I just bought an 06 GT650R in yellow, and love it.
I have a GT 650 Comet, and it runs perfectly as long as you follow the break in and fuel procedures. Nowadays they're beginning to add ethanol to gas, and if the octane rating drops below 90, most Hyosung bikes with a 250 engine or higher are rather intolerant. The problem is that the petcock is not designed for ethanol fuel, and if you go through a tank or two of gas with too low an octane rating, you'll end up having to replace the entire petcock.
In addition, Hyosungs are particularly needy in terms of adherence to the break in procedure. For the first 500 miles (800km) try to stay below 4000rpm and 1/2 the throttle. After that, keep it below 6000rpm and 3/4 of the throttle until 1000 miles (1600km).
Also, keep an eye on the oil. The manual says to replace oil and filter after the first 500 miles, but the 650 models burn oil fast during the break in, so I changed mine out at 300 miles, and sure enough the oil and the filter were black and the magnetic tip, of the oil drain screw, was covered with filings. After I changed it at 700 miles, the oil was noticeably cleaner and the filter was not nearly as dirty, but I still changed it for good measure.
Overall, there is nothing really wrong with the GT 650's other than a less than accurate assumption of break in procedure. If they'd change the manual, most of these problems would probably be avoided. Just take care of your bike and it'll certainly take care of you.
I just bought 2007 GT-650R; the one with flames. I love this bike, just one problem with it; the battery it will not stay charged. Yes I bought a new battery, still the same thing. Need help...
Owned: Hyosung 650 Comet? 07.
"?" meaning which model when going to buy rear brake pads... minor problem. Much like the brakes shredding within the week... so don't bother :)
General parts... I had my starter button "modified" by a well intentioned gentleman... a new throttle grip assembly is actually cheaper than the air filter? ummm?
Was restricted when purchased, clocked up 5000km... 3000 miles? Then changed slides, sweet...
Redline constantly, barely service, 5000km oil changes, when I have the money, like every other repair.
Sidestand switch! Would run happily in neutral at the lights, stop when you pop in gear.
cut the wire, beautiful (make sure you don't cut the neutral wire instead... that one's blue :) )
Battery lasted almost 2 years... just started dying recently, regulator fried. Replacement from who knows what fried as well. So original battery's still fairly good... :)
New regulator time... and all the other junk if needed... fingers crossed.
Recent tendency to wobble some... hard to hold straight lines and loves left handers... is not the wheels out of line. Also intermittent... head bearings. All bearings probably by now...
Total of 56000+ km, still runs hard. 2 chains, 5th set of tyres...
Almost all bikes have that shifting problem at a stop. Nothing to worry about.
This is why I do all the work on my motorcycles myself, and when the dealer offers 500.00 Triumph gear or whatnot, I request the dealer service manual and tools. I bought my Triumph new, and now have 30,000 miles on it. I have done all work myself. My feeling is that if you can't do the maintenance on your vehicles yourself, then you shouldn't own one. Go ride the bus.
I love my GT650s, but the big problem I'm running into is finding an oil filter from auto zone etc. Any help would be great! I don't know the size it takes either.
I concur. My 07 Hyosung only has 1800 miles on it, and the engine has to be replaced. Oil leaking from the middle of the motor, and the Hyo guy couldn't explain it. I don't stunt or ride hard, so can someone explain that?
That's right, they bagged Hyundai, but now look at them. Give it time and they will be as good as any of the other sports bikes on the market... I have a 2008 model, and it goes as good as any v-twin I've ridden after a little tweaking.
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