Thread: OS32 power loss
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Old 08-06-2007, 06:25 AM
hawkman hawkman is offline
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Join Date: Jan 2006
State: South Atlantic
City: Port Stanley
Country: Falklands
Posts: 1,557
Re: OS32 power loss

72 degrees? where was this measured?

As a rule the backplate should be warm...but never hot....if its hot this could mean its running too lean.

Have you checked the fuel system....check for blocked pipes...including the muffler nipple and line....blow through these to check.

Do you have a fuel filter on the fuel line to the carb? if not then do fit one....its suprising how much gunk gets into the carb this way.

Remove the carb and check it out....DONT mess with the idle needle....this is the small screw inside the throttle barrel....just check the area where the fuel goes into the carb....a bit of grass or muck will easily ruin the fuel flow.

If the engine is new, I take it is, then run it rich.....ie when you land check that there is some oil on the skid below the exhaust pipe...smoke will tell you that all is ok as well...basically smoke and oil.

After you have run a couple of gallons through the engine, then you might retune it.

The glo plug MIGHT be faulty....they can fail....but usually they break....but you will know...the broken plug will still ignite the fuel mixture....its when you land and switch off and go to restart that a broken element will show up...the engine wont start!

Heres a good tip: before starting your engine....engage the starter shaft....and rotate the engine by hand....dont use the glo battery! you are checking the engine turns over and hasnt filled with fuel in hte crankcase or cylinder....starting an engine thats flooded can ruin the con rod and your bank balance.

Rob
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