Gear connection issue

[thekeeper199]

hey i have a hyosung GT250, on first gear and releasing the clutch when the gear fully connects there is a slight knock sound and feeling from the back wheel though not all times but it happens alot usually when on uphills.. second gear it may happen too but rarely.
on other gears there is no problem..
what could be the problem?

[Snorty]

Could be a loose chain tightening up slightly when you knock it into first, could be the normal sound of first gear, could be your cush drive rubbers.
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Current: Yamaha FZ1 '07 | GSXR 750 SRAD

Past: CB125TDC | TZR125 | GPZ500 | CBR600F3 | ZX9-R | GSXR1000 K4

[Vincent]

Does the bike have a disc or drum rear brake?
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Space Is Deep

[thekeeper199]

Chain seems to be fine...

Disc brake

Update I stretched the clutch cable a bit and
It happens much less now.. Yet happens sometimes..?

[Vincent]

Put the bike onto the main stand and examine the back wheel. Best to make sure nothing is falling off! Put the bike in gear, (without the engine running), and spin the wheel to feel if there's much play between it and the sprocket. Most bikes have a rubber "cush drive" behind the rear sprocket, they're there to stop the wheel snatching as you pull off and can wear sometimes....esp after wheelie abuse.
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Space Is Deep