Question about Hyosung Motorcycles
Has no speed barely pushes passed 40-50 mph
Check air filter, spark plug and fuel delivery in that order. then check for plugged exhaust, valve adjustments and then timing. in the mean time answer these questions. is the gas fresh and from a known good source ??? did you do anything to it recently ??? is the engine revving high while you are moving ???
Posted on Nov 27, 2013
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Posted on Jan 02, 2017
I would suggest that you have the valve clearances checked.
Also, check that the carb is clean. Pay particular attention to the PILOT JET as this opperates the idle circuit.
Posted on Mar 05, 2009
Its nothing to do with the damper
The battery may not be accepting charge due to its age or condition (although as u can bump it soon after it sounds ok). Check this out with a charger & meter
There may be a bad or dirty connection somewhere between the alternator & regulator/rectifier or from there to the battery
It could also be a defective alternator winding or regulator/rectifier unit
Please mark this as useful (if it has been!!)
Posted on Aug 03, 2009
Time for carb cleaning , blow the jets with compressed air,check the float level.
Check the spark plug and replace if neccessary.
Check the air filter too, and if you don't have an 'inline' filter for your fuel line,install one.
Basically yr bike's engine needs a tune up...check the valve clearance too!
Hope this helps!
Posted on Oct 30, 2009
The idle circuit is still plugged up or it would not be giving you this problem. Remove the carb and dis-assemble it then soak the parts in denatured alcohol for 30 minutes. Then use a spray carb cleaner to finish the job. Spray into all the little holes in the carb body. Especially spray into the air screw and throttle screw holes. Reassemble the carb and LIGHTLY seat the air and throttle screws then turn each of them one and one half turns outward. This is the factory setting. Before putting the slide back into the top of the carb, move the clip on the jet needle one notch lower on the needle. This will richen the low end fuel mix. Install a new spark plug and clean the air filter. Please rate my answer. Thanks.
Posted on Feb 09, 2010
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