by Walter Rawdank » 4 years ago
Rich Provenzano wrote:I've had two partial power losses with my 912uls. Both attributed to debris in the carb bowl. A Small, minute, piece of rubber hose particle, was the problem.
Once when the engine was new, the other after maintenance.
I've heard that jogging the throttle may dislodge a small particle that got sucked up into the jet.
Flushing the fuel hoses after cutting can go a long way to prevent this problem.
Also, finding some black silt in the bowls may be contributed to the use of ethanol fuels. I do not use fuels containing ethanol, ever. 93 octane, non ethanol mo-gas is available in my area.
Rich
Yes, my only partial power loss was exactly for the same reason as Rich was describing.
Here is an actual video with sound of the event ...https://youtu.be/PCmdNnOrXOc
by Pete Ouellette » 4 years ago
Found the problem: a bracket came loose and was jamming the right side throttle lever at half speed, so could not go to full power.
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