Question about Honda Fusion Motorcycles
Its a 1983 honda aero80 it idles right with hand over carb but when hand off it gets to much air and the throtles not responden and i not on list so im jus picking one
You have a major air leak on the carb intake, cylinder, head or seals. Tighten down the head to start with. Tighten down the carb and the manifold it is bolted to. If that doesn't fix it, as old as the bike is, I would find a gasket set with crank seals and then replace the crank seals. When replacing seals tighten the center case screws. Then I would move on to replace intake manifold gaskets and head/ cylinder gaskets.
Check the crank bearings. Hold the flywheel in your hand. Lift it up and down then move it left and right. Any movement or is it rock solid? If movement then you will need to take the engine apart and install new crank bearings.
While you are checking things, pull the cylinder head and de-carbon the head and cylinder. Run the piston down and check the exhaust port. Over the years carbon may have built up in the port and plugged it nearly closed. It should be about the size of the intake port. Remove the buildup to allow the engine to breathe.
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Posted on Apr 20, 2009
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Posted on Jan 02, 2017
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