Just repaired fuel line. To do so had to remove carb. Now when started all it does is runs at almost full throttle. all throttle linkages seem to be free with no binding. and not much change when adjust the throttle or idle settings. This is on a cs-400 echo
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Re: idle to high
Make sure the carburetor was re-installed correctly as any air leak between the carburetor and cylinder will cause high engine speeds but almost no power. It can also scuff the piston/ring(s) and cylinder due to very lean lubrication from the fuel. Hope this helps!
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Hi, My guess is that when you put the cable back in to the carb, It was not put in correctly. Thusly making the bike run high. There is a groove in the cable end and it must line up with a knotch on the carb.
After you do this you may have to reset the carb idle and fuel mix. Good Luck
Anthony, this could be from the governer linkage which is intended for maintaining a specified top rotation per minute speed ( R.P.M ) is a possability im not sure of your specific adjustment procedure allthough most are a simple lossening of the linkage mounting to the shaft bolt while this bolt is loose you push the linkage to full throttle travel activation allowing the control linkage that was lossened to turn in its mount ( pivot) and keeping the threw the block mounting at full activation range ( travel ) in its farthest position re tighten the arms securing bolt,to secure it at its proper activation range ( at the pivoting point) I hope this helps if your unfamiliar with this type of governer control linkage, i would seek to locate a diagram on line that you can view to assist in your specific engine's linkage adjustment , and another possability is your carbuerator's High speed needle valve is to lean or to rich hope you analysis the problem Steve
Remove the old carb. Bolt the new carb and gasket onto the manifold. Hook up the fuel line and clamp. Thread the throttle cable through the linkage and tighten. Have someone hold the gas pedal to the floor, look inside the carb and make sure the throttle plate inside the carb is full open. Next, wire in the electric choke, this should just clip on.
Now after the engine is running and warmed up...adjust the mixture and idle speed adjustments on the side of the carb. Is this a two barreled cab and does it have a manual choke?
I would have your compression tested, if its a two stroke, and you can use tools with out breaking things or yourself, pour a cup of fuel down the left hand side of the carb and take the right hand side of the carb off and crank it like mad, if fuel leaks from there you better get to a repairer.
other wise the idle adjuster is usually on the left hand side where the accelerator linkages are, it will be a screw where the linkage touches when the throttle is closed. not too hard to find if you have a light source.
I have let my leaf blower run and warm up before throttling up and still it bogs down and shuts down. There is no air cleaner to clean should I just blow out the carb. and fuel lines? It runs and idles just no high speed to blow.