ENGINE TROUBLES
03-12-2007 | 12:30 PM
#1
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From: REDHILLSURREY, UNITED KINGDOM
ENGINE TROUBLES
hello wondering if anyone could help out with some answers please,
i have an os 1.20 surpass 111 wich seems to have running problems it seems ok up to 1/2 to 3/4
throttle anymore than that and it just stops .
engine background - it hasnt run before gone througth pre start checks .
the pump unit seems ok.
and fuel pipes seem clear.
and was also told it could be down to the adjustment for the slow run.
any help wood be much appreciated as its fitted to an ultimate wich is giving me a case of ichty
transmitter sticks to get it up and flying.[&o]
cheers
i have an os 1.20 surpass 111 wich seems to have running problems it seems ok up to 1/2 to 3/4
throttle anymore than that and it just stops .
engine background - it hasnt run before gone througth pre start checks .
the pump unit seems ok.
and fuel pipes seem clear.
and was also told it could be down to the adjustment for the slow run.
any help wood be much appreciated as its fitted to an ultimate wich is giving me a case of ichty
transmitter sticks to get it up and flying.[&o]
cheers
03-13-2007 | 11:04 AM
#2
My Feedback: (11)
RE: ENGINE TROUBLES
Start out with the high-speed needle about 2 turns open from the closed position. Start the engine at about 1/4 throttle. Leave battery connected to the glow plug after engine starts and advance the throttle to full. As the engine runs at full throttle, gradually work the high-speed needle towards peak RPM. When the engine can hold a needle setting through an entire tank of fuel and be leaned to peak RPM, it's ready to fly.
Always lean a pumped engine as much as possible without RPM drop or detonation and leave the needle there. Do not lean to peak and then richen. When you fly, you must carefully listen to the engine and observe its performance. You may need to richen or lean the engine a bit, depending upon what is needed in flight.
Always lean a pumped engine as much as possible without RPM drop or detonation and leave the needle there. Do not lean to peak and then richen. When you fly, you must carefully listen to the engine and observe its performance. You may need to richen or lean the engine a bit, depending upon what is needed in flight.
03-20-2007 | 04:14 AM
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From: REDHILLSURREY, UNITED KINGDOM
RE: ENGINE TROUBLES
due to bad weather in uk never got round to trying re run on engine but, another question
may seem silly but as you can probably guess im new to the four stroke world so next question is ,on my engine at the back where the pump goes onto the back of the crank
their is 2 fueling nipples ,now do i just use one of these and leave the other blanked or do i need to run both into the tank?. [sm=confused.gif]
as before all information gladly received.
may seem silly but as you can probably guess im new to the four stroke world so next question is ,on my engine at the back where the pump goes onto the back of the crank
their is 2 fueling nipples ,now do i just use one of these and leave the other blanked or do i need to run both into the tank?. [sm=confused.gif]
as before all information gladly received.
03-20-2007 | 02:20 PM
#5
My Feedback: (11)
RE: ENGINE TROUBLES
The pump will have two fuel nipples...on for fuel from the tank, and the other for fuel to the carburetor. There is also a nipple near the camshaft case and one on the intake manifold. They are connected with a piece of tubing. Please refer to the instruction book If you don't have one, you can download it from:
http://manuals.hobbico.com/osm/fs-120s-iii-manual.pdf
http://manuals.hobbico.com/osm/fs-120s-iii-manual.pdf
