shifting gear problem

Ibrahim · Two Stroke Sniffer Joined: 23 Apr 2009 Karma :

Hey, im having a problem with my aprilia rs50 gearbox and i dont know how to tackle it. As im shifting gears upwards and downwards theres a big "crack" noice. the gears do shift but its not as smooth as it should be, i cant think of what the problem could be. Any ideas on solving the problem are appreciated.

Finglonga · World Chat Champion Joined: 27 Jul 2004 Karma :

Check your clutch is adjusted properly and isn't dragging.
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Faraz · Nearly there... Joined: 26 May 2007 Karma :

Common problem on all AM6 engined bikes. (Tzr50, Rs50, that rx50 etc) Its the gear selectors.

They Slip out of gear, crunch and crack.

Both my Rs50 and my Tzr do it.

In fact, I have never come accross one that doesnt do it.

Problem was fixed it 2007 I think, when they used a new engine for the Rs50.

Faraz.
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'05 Nissan 350z Roadster GT
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B10Hazard · World Chat Champion Joined: 29 Jan 2009 Karma :

Is your chain the right tention and well lubed.
This could help with a smooth gear change.
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Ibrahim · Two Stroke Sniffer Joined: 23 Apr 2009 Karma :

The chain is well fitted, not sure about how lubed it is. i will give it a go and see how it runs. Im thinking the problem is in the gearbox though. The motorbike doesnt jump or go out of control when i change gear, it just has this loud crack noise and im worried if i leave it like that it will cause more damage.