starting question
04-17-2002, 05:33 PM
#1
OS 1.6 FX Starting question
Hello,
I have an OS 1.6 FX with a Brisson pitts muffler and a Pro Zinger 18-8 prop. I also installed a perrry oscillating pump as per the manufacturers directions so I could put the tank on the aircraft's center of gravity. I also have the muffler pressure tap hooked up to the pressure line on the tank. I am also using a Du-Bro in line fueler.
I noticed others on this list seem to have excellent response to starting this mill. I was told to open the throttle, and cover the exhaust stacks on the muffler and flip it a few times to get a prime going. Motor is side mounted.
My problem is getting a good prime. I get fuel going up to the carburetor just fine this way, but it just runs out of the carb. I can't flip it fast enough by hand to draw enough fuel into the engine. This is really fustrating. Othwise the motor runs super. I just wish I could get it to start a little easier.
Thanks in advance for any help you can lend.
Rick
I have an OS 1.6 FX with a Brisson pitts muffler and a Pro Zinger 18-8 prop. I also installed a perrry oscillating pump as per the manufacturers directions so I could put the tank on the aircraft's center of gravity. I also have the muffler pressure tap hooked up to the pressure line on the tank. I am also using a Du-Bro in line fueler.
I noticed others on this list seem to have excellent response to starting this mill. I was told to open the throttle, and cover the exhaust stacks on the muffler and flip it a few times to get a prime going. Motor is side mounted.
My problem is getting a good prime. I get fuel going up to the carburetor just fine this way, but it just runs out of the carb. I can't flip it fast enough by hand to draw enough fuel into the engine. This is really fustrating. Othwise the motor runs super. I just wish I could get it to start a little easier.
Thanks in advance for any help you can lend.
Rick
04-17-2002, 06:00 PM
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OS 1.6 FX Starting question
Rick,
May i ask why you're using the oscillating pump? The regulator pump is designed for 2 strokes and works so very much better.
May i ask why you're using the oscillating pump? The regulator pump is designed for 2 strokes and works so very much better.
04-22-2002, 06:43 PM
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OS 1.6 FX Starting question
I use the regulating pump, so it pumps as you turn the engine over.
To get the prime into the engine, plug the carb. With cowling this can be a bit hard with your finger, but you can do it. I have a short piece of silicone tube, plugged at one end, which slips over the carb. I crank until I see fuel sloshing around in the tube, pull it off and then connect glow power. One or two backflips will have it running.
If I overprime I have to do a bit more flipping to get the mixture down to something that will start. With the exhaust port on the bottom it's easy to get the excess fuel out of there.
To get the prime into the engine, plug the carb. With cowling this can be a bit hard with your finger, but you can do it. I have a short piece of silicone tube, plugged at one end, which slips over the carb. I crank until I see fuel sloshing around in the tube, pull it off and then connect glow power. One or two backflips will have it running.
If I overprime I have to do a bit more flipping to get the mixture down to something that will start. With the exhaust port on the bottom it's easy to get the excess fuel out of there.
