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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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Misfire
I have a 2008 EC300
It runs perfect low down and to about 3/4 throttle however just when you'd expect it to come into the power, it goes flat and starts to splutter. The bike previously ran perfect to full power so I know jetting isn't the issue. I've cleaned all carb jets and put in a new plug Bike is run at 50:1 with good quality oil Im beginning to think the power valve isn't operating properly. Anyone have any ideas? |
#2
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Take off the RH power valve cover and have a look. Perhaps the actuator arm is broken. Start the engine. It will make a lot of noise, but it will run. See if the arm moves up and down as expected.
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Anders "So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie) 2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper 2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper 1998 Bimota Supermono 1986 Duc Mille S2 1975 Guzzi sidecar hack 1961 Morini Corsaro 125 etc |
#3
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Yes check the power valve.
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#4
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Also check to see if your silencer/spark arrestor is plugged. The packing can get soaked with oil and collapse, thereby restricting the exhaust.
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Phil (New bike pending...) |
#5
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Quote:
The power valves seems to be properly intact |
#6
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Have you checked for a blocked air filter? Beads of water in float bowl?
RB |
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